Vanadium(II) chloride is the

inorganic compound In chemistry, an inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as '' inorganic chemist ...

with the

formula In science, a formula is a concise way of expressing information symbolically, as in a mathematical formula or a ''chemical formula''. The informal use of the term ''formula'' in science refers to the general construct of a relationship betwee ...

VCl₂, and is the most reduced vanadium chloride. Vanadium(II) chloride is an apple-green solid that dissolves in water to give purple solutions.

Preparation, properties, and related compounds

Solid VCl₂ is prepared by thermal decomposition of VCl₃, which leaves a residue of VCl₂:Young, R. C.; Smith, M. E. "Vanadium(II) Chloride" Inorganic Syntheses, 1953, volume IV, page 126-127. :2 VCl₃ → VCl₂ + VCl₄ VCl₂ dissolves in water to give the purple hexaaquo ion (H₂O)₆sup>2+. Evaporation of such solutions produces crystals of (H₂O)₆l₂. Vanadium dichloride is used as a specialty reductant in

organic chemistry Organic chemistry is a subdiscipline within chemistry involving the scientific study of the structure, properties, and reactions of organic compounds and organic materials, i.e., matter in its various forms that contain carbon atoms.Clayden, J.; ...

. As an aqueous solution, it converts cyclohexylnitrate to

cyclohexanone Cyclohexanone is the organic compound with the formula (CH2)5CO. The molecule consists of six-carbon cyclic molecule with a ketone functional group. This colorless oily liquid has an odor reminiscent of acetone. Over time, samples of cyclohexan ...

. It reduces

phenyl azide Phenyl azide is an organic compound with the formula C6H5N3. It is one of the prototypical organic azides. It is a pale yellow oily liquid with a pungent odor. The structure consists of a linear organic azide, azide substituent bound to a phenyl ...

into

aniline Aniline is an organic compound with the formula C6 H5 NH2. Consisting of a phenyl group attached to an amino group, aniline is the simplest aromatic amine In organic chemistry, an aromatic amine is an organic compound consisting of an aroma ...

Structure

Solid VCl₂ adopts the cadmium iodide structure, featuring octahedral coordination geometry. 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).Holleman, A. F.; Wiberg, E. "Inorganic Chemistry" Academic Press: San Diego, 2001. .

References

{{DEFAULTSORT:Vanadium(Ii) Chloride Vanadium(II) compounds Chlorides Metal halides