Diphosphorus tetrachloride

Diphosphorus tetrachloride is an inorganic compound with a chemical formula. It is a colorless liquid that decomposes near room temperature and ignites in air.

Production

It was first prepared in 1910 by Gauthier by the following reaction:
An improved method involves coevaporation of phosphorus trichloride and copper, as described by the following:

Reactions

Near room temperature, the compound degrades to give phosphorus trichloride and an ill-defined phosphorus monochloride:
The compound adds to cyclohexene to give trans--1,2-.