First examples of η1-ligated 1,2,4-triphosphacyclopentadienyl ring systems. Synthesis and fluxional behaviour of trans-[MCl(C2R2P3)(PEt3)2], (R = But, adamantyl), (M = Pd, Pt); crystal and molecular structures of trans-[PtX(C2But2P3)(PR3)2], (X = Cl, R = Et; X = I, R = Ph)
Abstract
First examples of η1-ligated 1,2,4-triphosphacyclopentadienyl ring systems are described and structural features and solution fluxional behaviour are discussed.