Chemistry › Organic Chemistry

Organometallic Compounds Synthesis and Characterization

Works Count: 38503

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This cluster of papers focuses on the chemistry, biological activity, and therapeutic potential of organotin compounds. It covers topics such as equilibrium and structural studies, antiproliferative and anti-tumor activity, synthesis, characterization, and in vitro cytotoxicity. The papers also explore the use of organotin compounds as potential antitumor agents and their supramolecular structures.

Keywords

Organotin Compounds; Chemistry; Biological Activity; Antitumor Agents; Structural Studies; Synthesis; Characterization; Cytotoxicity; Metal Complexes; Supramolecular Structures

Transition Metal Dithiocarbamates: 1978–2003

2005-01-27

Graeme Hogarth

Dithiocarbamates (R2CNS2 −) are a versatile class of monoanionic 1,1-dithio ligands and as they are easily prepared, a wide range of chemistry has been developed around them. This comprehensive review … Dithiocarbamates (R2CNS2 −) are a versatile class of monoanionic 1,1-dithio ligands and as they are easily prepared, a wide range of chemistry has been developed around them. This comprehensive review with over 2000 references covers their transition metal chemistry over the past 25 years. It begins with an overview of the ligands themselves, followed by a detailed general discussion of their transition metal complexes. This includes an overview of the synthetic methods adopted, their binding modes, ligand characteristics and spectroscopic properties, together with an analysis of structural studies and thermochemical data. The bulk of the review consists of a group survey of each transition metal element. These are further sub-sectioned allowing the reader easy access to the detailed aspects of the chemistry of each complex type. Each section also contains an account of already developed and future possible applications of the dithiocarbamate complexes. While the bulk of the review deals with the role of dithiocarbamates as versatile ancillary ligands, the final section considers their increasing prevalent non-innocent behavior. This comprehensive review is a must have for workers in this area.

Structural Systematics of 1,1‐ and 1,2‐Dithiolato Chelates

1970-01-01

Richard Eisenberg

This chapter contains sections titled: Introduction Structures of 1,2-Dithiolene Complexes and Related Systems Structures of 1,1-Dithiolato Complexes and Related Systems Structural Patterns and Conclusions Notes Added in Proof This chapter contains sections titled: Introduction Structures of 1,2-Dithiolene Complexes and Related Systems Structures of 1,1-Dithiolato Complexes and Related Systems Structural Patterns and Conclusions Notes Added in Proof

The Chemistry of the Dithioacid and 1,1‐Dithiolate Complexes

1970-01-01

D. Coucouvanis

This chapter contains sections titled: Introduction Dithioacids 1,1-Dithiolates Reactions of Dithioacid and Dithiolate Complexes Abbreviations Used in Text This chapter contains sections titled: Introduction Dithioacids 1,1-Dithiolates Reactions of Dithioacid and Dithiolate Complexes Abbreviations Used in Text

Chemistry of .mu.-dithio-bis(tricarbonyliron), a mimic of organic disulfides. 1. Formation of di-.mu.-thiolate-bis(tricarbonyliron) dianion

1982-01-01

Dietmar Seyferth , Richard S. Henderson , Song Li

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChemistry of .mu.-dithio-bis(tricarbonyliron), a mimic of organic disulfides. 1. Formation of di-.mu.-thiolate-bis(tricarbonyliron) dianionDietmar Seyferth, Richard S. Henderson, and Li Cheng SongCite this: Organometallics 1982, 1, 1, 125–133Publication … ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChemistry of .mu.-dithio-bis(tricarbonyliron), a mimic of organic disulfides. 1. Formation of di-.mu.-thiolate-bis(tricarbonyliron) dianionDietmar Seyferth, Richard S. Henderson, and Li Cheng SongCite this: Organometallics 1982, 1, 1, 125–133Publication Date (Print):January 1, 1982Publication History Published online1 May 2002Published inissue 1 January 1982https://pubs.acs.org/doi/10.1021/om00061a022https://doi.org/10.1021/om00061a022research-articleACS PublicationsRequest reuse permissionsArticle Views1424Altmetric-Citations312LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts

Organotin(IV) N,N-disubstituted dithiocarbamates

1967-11-01

Flavio Bonati , Renato Ugo

EQNMR: a computer program for the calculation of stability constants from nuclear magnetic resonance chemical shift data

1993-01-01

Michael J. Hynes

A computer program has been elaborated which uses the complexation-induced displacements of NMR chemical shifts to calculate the stability constants for the general reaction (i) which gives the generalised stability … A computer program has been elaborated which uses the complexation-induced displacements of NMR chemical shifts to calculate the stability constants for the general reaction (i) which gives the generalised stability constant (ii). The program can deal with data from a wide variety of reactions including proton mM +nL +jH ⇌ MmHjLn(i), βmjn=[MmHjLn]/[M]m[H]j[L]n(ii) equilibria, metal-ion hydrolysis and metal–ligand interactions. It can also deal with situations where both ligand proton equilibria and complex-formation reactions must be considered.

Organotin assemblies containing SnO bonds

2002-11-04

Vadapalli Chandrasekhar , Selvarajan Nagendran , Viswanathan Baskar

Rate constants and Arrhenius parameters for the reactions of primary, secondary, and tertiary alkyl radicals with tri-n-butyltin hydride

1981-12-01

Chryssostomos Chatgilialoglu , K. U. Ingold , J. C. Scaiano

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRate constants and Arrhenius parameters for the reactions of primary, secondary, and tertiary alkyl radicals with tri-n-butyltin hydrideC. Chatgilialoglu, K. U. Ingold, and J. C. ScaianoCite this: … ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRate constants and Arrhenius parameters for the reactions of primary, secondary, and tertiary alkyl radicals with tri-n-butyltin hydrideC. Chatgilialoglu, K. U. Ingold, and J. C. ScaianoCite this: J. Am. Chem. Soc. 1981, 103, 26, 7739–7742Publication Date (Print):December 1, 1981Publication History Published online1 May 2002Published inissue 1 December 1981https://pubs.acs.org/doi/10.1021/ja00416a008https://doi.org/10.1021/ja00416a008research-articleACS PublicationsRequest reuse permissionsArticle Views1521Altmetric-Citations293LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-AlertscloseSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts

Complexation reactions of dithiocarbamates

1967-12-01

Adam Hulanicki

Crystal structures of tungsten disulfide and diselenide

1987-10-01

W. J. Schutte , J. L. de Boer , F. Jellinek

Gold Dithiocarbamate Derivatives as Potential Antineoplastic Agents: Design, Spectroscopic Properties, and in Vitro Antitumor Activity

