Vanadium 1995

Page, E. M.; Wass, Sherilyn A.

doi:10.1016/s0010-8545(97)00031-3

Cited by 7 publications

(2 citation statements)

References 145 publications

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“…Oxovanadium(IV) complexes have a square pyramidal geometry with apical oxygen and the vanadium atom lying above the plane defined by the donor atoms of the equatorial ligands. These square pyramidal complexes generally exhibit strong tendency to remain five coordinate [7,8]. The coordination chemistry of vanadium(V) compounds is dominated by oxo complexes, containing the VO 3+ or the VO 2+ moiety [9].…”

Section: Introductionmentioning

confidence: 99%

Stability of Vanadium Chalcone Complexes

Borge¹,

Patil²

2020

Stability and Applications of Coordination Compounds

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The vanadyl(IV) complexes of substituted chalcones were prepared by refluxing vanadyl sulphate with different substituted chalcones in ethanoic medium. The chalcones were prepared with different aromatic aldehydes like benzaldehyde, hydroxy benzaldehyde, nitro benzaldehyde and chloro benzaldehyde. The synthesized Vanadium complexes were characterized by different spectral techniques. The IR spectral studies revealed that the chalcone derivatives are bidentate ligand. Magnetic studies, electron spin resonance and UV studies suggest that the complexes are in square pyramidal geometry. Conductance measurements suggest that all complexes are non-electrolyte in DMF. The thermal study explained the stability of complex and its decomposition. The synthesized ligand and metal complexes were screened for their antibacterial activity against E. coli and Staphylococcus aureus bacterial strains and for antifungal activity against P. notatum.

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Section: Introductionmentioning

confidence: 99%

Stability of Vanadium Chalcone Complexes

Borge¹,

Patil²

2020

Stability and Applications of Coordination Compounds

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“…Interest in the coordination chemistry of vanadium has been growing rapidly over the past several years, with review articles − and special journal issues being dedicated entirely to its study. The heightened interest in vanadium coordination compounds stems from its importance in biological systems, which is only now beginning to be appreciated.…”

Section: Introductionmentioning

confidence: 99%

Vanadium Complex of 2-(2‘-Pyridyl)-4,5-dicyanoimidazole Showing Spermicidal and Cytotoxic Properties

Less¹,

Ockwig²,

Rasmussen³

et al. 2006

Inorg. Chem.

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Two complexes having the formulas VO(DCIPy)2(H2O).1.5H2O and VO(DCIPy)2(H2O).2MeOH have been synthesized and characterized (DCIPy = 2-(2'-pyridyl)-4,5-dicyanoimidazolato). The methanol solvated species has been studied by X-ray diffraction, and single crystals form in the space group P2(1)/n. The hydrated species was studied by electron paramagnetic resonance spectroscopy in both the solid state and in a frozen solution, and the values of A( parallel) examined using the additivity relationship. The hydrated species was shown to exhibit both spermicidal and cytoxic properties.

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Vanadium: Inorganic & Coordination ChemistryBased in part on the article Vanadium: Inorganic & Coordination Chemistry by Elizabeth M. Page & Sherilyn A. Wass which appeared in the Encyclopedia of Inorganic Chemistry, First Edition .

Richards

2005

Encyclopedia of Inorganic Chemistry

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The chemistry of vanadium and its complexes with various ligands is reviewed, following the format used in the corresponding article in the first edition of this Encyclopedia. The article begins with an update of the element itself. This is followed by a description of the binary compounds formed with hydride, halide, oxide, chalcogenide, nitride, and phosphide ligands. Compounds formed with carbide ligands are briefly mentioned, but thereafter carbon‐donor ligands are not included in this article. Then follows a review of the coordination chemistry of vanadium, which, after a brief introduction, is grouped into sections according to the oxidation state of vanadium in the compounds under discussion. The first section describes compounds in low oxidation states, [vanadium(−1), vanadium(0), and vanadium(1)], in which nitrogen‐donor ligands such as N 2 and NO and tertiary phosphine ligands are prominent. The second section describes the coordination chemistry of vanadium(II). This section is subdivided according to the donor atom of the various ligands that bind the metal, that is, oxygen, nitrogen, and phosphorus ligands and other ligand types, such as halides. Vanadium(III) coordination complexes comprise the next section, which is subdivided according to oxygen ligands, nitrogen ligands, sulfur ligands, and halide and other ligands. It is to be noted that in general the compounds that have thus far been described tend to be oxidized rather easily to compounds of higher oxidation states. The coordination chemistry of vanadium(IV), which comprises the next section, is dominated by the very stable VO 2+ (vanadyl) group and a separate subsection is devoted to coordination compounds that contain this grouping. The other subsections describe nonoxo complexes and halide, nitrogen, and sulfur and selenium ligands; the thiovanadyl group, VS 2+ is included in the last subsection. Oxygen‐donor ligands are also prominent in the chemistry of the highest oxidation state of vanadium(V), whose coordination chemistry is covered in the final section. Thus, separate subsections describe the coordination chemistry of the VO 3+ group, the VO 2 + unit, and peroxo‐complexes. The remaining subsections describe nonoxo complexes, nitrogen, sulfur, and selenium ligands. A feature of the development of vanadium chemistry during the years since the original article appeared has been the very large increase in the number of coordination complexes that have been prepared and structurally characterized. The content and relative sizes of the subsections of this article and the figures that are included reflect this trend.

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Vanadium 1995

Cited by 7 publications

References 145 publications

Stability of Vanadium Chalcone Complexes

Stability of Vanadium Chalcone Complexes

Vanadium Complex of 2-(2‘-Pyridyl)-4,5-dicyanoimidazole Showing Spermicidal and Cytotoxic Properties

Vanadium: Inorganic & Coordination ChemistryBased in part on the article Vanadium: Inorganic & Coordination Chemistry by Elizabeth M. Page & Sherilyn A. Wass which appeared in the Encyclopedia of Inorganic Chemistry, First Edition .

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