Magnetism, electronic spectra, and structure of transition metal alkoxides. IX. Vanadium(III)chloromethoxides

Abstract

The compounds VCl(Ome2 (1), VCl(OMe)2,MeCOMe (2), VCl(OMe)2,MeOH (3), and VCl2(OMe),2MeOH (4) were prepared. From magnetic and other physical measurements it is concluded that in (1) the vanadium atoms form trimeric clusters which associate through chlorine bridges to form an infinite lattice. Similar basic units are proposed for (2), but separated from each other by solvent molecules. Two forms of (3) were isolated from the same solution; a soluble trimeric form (A) for which a structure similar to that of (2) is suggested, and an insoluble tetrameric form (B) where the vanadium atoms are situated at the corners of a rhombus. For (4) a structure involving three octahedra, sharing corners (methoxy bridges), is suggested.