2005-02-23

Luca Ronconi , Lorena Giovagnini , C. Marzano +4 more

At present, cisplatin (cis-diamminodichloroplatinum(II)) is one of the most largely employed anticancer drugs as it is effective in the treatment of 70−90% of testicular and, in combination with other drugs, … At present, cisplatin (cis-diamminodichloroplatinum(II)) is one of the most largely employed anticancer drugs as it is effective in the treatment of 70−90% of testicular and, in combination with other drugs, of ovarian, small cell lung, bladder, brain, and breast tumors. Anyway, despite its high effectiveness, it exhibits some clinical problems related to its use in the curative therapy, such as a severe normal tissue toxicity (in particular, nephrotoxicity) and the frequent occurrence of initial and acquired resistance to the treatment. To obtain compounds with superior chemotherapeutic index in terms of increased bioavailability, higher cytotoxicity, and lower side effects than cisplatin, we report here on some gold(I) and gold(III) complexes with dithiocarbamate ligands (DMDT = N,N-dimethyldithiocarbamate; DMDTM = S-methyl-N,N-dimethyldithiocarbamate; ESDT = ethylsarcosinedithiocarbamate), which have been synthesized, purified, and characterized by means of elemental analyses, conductivity measurements, mono- and bidimensional NMR, FT-IR, and UV−vis spectroscopy, and thermal analyses. Moreover, the electrochemical properties of the designed compounds have been studied through cyclic voltammetry. All the synthesized gold complexes have been tested for their in vitro cytotoxic activity. Remarkably, most of them, in particular gold(III) derivatives of N,N-dimethyldithiocarbamate and ethylsarcosinedithiocarbamate, have been proved to be much more cytotoxic in vitro than cisplatin, with IC50 values about 1- to 4-fold lower than that of the reference drug, even toward human tumor cell lines intrinsically resistant to cisplatin itself. Moreover, they appeared to be much more cytotoxic also on the cisplatin-resistant cell lines, with activity levels comparable to those on the corresponding cisplatin-sensitive cell lines, ruling out the occurrence of cross-resistance phenomena and supporting the hypothesis of a different antitumor activity mechanism of action.

13C and 119Sn NMR Study of some four- and five-coordinate triphenyltin(IV) compounds

1983-01-01

J. Holec̆ek , Milan Nádvornı́k , Karel Handlíř +1 more

Palladium-catalyzed coupling of tetraorganotin compounds with aryl and benzyl halides. Synthetic utility and mechanism

1979-08-01

David Milstein , J. K. Stille

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPalladium-catalyzed coupling of tetraorganotin compounds with aryl and benzyl halides. Synthetic utility and mechanismD. Milstein and J. K. StilleCite this: J. Am. Chem. Soc. 1979, 101, 17, … ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPalladium-catalyzed coupling of tetraorganotin compounds with aryl and benzyl halides. Synthetic utility and mechanismD. Milstein and J. K. StilleCite this: J. Am. Chem. Soc. 1979, 101, 17, 4992–4998Publication Date (Print):August 1, 1979Publication History Published online1 May 2002Published inissue 1 August 1979https://pubs.acs.org/doi/10.1021/ja00511a032https://doi.org/10.1021/ja00511a032research-articleACS PublicationsRequest reuse permissionsArticle Views3591Altmetric-Citations422LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts

Bond lengths in oxygen and halogen compounds of d and f elements

1978-11-01

W. H. Zachariasen

Organotin(IV)n+ complexes formed with biologically active ligands: equilibrium and structural studies, and some biological aspects

2002-01-01

L. Pellerito , László Nagy

Synthesis and properties of some titanium and zirconium benzyl derivatives

1971-02-01

U. Zucchini , Enrico Albizzati , U. Giannini

Absorption spectra of transition group complexes of sulphur-containing ligands

1962-12-01

C.K. Jørgensen

Relationships between the carbon-oxygen stretching frequencies of carboxylato complexes and the type of carboxylate coordination

1980-10-01

Glen B. Deacon

13C and 119Sn NMR spectra of Di-n-butyltin(IV) compounds

1986-11-01

J. Holec̆ek , Milan Nádvornı́k , Karel Handlíř +1 more

Structure determination by NMR spectroscopy. Dependence of |2J(119Sn,1H)| on the Me-Sn-Me angle in methyltin(IV) compounds

1986-03-01

Thomas P. Lockhart , William F. Manders

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure determination by NMR spectroscopy. Dependence of |2J(119Sn,1H)| on the Me-Sn-Me angle in methyltin(IV) compoundsThomas P. Lockhart and William F. MandersCite this: Inorg. Chem. 1986, 25, 7, … ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure determination by NMR spectroscopy. Dependence of |2J(119Sn,1H)| on the Me-Sn-Me angle in methyltin(IV) compoundsThomas P. Lockhart and William F. MandersCite this: Inorg. Chem. 1986, 25, 7, 892–895Publication Date (Print):March 1, 1986Publication History Published online1 May 2002Published inissue 1 March 1986https://pubs.acs.org/doi/10.1021/ic00227a002https://doi.org/10.1021/ic00227a002research-articleACS PublicationsRequest reuse permissionsArticle Views760Altmetric-Citations503LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts

Antiproliferative and anti-tumor activity of organotin compounds

2008-01-07

S.K. Hadjikakou , N HADJILIADIS

Advances in the Coordination Chemistry of Amidinate and Guanidinate Ligands

2008-01-01

Frank T. Edelmann

Structural chemistry of organotin carboxylates: a review of the crystallographic literature

1991-01-01

Edward R. T. Tiekink

Abstract This review describes the structural chemistry of organotin carboxylates, covering data acquired for mono‐, di‐ and tri‐organotin compounds and complexes. A brief discussion is given for organotin amino‐acid derivatives. Abstract This review describes the structural chemistry of organotin carboxylates, covering data acquired for mono‐, di‐ and tri‐organotin compounds and complexes. A brief discussion is given for organotin amino‐acid derivatives.

Uber die Darstellung und Eigenschaften von Hexathio‐ und Hexaselenohypodiphosphaten

1973-02-01

W. Klingen , Robert Ott , H. Hahn

Abstract Durch Umsetzung stöchiometrischer Gemische der Elemente bei höheren Temperaturen wurden die in Tab. 1 angeführten Verbindungen dargestellt und näher untersucht. Auf Grund röntgenographischer Strukturuntersuchungen, insbesondere am Fe 2 P … Abstract Durch Umsetzung stöchiometrischer Gemische der Elemente bei höheren Temperaturen wurden die in Tab. 1 angeführten Verbindungen dargestellt und näher untersucht. Auf Grund röntgenographischer Strukturuntersuchungen, insbesondere am Fe 2 P 2 S 6 und Fe 2 P 2 Se 6 gehören sie zu den Hexachalkogenohypodiphosphaten.

