Oxovanadium(IV) complexes with aromatic aldehydes.

J C Pessoa; I Cavaco; I Correia; I Tomaz; T Duarte; P M Matias

doi:10.1016/s0162-0134(00)00037-4

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PubMed · 10885461

Oxovanadium(IV) complexes with aromatic aldehydes.

J C Pessoa·I Cavaco·I Correia·I Tomaz·T Duarte·P M Matias

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Abstract

The synthesis, structure and spectroscopic properties of complexes with the formula [V(IV)O(dsal)2(H2O)], where Hdsal = salicylaldehyde, o-vanillin and 3-ethoxysalicylaldehyde, are presented. The crystal and molecular structures of [V(IV)O(o-van)2(H2O)] (1) (o-Hvan = o-vanillin = 3-methoxysalicylaldehyde) is studied by single-crystal X-ray diffraction. Each molecule exhibits an octahedral geometry with the two o-van ligands coordinated cis to the V(IV)O2+ group. 1 is the first example of a structurally characterized vanadium complex involving O(aldehyde) as the donor atom and this enables a comparison between the bonding characteristics and the contributions of O(aldehyde), O(amide), O(carboxylate) and O(ketone) (in acetylacetone) to the parallel hyperfine coupling constant in VOL2 complexes.

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Aldehydes Crystallography, X-Ray Electron Spin Resonance Spectroscopy Hydrocarbons, Aromatic Models, Molecular Molecular Conformation Spectrophotometry, Infrared Spectrophotometry, Ultraviolet Structure-Activity Relationship Vanadates Comparative Study Journal Article Research Support, Non-U.S. Gov't

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J C Pessoa, I Cavaco, I Correia, I Tomaz, T Duarte, P M Matias. 2000-05-30. Oxovanadium(IV) complexes with aromatic aldehydes.. https://doi.org/10.1016/s0162-0134(00)00037-4

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