methylcyclopentadiene ligand. The reaction of the title complexes with phosphines HPR′2 (R′ = Et, Ph) gave two major products: the corresponding aldehyde complexes [Mo2Cp2(μ-PCy2)(μ-PR′2)η2-C(O)HR}(CO)] (Mo–Mo = 2.8288(5) Å when R = CH2Ph and R′ = Et) and the dicarbonyl complexes [Mo2Cp2(μ-PCy2)(μ-PR′2)(CO)2], these following from alternative reductive elimination processes, from hydrogen and either
甲基桥连的络合物[沫2的CP 2(μ-Me)的(μ-PCY 2)(CO)2 ](CP =η 5 -C 5 H ^ 5)与
化学计算量的CN反应吨在243ķ卜,得到的ç,Ó:ç,ö -bridged酰基络合物[沫2的CP 2 μ- ç,Ó:ç,ö -C(O)Me}(μ-PCY 2)(CN吨卜)(CO)],在室温下会缓慢重排成亚
氨基酰基桥接的异构体[Mo 2 CP2(μ- Ç, Ñ: Ç, Ñ -MeCN吨卜)(μ-PCY 2)(CO) 2 ]。与此相反, Ç: Ò -bridged酰基络合物[沫2的CP 2 μ- Ç: ø -C(O)Me}(μ-PCY 2)(CN吨当在室温下进行上述反应时,Bu)(CO)]是主要产物。密度泛函理论(DFT)用于发现所有这些异构体中最可能的结构,其中亚
氨基酰基络合物是绝对最小值。与上述反应相反,当使用芳基
异氰酸酯CNR(R = o -C 6 H 4 Me,p