Syntheses and characterization of ammonium and tetraalkylammonium thiomolybdates and thiotungstates

1983-01-01

John W. McDonald , Gabi Friesen , Laurence D. Rosenhein +1 more

Review: Organotin compounds and their therapeutic potential: a report from the Organometallic Chemistry Department of the Free University of Brussels

2002-07-23

Marcel Gielen

Abstract An overview of the development of antitumour organotin derivatives is presented and discussed for selected classes of compounds, such as tetraorganodicarboxylatodistannoxanes and related diorganotin dicarboxylates, and for triorganotin carboxylates. … Abstract An overview of the development of antitumour organotin derivatives is presented and discussed for selected classes of compounds, such as tetraorganodicarboxylatodistannoxanes and related diorganotin dicarboxylates, and for triorganotin carboxylates. Among the carboxylate groups used are steroidcarboxylates and other biologically relevant carboxylates. High to very high in vitro activities have been found, sometimes equalling that of doxorubicin. Solubility in water is an important issue, dominating the in vivo testing of compounds. Polar substituents, like fluorine or polyoxaalkyl moieties, improve the water solubility. Although organotin derivatives constitute a separate class of compounds, the comparison with cisplatin is inevitable. Among the observed toxicities, neurotoxicity, known from platinum cytostatics, and gastrointestinal toxicity, typical for many oncology drugs, have been detected, but to a lower extent. Further research to develop novel useful organotin antitumour compounds needs to be carried out. Copyright © 2002 John Wiley & Sons, Ltd.

Structural studies of metal dithiocarbamates. II. The crystal and molecular structure of copper diethyldithiocarbamate

1965-12-01

M. Bonamico , G. Dessy , Angelo Mugnoli +2 more

Advances in the Chemistry of the Coordination Compounds

1962-01-01

Stanley Kirscher , JOHN ARENTS

Tin-based antitumour drugs

1996-06-01

Marcel Gielen

Organotin cluster chemistry

1989-05-01

Robert R. Holmes

ADVERTISEMENT RETURN TO ISSUEPREVArticleOrganotin cluster chemistryRobert R. HolmesCite this: Acc. Chem. Res. 1989, 22, 5, 190–197Publication Date (Print):May 1, 1989Publication History Published online1 May 2002Published inissue 1 May 1989https://pubs.acs.org/doi/10.1021/ar00161a005https://doi.org/10.1021/ar00161a005research-articleACS PublicationsRequest … ADVERTISEMENT RETURN TO ISSUEPREVArticleOrganotin cluster chemistryRobert R. HolmesCite this: Acc. Chem. Res. 1989, 22, 5, 190–197Publication Date (Print):May 1, 1989Publication History Published online1 May 2002Published inissue 1 May 1989https://pubs.acs.org/doi/10.1021/ar00161a005https://doi.org/10.1021/ar00161a005research-articleACS PublicationsRequest reuse permissionsArticle Views844Altmetric-Citations245LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts

Organotin(IV) complexes of amino acids and peptides

2001-05-01

Mala Nath , Sandeep Pokharia , Rakesh Yadav

119Sn-NMR Parameters

1985-01-01

Bernd Wrackmeyer

Direct Synthesis of Organotin Compounds. I. Di- and Tribenzyltin Chlorides

1961-02-01

Keiiti Sisido , Yosiyuki Takeda , Zirô Kinugawa

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDirect Synthesis of Organotin Compounds. I. Di- and Tribenzyltin ChloridesKeiiti Sisido, Yosiyuki Takeda, and Zirô KinugawaCite this: J. Am. Chem. Soc. 1961, 83, 3, 538–541Publication Date (Print):February … ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDirect Synthesis of Organotin Compounds. I. Di- and Tribenzyltin ChloridesKeiiti Sisido, Yosiyuki Takeda, and Zirô KinugawaCite this: J. Am. Chem. Soc. 1961, 83, 3, 538–541Publication Date (Print):February 1, 1961Publication History Published online1 May 2002Published inissue 1 February 1961https://pubs.acs.org/doi/10.1021/ja01464a008https://doi.org/10.1021/ja01464a008research-articleACS PublicationsRequest reuse permissionsArticle Views2775Altmetric-Citations287LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts

Preparation and Synthetic Utility of Some Organotin Derivatives of nucleosides

1974-01-01

Daniel Wagner , Julien P. H. Verheyden , J. G. Moffatt

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation and Synthetic Utility of Some Organotin Derivatives of nucleosidesDaniel Wagner, Julien P. H. Verheyden, and John G. MoffattCite this: J. Org. Chem. 1974, 39, 1, 24–30Publication … ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation and Synthetic Utility of Some Organotin Derivatives of nucleosidesDaniel Wagner, Julien P. H. Verheyden, and John G. MoffattCite this: J. Org. Chem. 1974, 39, 1, 24–30Publication Date (Print):January 1, 1974Publication History Published online1 May 2002Published inissue 1 January 1974https://pubs.acs.org/doi/10.1021/jo00915a005https://doi.org/10.1021/jo00915a005research-articleACS PublicationsRequest reuse permissionsArticle Views1547Altmetric-Citations259LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts

Perspectives in Coordination Chemistry

1993-02-01

Simon Woodward

Metal-dithiocarbamate complexes: chemistry and biological activity

2012-09-01

Graeme Hogarth

Dithiocarbamates are highly versatile mono-anionic chelating ligands which form stable complexes with all the transition elements and also the majority of main group, lanthanide and actinide elements. They are easily … Dithiocarbamates are highly versatile mono-anionic chelating ligands which form stable complexes with all the transition elements and also the majority of main group, lanthanide and actinide elements. They are easily prepared from primary or secondary amines and depending upon the nature of the cation can show good solubility in water or organic solvents. They are related to the thiuram disulfides by a one-electron redox process (followed by dimerisation via sulfursulfur bond formation) which is easily carried out upon addition of iodide or ferric salts. Dithiocarbamates are lipophilic and generally bind to metals in a symmetrical chelate fashion but examples of other coordination modes are known, the monodentate and anisobidentate modes being most prevalent. They are planar sterically non-demanding ligands which can be electronically tuned by judicious choice of substituents. They stabilize metals in a wide range of oxidation states, this being attributed to the existence of soft dithiocarbamate and hard thioureide resonance forms, the latter formally resulting from delocalization of the nitrogen lone pair onto the sulfurs, and consequently their complexes tend to have a rich electrochemistry. Tetraethyl thiuramdisulfide (disulfiram or antabuse) has been used as a drug since the 1950s but it is only recently that dithiocarbamate complexes have been explored within the medicinal domain. Over the past two decades anti-cancer activity has been noted for gold and copper complexes, technetium and copper complexes have been used in PET-imaging, dithiocarbamates have been used to treat acute cadmium poisoning and copper complexes also have been investigated as SOD inhibitors. Keywords: Anti-cancer, chelator, dithiocarbamate, metal complexes, thioureide, lipophilic.

