Silylene-Induced Reduction of [Mn2(CO)10]: Formation of a Five-Coordinate Silicon(IV) Complex with an O-Bound [(OC)4Mn=Mn(CO)4]2– Ligand

Treatment of the donor-stabilized silylene [iPrNC(NiPr2)NiPr]2Si (1) with [Mn2(CO)10] leads to the five-coordinate silicon(IV) complex 6, accompanied by elimination of two CO molecules. In this redox reaction, the dimanganese fragment is reduced to form an [(OC)4Mn=Mn(CO)4]2– moiety that is coordinated to the silicon(IV) species {[iPrNC(NiPr2)NiPr]2Si}2+.