A bis(cyclopalladated) tetranuclear derivative of methyl ferrocenyl ketone azine: [{Pd[(η5-C5H5)Fe(η5-C5H3)CMeN]Cl(PPh3)}2]

Abstract

The bis(cyclopalladated) tetranuclear compound [{[graphic omitted]]Cl(PPh₃)}₂] has been prepared and characterized. Proton and ³¹P NMR spectra reveal the presence of four diastereomers in solution. The crystal structure of the meso form has been determined by X-ray crystallography. This confirms the existence of two five-membered palladacycles with a σ(Pd–C_{sp², ferrocene}) bond. Electrochemical studies, based on cyclic voltammetry, and Mössbauer spectra are also reported.