di-μ-chloro-bis(η4-1,5-cyclooctadiene)diiridium; [{(η5-C5Me5)IrCl}2(μ-Cl)2]; potassium carbonate; 1,2-bis-(diphenylphosphino)ethane in 1,3,5-trimethyl-benzene T=160°C; 24 h; Inert atmosphere;