Four tetrairidiumcarbonylclusters linked by six diphosphino ligands: synthesis and X-ray structure of [{Ir4(CO)9}4(dppmb)6] (dppmb = 1,4-bis(diphenylphosphinomethyl)benzene

Abstract

Tetrairidium carbonyl clusters are potentially useful connectors for multidimensional functionalized frameworks with organic bis-phosphines as linkers. The reaction of Ir₄(CO)₁₂ and 1,4-bis(diphenylphosphinomethyl)benzene produces an oligomeric cyclic structure, made of 4 connectors and 6 linkers, a possible intermediate in the formation of three dimensional networks.