DFT calculations on molecular structures, HOMO–LUMO study, reactivity descriptors and spectral analyses of newly synthesized diorganotin(IV) 2‐chloridophenylacetohydroxamate complexes

2019-06-27

Vineet Kumar Choudhary , ArvindKumar Bhatt , Dibyajit Dash +1 more

The gas‐phase‐optimized geometry of newly synthesized and characterized diorganotin(IV) 2‐chloridophenylacetohydroxamate complexes of composition [Me 2 Sn(HL) 2 ] (I) and [ n ‐Bu 2 Sn(HL) 2 ] (II) (where KHL … The gas‐phase‐optimized geometry of newly synthesized and characterized diorganotin(IV) 2‐chloridophenylacetohydroxamate complexes of composition [Me 2 Sn(HL) 2 ] (I) and [ n ‐Bu 2 Sn(HL) 2 ] (II) (where KHL = potassium 2‐chloridophenylacetohydroxamate (2‐ClPhAHK); [Me 2 Sn(2‐ClC 6 H 4 CH 2 CONHO) 2 ] (I) and [ n ‐Bu 2 Sn(2‐ClC 6 H 4 CH 2 CONHO) 2 ] (II) computed by B3LYP/6‐311++G(d,p) method has shown these to be distorted octahedral. Bonding through carbonyl and hydroxamic oxygen atoms (O, O coordination) has been inferred from a comparison of computed important bond lengths (CO, CN, and NO) of complexes with that of free ligand. The SnO bond lengths in complexes are suggestive of weak coordinate (through carbonyl CO) and strong covalent (through hydroxamic NO) bonding of the ligand. The magnitude of CSnC bond angles involving two methyl/ n ‐butyl groups is suggestive of cis‐conformation at tin metal. The thermodynamic parameters (G, H, S, E, Cv, and U) of complexes have been computed. From the energies of frontier molecular orbitals (HOMO–LUMO), the reactivity descriptors, namely, ionization potential, electron affinity, chemical potential (μ), hardness (η), softness (S), electronegativity (χ), and electrophilicity index (ω) have been calculated. The computed vibrational frequencies and 1 H NMR chemical shifts have substantiated the molecular structure of complexes. © 2019 Wiley Periodicals, Inc.

The Chemistry of the Dithioacid and 1, 1‐Dithiolate Complexes, 1968–1977

1979-01-01

D. Coucouvanis

This chapter contains sections titled: Introduction Dithioacids 1, 1-Dithiolates Reactions of Dithioacid and Dithiolate Complexes This chapter contains sections titled: Introduction Dithioacids 1, 1-Dithiolates Reactions of Dithioacid and Dithiolate Complexes

Organotin Compounds.

1960-10-01

Robert K. Ingham , Sanders D. Rosenberg , Henry Gilman

ADVERTISEMENT RETURN TO ISSUEPREVArticleOrganotin Compounds.Robert K. Ingham, Sanders D. Rosenberg, and Henry GilmanCite this: Chem. Rev. 1960, 60, 5, 459–539Publication Date (Print):October 1, 1960Publication History Published online1 May 2002Published inissue … ADVERTISEMENT RETURN TO ISSUEPREVArticleOrganotin Compounds.Robert K. Ingham, Sanders D. Rosenberg, and Henry GilmanCite this: Chem. Rev. 1960, 60, 5, 459–539Publication Date (Print):October 1, 1960Publication History Published online1 May 2002Published inissue 1 October 1960https://pubs.acs.org/doi/10.1021/cr60207a002https://doi.org/10.1021/cr60207a002research-articleACS PublicationsRequest reuse permissionsArticle Views3136Altmetric-Citations419LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts

Differential Subordinations

2000-01-03

Sanford S. Miller , Petru T. Mocanu

Der Chelateffekt

1952-12-01

G. Schwarzenbach

Abstract The chelate effect has been defined as the stability difference between a chelate complex and the corresponding complex with simple ligands. Starting from a simple picture, comprising the chelate … Abstract The chelate effect has been defined as the stability difference between a chelate complex and the corresponding complex with simple ligands. Starting from a simple picture, comprising the chelate effect as a gain in „translational entropy”︁, equations have been derived allowing to predict its magnitude. Most important are the size of the chelate ring and its strain. Complexes with tridentate, quadridentate‐ and hexadentate agents are also discussed.

Stereochemistry of coordination compounds

1996-12-01

Alexander von Zelewsky

Survey of Methods for the Elucidation of the Stereochemistry of Coordination Compounds. Theoretical Bases for the Coordination Geometries of Metal Ions. General Concepts in Topographic Stereochemistry of Coordination Compounds. Topographical … Survey of Methods for the Elucidation of the Stereochemistry of Coordination Compounds. Theoretical Bases for the Coordination Geometries of Metal Ions. General Concepts in Topographic Stereochemistry of Coordination Compounds. Topographical Stereochemistry of Mononuclear Coordination Units. Topographical Stereochemistry of Polynuclear Coordination Units. The Stereochemical Course of Reactions of Metal Complexes. Appendices. Index.

The chemistry of the thiol group.

1974-01-01

Saul Patai

The chemistry of the thiol group. , The chemistry of the thiol group. , کتابخانه دیجیتال جندی شاپور اهواز The chemistry of the thiol group. , The chemistry of the thiol group. , کتابخانه دیجیتال جندی شاپور اهواز

Opening the Coordination Sphere of Organotin Oxo Clusters through Vanadium Doping: from Precise Ligands Engineering to Tunable Lithography Reactivity

2025-06-20

Zhen Ni , Zuohu Zhou , Fangfang Liu +6 more | CCS Chemistry

Different type-coordinated Nickel(II)dithiophosphonato complexes: Synthesis, characterization, theoretical calculations, anticancer, antioxidant and antimicrobial studies

2025-06-18

Elif Bulat , Senem Akkoç , Mustafa Saçmacı +4 more | Journal of Molecular Structure

Diorganotin(IV) derivatives of Schiff bases derived from 4,5-dichloro-o-phenylenediamine and substituted salicylaldehydes: Synthesis, spectroscopic characterization, and DFT studies

2025-06-13

Vinod K. Yadav , Mala Nath | Inorganic Chemistry Communications

Structual Features of Polyfunctional Tetraarylantimony Carboxylates

2025-06-12

В.В. Шарутин | Reviews and Advances in Chemistry

Synthesis and biological activity of organotin complexes with 1-phenylcyclobutane-1-carboxylic acid

2025-06-06

Ying Cui , Yanlong Zhang , Qian Zhang +5 more | Journal of Molecular Structure

Synthesis, Crystal Structure, NMR, FT-IR, Hirshfeld Surface Analysis, and DFT Calculations of a New Noncentrosymmetric Tin(IV) Complex: Tetrachloridobis(dimethyl(2-methyl-4-oxopentan-2-yl)phosphonate)tin(IV)

2025-06-01

Aymen Wahbi , Maryam Niazi , Axel Klein +3 more | Journal of Molecular Structure

Mixed ligand triorganotin(IV) complexes based on oxygen and nitrogen heterocycles; exploration of the geometry and DNA binding potential

2025-06-01

Faareha Mazhar , Saba Naz , Sana Muzaffar +5 more | Journal of Molecular Structure

The crystal structure of bis{tetrakis(n-butyl)(μ-hydroxy)(2,3,5,6-tetrafluorobenzoate) (μ 3 -oxo)ditin(IV)}

2025-05-22

Lifang He , Biao Li , Xinbo Hou +4 more

Abstract C 46 H 76 F 8 O 8 Sn 4 , monoclinic, P 2 1 / n (no. 14), a = 13.2408(8) Å, b = 14.3875(9) Å, c = … Abstract C 46 H 76 F 8 O 8 Sn 4 , monoclinic, P 2 1 / n (no. 14), a = 13.2408(8) Å, b = 14.3875(9) Å, c = 15.9892(10) Å, β = 104.2490(10)°, V = 2952.3(3) Å 3 , Z = 2, R gt ( F ) = 0.0434, wR ref ( F 2 ) = 0.1148, T = 296 (2) K.

Crystal structure of bis(N,N,N-trimethylbutanaminium)tridecathiotrimolybdate(2−), (BuMe3N)2[Mo3S13]

2025-05-22

Kang–Woo Kim , Sunghyeon Kim

Abstract C 14 H 36 N 2 Mo 3 S 13 , monoclinic, P 2 1 / n (no. 14), a = 12.537(6) Å, b = 11.915(6) Å, c = … Abstract C 14 H 36 N 2 Mo 3 S 13 , monoclinic, P 2 1 / n (no. 14), a = 12.537(6) Å, b = 11.915(6) Å, c = 21.511(10) Å, β = 92.829(19)°, V = 3209(3) Å 3 , Z = 4, R gt ( F ) = 0.0332, w R ref ( F 2 ) = 0.0804, T = 223 K.

New Bioactive Coordination Polymers With Sulfosalicylic Acid: Synthesis, Characterization, Cytotoxicity, Antiradical Activity, and Adsorption Properties

2025-05-12

Normamatov Adkhamjon Sadullayevich , Haji Akber Aisa , Jiangyu Zhao +7 more

ABSTRACT Three new coordination polymers (CPs) formulated—[Cu(5‐SSA)Cu 2 (MEA) 2 ]·2H 2 O ( 1 ) (where 5‐SSA = 5‐sulfosalicylic acid, MEA = monoethanolamine); [Mn(SSA) 4 (H 2 O) 2 … ABSTRACT Three new coordination polymers (CPs) formulated—[Cu(5‐SSA)Cu 2 (MEA) 2 ]·2H 2 O ( 1 ) (where 5‐SSA = 5‐sulfosalicylic acid, MEA = monoethanolamine); [Mn(SSA) 4 (H 2 O) 2 ] n (MEA)(H 2 O) ( 2 ); [Na (SSA)]MEA ( 3 )—have been prepared and characterized by various spectroscopic techniques, elemental analysis, and single‐crystal X‐ray diffraction method. In 1 , coordination numbers of both copper ions are six with octahedron geometry. Further, this compound has complicated intermolecular H‐bonds in the polymeric structure that incorporate polymeric chains into 3‐D networks. Compound 2 also exhibits a polymeric bimolecular chain structure and features two intramolecular hydrogen bonds, both having the same graph‐set notation of S11(6) in the structure. Further, it is a supramolecular compound (clathrate or host‐guest complex) with inclusion of monoethanolamine (MEA) and water. Similarly, 2‐D polymeric layer structure of compound 3 with strong H‐bonds generated a 3‐D network. All these CPs were explored to study their cytotoxicity, antiradical activity, and adsorption properties. The cytotoxicity results indicate that compound 1 has acute toxicity in the mice, characterized by adverse effects and a significant mortality rate. Further, the average lethal dose (LD50) of the compounds 1–3 is estimated 546, 708, and 750 mg/kg, respectively. In case of antiradical activity, the CPs 2 and 3 have high antioxidant radical forming (ARF) capability. The adsorption of N₂ at low temperatures was evaluated using an Autosorb device and the measured P 0 value at 77 K was 101.3 kPa. In addition, the surface area of these compounds were also determined by Brunauer–Emmett–Teller (BET), which affirmed 311.9, 526.69, and 349.8781 m 2 /g for compounds 1–3 , respectively. The nitrogen adsorption data revealed that compounds 1 and 2 contain only mesopores, while compound 3 consists exclusively of micropores. Barrett–Joyner–Halenda (BJH) method was explored to determine mesopore volume with values of 0.171459, 0.808656, and 0.11969 cm 3 /g for compounds 1–3 , respectively.

Crystal structure of catena-poly[bis(isothiocyanate κ 1 N)-(μ 2-3,3ʹ-methylenebis(1-methyl-1,3-dihydro-2H-imidazole-2-thione)-κ 2 S:S′)-cobalt(II)], C11H12CoN6S4

2025-05-07

Shu-Yang Chen , Zhen-Zhen Shi , Jing Guo +3 more

Abstract C 11 H 12 CoN 6 S 4 , monoclinic, P 2 1 / c (no. 14), a = 14.2513(7) Å, b = 14.2335(8) Å, c = 8.4056(5) Å, … Abstract C 11 H 12 CoN 6 S 4 , monoclinic, P 2 1 / c (no. 14), a = 14.2513(7) Å, b = 14.2335(8) Å, c = 8.4056(5) Å, β = 98.147(2)°, V = 1687.83(16) Å 3 , Z = 4, R gt ( F ) = 0.0386, w R ref ( F 2 ) = 0.0867, T = 296 K.

Syntheses and Structures of Diorganotin Compounds Containing a Pentadentate Schiff Base Featuring Two Chiral Centers

2025-05-06

Tushar S. Basu Baul , Avishek Khatiwara , Andrew Duthie +3 more

A pentadentate Schiff base pro‐ligand, suitable for the generation of metal complexes containing two chiral centres, was synthesized. The pro‐ligand H2LMe was reacted with diorganotin precursors to yield the tin … A pentadentate Schiff base pro‐ligand, suitable for the generation of metal complexes containing two chiral centres, was synthesized. The pro‐ligand H2LMe was reacted with diorganotin precursors to yield the tin compounds [Me2Sn(LMe)] (1), [n‐Bu2Sn(LMe)] (2), [t‐Bu2Sn(LMe)] (3), [Bn2Sn(LMe)] (4), and [n‐Oct2Sn(LMe)] (5), where LMe = N‐[(E)‐1‐[6‐[(E)‐N‐(p‐tolylsulfonamido)‐C‐methylcarbonimidoyl]pyridin‐2‐yl]ethylideneamino]‐p‐tolylsulfonamide. Characterization in solution (NMR spectroscopy and high‐resolution mass spectrometry) and solid state (FT‐IR spectroscopy and single crystal X‐ray diffraction analysis) confirmed for each compound a seven‐coordinate C2SnN3O2 environment with pentagonal‐bipyramidal geometry. The 119Sn NMR spectra exhibited high field‐shifted signals, consistent with seven coordinated diorganotin Schiff base derivatives. In the solid state, the S(O)C6H4Me moieties in 1‐4 are mutually anti‐oriented, resulting in molecular topologies similar to those found in Jacobsen’s catalyst. In addition to van der Waals interactions, the molecular arrangements in the 3D solid‐state structures are primarily controlled by C−H⋅⋅⋅O hydrogen bonds, along with C−H⋅⋅⋅N, C−H⋅⋅⋅π, and π⋅⋅⋅π interactions giving macrocyclic or cage‐type assemblies.

