Homolytic fission and scrambling reactions of Mn2(CO)8(PCy3)2(Cy = cyclohexyl) and Mn2(CO)8(PPh3)2
Abstract
The complexes Mn2(CO)8L2(L = PCy3 and PPh3)(Cy = cyclohexyl) both react with 1,1,2,2-tetrachloroethane to form ClMn(CO)4L at rates which conform with initial homolytic fission of the Mn–Mn bond and this mechanistic assignment is confirmed by the occurrence of reaction between the two complexes to form Mn2(CO)8(PCy3)(PPh3)