The preparation and spectral properties of complex oxochlorovanadates(IV)

Abstract

A variety of oxochloro-complexes of vanadium(IV) have been prepared by precipitation from aqueous alcoholic media. They are of the general types M^I₂VOCl₄,xH₂O (M^I= pyH⁺, quinH⁺, isoquinH⁺, NH₄⁺, K⁺, and Cs⁺; x= 0, 1, or 2) and M^IVOCl₃,xH₂O (M^I= Me₄N⁺, Et₄N⁺, quinH⁺; x= 0, 1·5, 2, or 3). The infrared spectra indicate that both types of complex (except where M^I= K⁺ or NH₄⁺) contain a vanadium–oxygen multiple bond. The diffuse-reflectance spectra of the complexes are reported.