Selenite‐Directed Organotin‐Oxo Macrocycles for Nanolithography

2025-05-05

Juan Wang , Ming‐Bu Luo , Zhixiang Wei +4 more

The systematic design of organotin‐oxo macrocycles with enhanced extreme ultraviolet (EUV) photon‐harvesting capability and sub‐50 nm lithographic resolution remains a pivotal challenge in advancing nanofabrication technologies. Herein, we present a … The systematic design of organotin‐oxo macrocycles with enhanced extreme ultraviolet (EUV) photon‐harvesting capability and sub‐50 nm lithographic resolution remains a pivotal challenge in advancing nanofabrication technologies. Herein, we present a novel series of polynuclear nbutyltin‐oxygen macrocycles—Sn8, Sn12‐α, Sn12‐β, and Sn12Fe18—constructed through selenite ligand‐driven supramolecular assembly. Among these, Sn12‐α demonstrated exceptional electron beam lithography (EBL) performance, achieving a critical dimension resolution of 50 nm at a low dose of 50 μC·cm‐2, attributed to its elevated Sn/Se content, compact molecular architecture (diameter, 1.5 nm), and excellent film‐forming ability (surface roughness, 0.59 nm). By replacing conventional carboxylate ligands with inorganic selenite, this study addresses longstanding limitations in structural versatility and EUV absorption efficiency inherent to traditional organotin‐oxo systems. These findings establish a paradigm for engineering metal‐oxide photoresists through ligand‐driven cluster dimensionality control, offering a scalable pathway to high‐sensitivity, high‐resolution patterning for next‐generation semiconductor manufacturing.

Synthesis, characterization, and antidiabetic assay of triorganotin (IV) azo-carboxylates derived from 3-hydroxy-2-naphthoic acid and amino aryls: crystal structure and Hirshfeld surface analysis of monomeric triphenyltin (IV) compound

2025-05-05

Amna Devi , Kirandeep Singh , Keisham Surjit Singh +3 more

Synthesis, spectroscopic characterization, X-ray structure elucidation, and in-vitro biological screening of new organotin(IV) derivatives of N-methyl-4-(chloromethyl)benzohydorxamic acid

2025-05-01

Ali Irshad , Naqeebullah Khan , Sammer Yousuf +3 more

Surface electronic and steric effects of jamesonite and their influence on the adsorption of diisobutyldithiophosphinate

2025-05-01

Weiyong Cui , Qiurong Long , Jian Hua Chen +3 more

Tuning DSSC Performance via Phenolic -OH Isomerism in Ni(II) Dithiocarbamate Complexes

2025-05-01

Madhav Raj Jayswal , Omoding Daniel , Aparna Kushwaha +6 more

Synthesis of two new Sn (IV) carboxylate complexes: Crystal structures, density functional theory and Hirshfeld surface analysis computation, antibacterial, antifungal, and bioinformatics potential determination

2025-05-01

Mohammed Dahmani , Abderrahim Titi , Soumia Kadri +7 more

Single-crystal structure feature of a new polymer based on Bi(III) as an antibacterial agent

2025-05-01

Zohreh Razmara , Václav Eigner , Michal Dušek

Synthesis, crystal structure, DNA interaction and anticancer activity of novel organotin cinnamate complexes

2025-05-01

Jingni Wang , Mingdeng Wei , Zhiyu Pan +4 more

Pyrazole-thermal-assisted assembly of the largest N-rich tin-oxo clusters with tunable broadband nonlinear optical limiting effect

2025-05-01

Peng Li , Qianru Sun , Chenbo Yu +7 more | Chinese Chemical Letters

Predicting and controlling the second-order NLO response in a new class of multi-decker sandwich clusters {µ-B2H2S2Pd(Cl)2}-(CoCp) n (n = 2 to 5)

2025-05-01

Meriem Zaidi , Douniazed Hannachi , Djamila Samsar +2 more | Journal of Photochemistry and Photobiology A Chemistry

Synthesis, Characterization and Study of Biological Activity of Some New Schiff Bases

2025-04-30

Ibtisam Khalifa Jassim , Omar AbdulMohsin

In the present study, ( Schiff's bases 6a - 6e) and (new amids derivatives 6f - 6j) have been synthesized . The glutaroyl chloride(2) has been prepared by the reacting … In the present study, ( Schiff's bases 6a - 6e) and (new amids derivatives 6f - 6j) have been synthesized . The glutaroyl chloride(2) has been prepared by the reacting of glutaric acid and thionyl chloride in presence of (DMF) . The new compound bis(4-formylphenyl) glutarate (3) has been Synthesized from reaction of one mole of glutaroyl chloride and two moles of 4-hydroxybenzaldehyde . Compound 4,4'-(glutaroylbis(oxy))dibenzoic acid (4) was Synthesized from one mole of glutaroyl chloride and two moles of 4-hydroxybenzoic acid, while compound bis(4-(chlorocarbonyl)phenyl) glutarate (5) was prepared from 4,4'-(glutaroylbis(oxy))dibenzoic acid and Thionyl chloride . Then Schiff's bases 6a - 6e that prepared from the reaction of compound no:3 and derivatives amine in EtOH. Amids 6f - 6j were synthesized from the reaction of previous acid chloride (5) and derivatives amine in py. and DMF . All the prepared compounds have been characterized as usual by the spectral methods (which including FT-IR , H-NMR (6a , 6d and 6i) besides TLC . Techniques and the melting points were recorded . Then the antibacterial studies were checked against two types of bacterial . we discovered that the compounds 6a, 6d, 6h, and 6i showed high growth against all bacteria of E_ coli and staphylococcus aureus basides psudomonas aeruginosa .

