Synthesis of a homoleptic tris(silylene)-palladium(0) complex and a silylyne-bridged tetranuclear palladium cluster.

We report the reactions of an iminophosphonamido-silylene (1) with different palladium complexes. The reaction of 1 with [Pd(PPh 3 ) 4 ] furnished a homoleptic tris(silylene)-palladium(0) complex. In contrast, treatment of 1 with [PdMe 2 (tmeda)] led to the unprecedented formation of a non-planar μ 3 -silylyne-bridged tetranuclear palladium cluster that contains palladium atoms in different oxidation states.