Abstract
A kinetically stabilized 1,3,6-triphosphafulvene bearing three 2,4,6-tri-tert-butylphenyl (Mes*) groups was formed as a trimer of phosphanylidene carbenoid generated from Mes*P=CBr2 with tert-butyllithium, and the corresponding pentacarbonyltungsten complex was analyzed by X-ray crystallography.