Phosphinosilylenes as a novel ligand system for heterobimetallic complexes

Abstract

A dihydrophosphinosilylene iron complex [LSi{Fe(CO)₄}PH₂] has been prepared and utilized in the synthesis of novel heterobimetallic complexes. The phosphine moiety in this phosphinosilylene complex allows coordination towards tungsten leading to the iron–tungsten heterobimetallic complex [LSi{Fe(CO)₄}PH₂{W(CO)₅}]. In contrast, the reaction of [LSi{Fe(CO)₄}PH₂] with ethylenebis(triphenylphosphine)platinum(0) results in the formation of the iron–platinum heterobimetallic complex [LSi{Fe(CO)₄}PH{PtH(PPh₃)₂}] via oxidative addition.