Tungsten(II) chloride


Tungsten chloride is the inorganic compound with the formula W6Cl12. It is a polymeric cluster compound. The material dissolves in concentrated hydrochloric acid, forming 2x. Heating this salt gives yellow-brown W6Cl12. The structural chemistry resembles that observed for molybdenum chloride.
Tungsten chloride is prepared by reduction of the hexachloride. Bismuth is a typical reductant: