X-Ray structural studies on [Rh(CO)(PPh3)(µ-RNNNR)}2]Z+(R =p-tolyl, z= 0 and 1) show that the mixed-valence cation is formed by electron-loss from a metal–metal anti-bonding orbital; the asymmetric compounds [Rh2(CO)2L(PPh3)µ-PhNC(Me)NPh}2]Z+[L = P(OPh)3, AsPh3, etc., z= 0 and 1] result form the oxidatively induced substitution of [Rh2(CO)3(PPh3)µ-PhNC(Me)NPh}2].
对[Rh(CO)(PPh3)(µ-RNNR)}2]Z+(R =
对甲苯基,z= 0 和 1)的 X 射线结构研究表明,混合价阳离子是通过
金属-
金属反键轨道的电子丢失形成的;不对称化合物 [Rh2(CO)2L(PPh3)µ-PhNC(Me)NPh}2]Z+[L = P(OPh)3、AsPh3 等、z= 0 和 1]是[Rh2(CO)3(PPh3)µ-PhNC(Me)NPh}2]氧化诱导取代的结果。