Investigation of Optical Properties and Biological Activities of Antimony(III) Halide Templated by 2,2′-Bipyridinium for Optoelectronic Devices

2025-04-29

Eya Toumi , Sameh Sellami , Nour Elleuch +3 more

This study provides a comprehensive analysis of the optical properties of hybrid compound [C10H10N2]2(SbCl4)2·2Cl, using diffuse reflectance spectroscopy. The measurements were conducted over a 200-1100 nm spectral range. The optical … This study provides a comprehensive analysis of the optical properties of hybrid compound [C10H10N2]2(SbCl4)2·2Cl, using diffuse reflectance spectroscopy. The measurements were conducted over a 200-1100 nm spectral range. The optical band gap, calculated using absorption, reflectance, and Tauc method, was an indirect band gap of approximately 2.28 eV. In addition, a high Urbach energy of 578 meV indicates a notable density of localized states in the material. Optical constants, such as skin depth, were studied as a function of wavelength, providing valuable information on the performance of the compound in the UV, visible, and near-infrared regions. The extinction coefficient highlighted the efficiency of the material in absorbing incident light. A detailed analysis of the refractive index and optical conductivity provided further insights into its optical behavior. These results highlight the potential of [C10H10N2]2(SbCl4)2·2Cl for optoelectronic applications, especially in ultraviolet- and visible-light-sensitive devices such as photodetectors and sensors. In addition, biological activity assessments demonstrated that the compound possesses moderate antibacterial properties, suggesting promising applications in biomedical fields, including antimicrobial coatings and pharmaceutical formulations.

Synthesis and Spectral Characterization of Telluracyclohexane - 1 - Cinnamato - 1 Dithiocarbamates

2025-04-29

Hrsikesa Pankaj

The synthesis and spectral studies of new monothioligand derivatives of 1, 1, 2, 3, 4, 5, 6-heptahydro-1, 1-dicinnamato telluranes [C5H10Te(C6H5CH=CHOCO)2] have been given in the present investigation. The synthesis of … The synthesis and spectral studies of new monothioligand derivatives of 1, 1, 2, 3, 4, 5, 6-heptahydro-1, 1-dicinnamato telluranes [C5H10Te(C6H5CH=CHOCO)2] have been given in the present investigation. The synthesis of C5H10TeOOCCH=CHC6H5R [R=S2CN(C2H5)2, S2CNC4H8O, S2CNC5H10 and S2CNHC6H5] was done and they have been characterized through IR, (1H, 13C, ) NMR spectral data.

Nickel(II)-dithiocarbamate Mixed Ligand Complexes: Synthesis, Characterization and Anti-bacterial Properties

2025-04-28

Tarek A. Yousef , Ahmed S. Al‐Janabi , Saad Shaaban +1 more

Six homoleptic (1 and 2) and heteroleptic (3-6) nickel(II) chelates comprising dithiocarbamate and triphenylphosphine ligands were prepared and elucidated by various spectroscopic analysis. The dithiocarbamate ligand was bonded in a … Six homoleptic (1 and 2) and heteroleptic (3-6) nickel(II) chelates comprising dithiocarbamate and triphenylphosphine ligands were prepared and elucidated by various spectroscopic analysis. The dithiocarbamate ligand was bonded in a bidentate chelation manner via the sulfur atoms to furnish a square planar geometry. The antibacterial activity of mixed Ni(II) dithiocarbamate and triphenylphosphine ligand chelates was obtained against three bacterial strains. Among the complexes, the heteroleptic nickel(II) chelates comprising mixed dithiocarbamate and triphenylphosphine ligands (6) manifested the highest antibacterial activity against all tested bacteria. Our study demonstrated that the heteroleptic nickel(II) chelates might be further elaborated and improved for enhanced antimicrobial applications.

Synthesis, Characterization and Density Functional Theory (DFT) Studies of S-benzyl β-N-(4-NN bischloroaminophenylmethylene) dithiocarbazate

2025-04-28

R. P. Singh , P. K. Shrivastava , Mahendra Singh Bhadauriya

This research focused on the synthesis and analysis of a novel compound, S-benzyl β-N-(4-NN bischloroaminophenylmethylene)dithiocarbazate (SBCDTC). A range of analytical techniques, including mass spectrometry, nuclear magnetic resonance (NMR), infrared spectroscopy … This research focused on the synthesis and analysis of a novel compound, S-benzyl β-N-(4-NN bischloroaminophenylmethylene)dithiocarbazate (SBCDTC). A range of analytical techniques, including mass spectrometry, nuclear magnetic resonance (NMR), infrared spectroscopy (IR), and density functional theory (DFT) quantum chemical calculations, were employed to explore its structure and properties. The molecular structure of SBCDTC was optimized using the DFT method with the 6-311G(2d,2p) basis set. Vibrational frequencies were also calculated at the same theoretical level for comparison with experimental infrared data. Furthermore, the electrostatic surface potential and electronic properties of the molecule were analyzed to gain insights into its electronic structure and potential reaction sites. A comparison between experimental results from the spectroscopic techniques and the theoretical calculations showed good agreement, validating the computational approach. This study provided a comprehensive understanding of the structural and electronic properties of SBCDTC through a combined experimental and theoretical investigation.

The crystal structure of bepotastine besilate, C27H31ClN2O6S

2025-04-25

Fengfeng Wang , Lin Luan , Xiaowen Hu +2 more

Abstract C 27 H 31 ClN 2 O 6 S, triclinic, P 1 (no. 1), a = 8.0223(3) Å, b = 9.8143(3) Å, c = 10.2307(4) Å, α = 88.308(3)°, … Abstract C 27 H 31 ClN 2 O 6 S, triclinic, P 1 (no. 1), a = 8.0223(3) Å, b = 9.8143(3) Å, c = 10.2307(4) Å, α = 88.308(3)°, β = 69.000(3)°, γ = 65.970(3)°, V = 680.39(5) Å 3 , Z = 1, R gt ( F ) = 0.0406, wR ref ( F 2 ) = 0.1165, T = 297 K.

Cobalt Mediated S‐S Bond Formation: Crystal Structure and Spectroscopic Properties of [Co2(S2)2(tren)2]3[SbS4]2 · 21.5 H2O Containing a Co2S4 Heterocycle

2025-04-23

Felix Danker , Henning Lühmann , Christian Näther +2 more

The reaction of an aqueous solution of Na3SbS4·9H2O with a Co(II) salt dissolved in acetonitrile in the presence of tris(2‐aminoethyl)amine afforded crystallization of [Co2(S2)2(tren)2]3[SbS4]2 · 21.5 H2O which contains in … The reaction of an aqueous solution of Na3SbS4·9H2O with a Co(II) salt dissolved in acetonitrile in the presence of tris(2‐aminoethyl)amine afforded crystallization of [Co2(S2)2(tren)2]3[SbS4]2 · 21.5 H2O which contains in situ formed S22‐ anions and Co(III) cations formed by oxididation of Co(II). The Co(III) centers of the two independent [Co2S4]2+ cores are complemented by the tetradentate amine molecules and distorted CoN4S2 octahedra are formed. Charge compensation is achieved by the tetrahedral [SbS4]3‐ anions. The two intriguing experimental findings, i.e. the oxidation of Co(II) and the formation of S22‐ dumbbells, are explained on the basis of the detailed calculation of the reaction mechanism indicating S‐S bond formation by radical coupling of two terminal thiyl ligands. The bands of the Co2S4 heterocycle in the IR and Raman spectra could also be assigned with DFT calculations.

