Preparation, Properties, and Related Compounds
It is prepared by thermal decomposition of VCl3, which leaves a residue of VCl2:
- 2 VCl3 → VCl2 + VCl4
VBr2 and VI2 are structurally and chemically similar to the dichloride. All have the d3 configuration, with a quartet ground state, akin to Cr(III).
Vanadium dichloride is a powerful reducing species, being able to reduce sulfoxides to sulfides, organic azides to amines, as well as reductively coupling some alkyl halides. VCl2 dissolves in water to give the hexaaquo ion 2+. Evaporation of such solutions produces crystals of Cl2.
Read more about this topic: Vanadium(II) Chloride
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