An eight-coordinate vanadium thiolate complex with charge delocalization between V(V)-thiolate and V(IV)-thiyl radical forms
| Autor: | Chia Ling Su, Hua Fen Hsu, Yi-Hung Liu, Ru Rong Wu, Ju-Hsiou Liao, Ya Ho Chang |
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| Rok vydání: | 2011 |
| Předmět: |
Models
Molecular Magnetic Resonance Spectroscopy Vanadium Compounds Stereochemistry Coordination number Vanadium chemistry.chemical_element Charge (physics) General Chemistry Electronic structure Resonance (chemistry) Crystallography X-Ray Biochemistry Catalysis Crystallography Delocalized electron Colloid and Surface Chemistry chemistry Sulfhydryl Compounds Vanadates |
| Zdroj: | Journal of the American Chemical Society. 133(15) |
| ISSN: | 1520-5126 |
| Popis: | A six-coordinate oxovanadium(V) thiolate complex and an eight-coordinate non-oxovanadium thiolate complex, [PPh(4)][VO(PS3'')(OCH(3))] (1) and [NEt(4)][V(PS3'')(2)] (2) (PS3'' = P(C(6)H(3)-3-Me(3)Si-2-S)(3)(3-)), respectively, have been isolated and structurally characterized. The former belongs to a limited collection of oxovanadium(V) thiolate complexes. The latter has an unusual coordination number of eight. More importantly, its consensus electronic structure derived from its spectroscopic data should be considered as the resonance forms of V(V)-thiolate and V(IV)-thiyl radical species. This implies that V(IV)-thiyl radical can maintain a stable presence in biological systems. |
| Databáze: | OpenAIRE |
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