Integrated Experimental and Theoretical Studies of Organotin(IV)‐Hydrazone Complexes: Synthesis, Structural Elucidation, Computational Insights, and Antimicrobial Activity

2025-04-22

Pinki Barwa , Sonika Asija , Kashmiri Lal +4 more

In the search of some new therapeutic agents against microbial infections, a series of pentacoordinated diorganotin(IV) complexes [R2SnL1‐2] were prepared by reacting 2‐(4‐chloro‐2‐methylphenoxy)acetohydrazide and 3‐ethoxy/5‐nitrosalicylaldehyde with R2SnCl2 (R = Me, … In the search of some new therapeutic agents against microbial infections, a series of pentacoordinated diorganotin(IV) complexes [R2SnL1‐2] were prepared by reacting 2‐(4‐chloro‐2‐methylphenoxy)acetohydrazide and 3‐ethoxy/5‐nitrosalicylaldehyde with R2SnCl2 (R = Me, n‐Bu, Et, Ph). Various spectral techniques, including NMR (1H, 13C, 119Sn), FT‐IR, and HRMS, confirmed their pentacoordinated geometry of complexes, further validated by Single Crystal X‐ray diffraction (SC‐XRD) analysis of complex 3 [Me2SnL1] that displays monoclinic crystal system with a deformed square‐pyramidal geometry around the tin metal center, with two methyl groups, Nazomethine, Ophenolic, and Oenolic atoms. Furthermore, the antimicrobial study shows that all synthesized compounds (1‐10) exhibit significant activity against microbial infections. Among them, complexes 6 and 10 demonstrated the highest efficacy. Findings confirmed that biological activity of complexes surpasses that of ligands (1, 2) itself, with complex 6 [Ph2SnL1] demonstrating highest efficiency in controlling microbial infections with MIC values of 0.0049 µmol/mL against C. albicans and E. coli and comparable to standard drugs such as Ciprofloxacin and Fluconazole. To validate the enhanced antimalarial potential of the ligand 1 and its complexes (3‐6), Density functional theory (DFT) calculations were performed on all synthesized compounds.

Luminescent Detection of Photomagnetic Effect in a Near‐Infrared Emissive Neodymium(III)–Octacyanidotungstate(IV) Framework

2025-04-22

Jakub J. Zakrzewski , Robert Jankowski , Maja Romanowska +5 more

Photomagnetic materials form a class of magnetic systems, in which light irradiation changes their magnetization. Photomagnetic behavior is often observed in spin‐transition materials, including spin‐crossover complexes, and sometimes it leads … Photomagnetic materials form a class of magnetic systems, in which light irradiation changes their magnetization. Photomagnetic behavior is often observed in spin‐transition materials, including spin‐crossover complexes, and sometimes it leads to magnetic ordering. Photo‐induced magnetization can affect different physical properties, including second harmonic generation. Still, despite a growing number of luminescent spin‐crossover systems, the simultaneous switching of both magnetism and luminescence was not explored. In this regard, we present systematic studies for a novel coordination polymer composed of anionic NdIII–[WIV(CN)8]4– layers, crystallizing with chiral organic cations embedded in the interlayer space. Not only we observe and theoretically rationalize near‐infrared emission of NdIII centers sensitized by [WIV(CN)8]4– units, but we also found a plausible pathway to track the photomagnetic effect throughout the analysis of the Nd3+ excitation spectra and their temperature dependence. The observed thermally reversible effects in luminescence were correlated with the results of photomagnetic studies, providing an attractive pathway to monitor the light‐induced magnetization changes through a photoluminescent read‐out.

4-[2-(Chlorodiphenylstannyl)phenyl]-4-hydroxybutan-2-one

2025-04-09

Adrian‐Alexandru Someşan , Richard A. Varga

An aldol condensation reaction between [2-(O=CH)C6H4]SnPh2Cl and acetone gave [2-{CH3C(=O)CH2(OH)CH}C6H4]SnPh2Cl (1). The compound was characterized in a solution using multinuclear NMR spectroscopy and HR-MS spectrometry and in a solid state … An aldol condensation reaction between [2-(O=CH)C6H4]SnPh2Cl and acetone gave [2-{CH3C(=O)CH2(OH)CH}C6H4]SnPh2Cl (1). The compound was characterized in a solution using multinuclear NMR spectroscopy and HR-MS spectrometry and in a solid state using IR spectroscopy and single-crystal X-ray diffraction. The molecular structure revealed the presence of both enantiomers in the crystal.

Diorganotin(IV) Complexes of Organoselenolato Ligands with Pyrazole Moieties—Synthesis, Structure and Properties

2025-04-07

Melinda Tamas , Roxana A. Butuza , Monica Dan +1 more

Diorganotin(IV) compounds of types RR′Sn(SeCH2CH2pz)2 [R = R′ = nBu (2), Ph (3); R = 2-(Me2NCH2)C6H4, R′ = Me (4), nBu (5), Ph (6)], and RR′SnX(SeCH2CH2pz) [R = 2-(Me2NCH2)C6H4, R′ … Diorganotin(IV) compounds of types RR′Sn(SeCH2CH2pz)2 [R = R′ = nBu (2), Ph (3); R = 2-(Me2NCH2)C6H4, R′ = Me (4), nBu (5), Ph (6)], and RR′SnX(SeCH2CH2pz) [R = 2-(Me2NCH2)C6H4, R′ = nBu, X = Cl (7), R′ = Me, X = SCN (9)], as well as [2-(Me2NCH2)C6H4](Me)Sn(NCS)2 (8), and the tin(II) Sn(SeCH2CH2pz)2 (10) (pz = pyrazole), were prepared by salt metathesis reactions between the appropriate diorganotin(IV) dichloride or dipseudohalide and Na[SeCH2CH2pz], with the latter freshly prepared from (pzCH2CH2)2Se2 (1). The solution behaviour of these compounds was investigated by multinuclear NMR (1H, 13C, 77Se, 119Sn), and the NMR spectra showed the existence of the Se–Sn bonds in solution. Compounds 4 and 5 showed decomposition in a solution of chlorinated solvents with the formation of selenium bridged dimeric species of type {[2-(Me2NCH2)C6H4](R’)Se}2 [R′ = Me (4-a), nBu (5-a)], as the single-crystal X-ray diffraction studies revealed, in contrast with compound 9, for which a monomeric structure was observed with the desired composition. The solid state structures of 4-a, 5-a, 8, and 9 revealed N→Sn intramolecular coordination of the nitrogen atom in the pendant CH2NMe2 arm. The NMR spectra suggested such a coordination at room temperature only for compound 7.