A non-oxo methanolate-bridged divanadium(IV) complex with tris(2-sulfanidylphenyl)phosphane ligands: synthesis, structural characterization and magnetic investigation
| Autor: | Hua Fen Hsu, Hong Ming Wu, Chia Lin Su, Gene-Hsiang Lee, Ya Ho Chang |
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| Rok vydání: | 2016 |
| Předmět: |
Models
Molecular Trimethylsilyl Phosphines Inorganic chemistry Vanadium chemistry.chemical_element Crystal structure Crystallography X-Ray Ligands 010402 general chemistry 01 natural sciences Inorganic Chemistry Metal chemistry.chemical_compound Paramagnetism Coordination Complexes Materials Chemistry Molecule Physical and Theoretical Chemistry Triplet state 010405 organic chemistry Condensed Matter Physics Amavadin 0104 chemical sciences Crystallography chemistry visual_art Magnets visual_art.visual_art_medium Sulfur |
| Zdroj: | Acta Crystallographica Section C Structural Chemistry. 72:416-420 |
| ISSN: | 2053-2296 |
| DOI: | 10.1107/s2053229616005222 |
| Popis: | Vanadium chemistry is of interest due its biological relevance and medical applications. In particular, the interactions of high-valent vanadium ions with sulfur-containing biologically important molecules, such as cysteine and glutathione, might be related to the redox conversion of vanadium in ascidians, the function of amavadin (a vanadium-containing anion) and the antidiabetic behaviour of vanadium compounds. A mechanistic understanding of these aspects is important. In an effort to investigate high-valent vanadium–sulfur chemistry, we have synthesized and characterized the non-oxo divanadium(IV) complex salt tetraphenylphosphonium tri-μ-methanolato-κ6O:O-bis({tris[2-sulfanidyl-3-(trimethylsilyl)phenyl]phosphane-κ4P,S,S′,S′′}vanadium(IV)) methanol disolvate, (C24H20P)[VIV2(μ-OCH3)3(C27H36PS3)2]·2CH3OH. Two VIVmetal centres are bridged by three methanolate ligands, giving aC2-symmetric V2(μ-OMe)3core structure. Each VIVcentre adopts a monocapped trigonal antiprismatic geometry, with the P atom situated in the capping position and the three S atoms and three O atoms forming two triangular faces of the trigonal antiprism. The magnetic data indicate a paramagnetic nature of the salt, with anS = 1 spin state. |
| Databáze: | OpenAIRE |
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