Inorganic Chemistry, Vol.51, No.1, 34-36, 2012
Symmetrization in a Phosphinidene-Bridged Complex To Give a Diphosphanediyl Derivative with Metal-Centered Reactivity
The phosphinidene complex [Mo2Cp(mu-kappa(1):kappa(1),eta(5)-PC5H4)(CO)(2)(eta(6)-HMes*)] reacts with CO to give the diphosphanediyl derivative [Mo-2{mu-kappa(1),eta(5):kappa(1),eta(5)-(C5H4)PP(C5H4)}(eta(6)-HMes*)(2 )]. The latter compound features unreactive lone electron pairs at phosphorus, which instead contribute to the electronic communication between metal centers via a weak pi(PP)-bonding interaction. As a result, this complex displays metal-centered acid-base and redox behavior.