The CO and CS bond cleavage in carbon dioxide and tolyl isothiocyanate by reactions with the Mo(0) tetraphosphine complex [Mo{meso-o-C6H4(PPhCH2CH2PPh2)2}(Ph2PCH2CH2PPh2)]

A Mo(0) complex [Mo(P4)(dppe)] (P4meso o-C6H4(PPhCH2CH2PPh2)2, dppePh2PCH2CH2PPh2) reacted with CO2 and TolNCS (Tol = m-MeC6H4) to give the Mo(0) complexes fac-[Mo(CO)(η3-P4O)(dppe)] and trans,mer-[Mo(TolNC)2(η2- TolNCS)(η3-P4S)].