[Fe2MCp2(μ3-PCy)(μ-CO)(CO)n] now exhibiting a dangling FeCp(CO)2 moiety (M = Cr, n = 7, Cr–Fe = 2.7370(3) Å; M = Fe, n = 6, new Fe–Fe bond = 2.6092(9) Å) as a result of the cleavage of the Fe–Fe bond in the precursor and subsequent formation of a new M–Fe bond. These processes are reversible, since the new isomers gave back the starting complexes under low (Cr) or moderate (Fe) thermal activation. In contrast
标题配合物(CP =η 5 -C 5 H ^ 5)与所述不稳定羰基配合物[M(CO)反应5(THF)](M =
铬,
钼,W)和[MnCP'(CO)2(THF) ](CP'=η 5 -C 5 H ^ 4 Me)中,得到亚膦桥接式三
金属化合物的[Fe 2 MCP 2(μ 3 -PCy)(μ-CO)(CO)7 ](CR-P = 2.479 (1)a)和的[Fe 2 MnCP 2 CP'(μ 3 -PCy)(μ-CO)(CO)4 ],分别形成在每种情况下一个新的M-P键的,以及相关的异
金属配合物[后
铁2 MClCP2(μ 3 -PCy)(μ-CO)(CO)2 ](M =
铜,
金; Au的P = 2.262(1))被干净地反应时与
氯化亚铜或不稳定的
四氢噻吩(
THT)形成的复合物[ AuCl(
THT)]。与[Fe 2(CO)9 ]的反应类似地进行,以高收率得到三
铁衍
生物[Fe 3 CP 2(μ3 -PCy)(μ-CO)(CO)6