Vanadium oxydichloride

Vanadium oxydichloride is the inorganic compound with the formula VOCl2.

One of several oxychlorides of vanadium, it is a hygroscopic green solid.

It is prepared by comproportionation of vanadium trichloride and vanadium(V) oxides:[1] As verified by X-ray crystallography, vanadium oxydichloride adopts a layered structure, featuring octahedral vanadium centers linked by doubly bridging oxide and chloride ligands.

[2] From VOCl2, various blue or green-colored oxotri- and oxotetrachloride salts can be prepared.

Examples include N(CH3)4VOCl3 and the pyridinium derivative (C5H5NH)2VOCl4.