trans-Rh 2(μ-dppm) 2(CO) 2Cl 2 (dppm = bis (diphenylphosphino)methane) in the presence of chloride has afforded the new dirhodium(II) unsymmetrical complex Rh 2(μ-dppm) 2(μ-Cl)(CO)Cl 3 which is readily converted to the complex [Rh 2(μ-dppm) 2(μ-Co)(μ-Cl)Cl 2]PF 6...