Carbonylchloro[2-(phenylazo)phenyl-C,N]platinum and cyclopentadienyl[2(phenylazo)phenyl-C,N]platinum

Abstract

The 2-(phenylazo)phenyl complex [Pt₂(µ-Cl)₂(pap)₂] is much less reactive than its palladium analogue. Whilst CO cleaves the chloride bridges to afford [PtCl(pap)(CO)], this readily loses CO to reform the starting material. Treatment of [PtCl(pap)(CO)] with other ligands displaced CO, but tailed to initiate any insertions of CO into the Pt–C bond. Treatment of [Pt(µ-Cl)₂(pap)₂] with TI(C₅H₅) caused no reaction, but [PtCl(pap)(CO)] reacted smoothly with Tl(C₅H₅) to produce [Pt(C₅H₅)(pap)].