Structural Characterization of a Copper Nitrosyl Complex with a {CuNO}10 Configuration

The synthesis and characterization of a {CuNO}(10) complex, namely, [Cu(CH3NO2)(5)(NO)][PF6](2), has been achieved by the addition of [NO][PF6] to copper metal powder in the presence of nitromethane. In the solid state, this complex exhibits a bent Cu-N-O moiety [Cu-N-O = 121.0(3)degrees] and a long Cu-N bond. This complex readily reacts with mesitylene to form [mesitylene, NO][PF6] and [Cu(eta(2)-1,3,5-Me3C6H3)(2)][PF6] by transfer of NO+ to the mesitylene ring.