The nature of the bridging nitrido ligand. Synthesis and reactivity of heterobimetallic nitrido-bridged compounds
作者:Carolyn M. Jones、Nancy M. Doherty
DOI:10.1016/0277-5387(94)00355-i
日期:1995.1
)(OSiMe 3 ) 3 and a group VIII metal chloride or hydride product. Comparison of the reactivity and spectroscopic data among the nitrido-bridged compounds and with related iridium(I) and rhodium(I) complexes suggests that the nitrido-bridged compounds are best viewed as adducts in which anionic [(R 3 SiO) 3 VN:] − acts as a simple two-electron donor to the 14-electron cationic [M(L)(PPh) 2 ] + fragment
摘要异双金属亚硝基桥接化合物(R 3 SiO)3VNM(CO)(PPh 3)2(RMe或Et和MIr或Rh)和(Me 3 SiO)3VNRh (PPh 3)3是通过钒硅烷基酰亚胺化合物V(NSiR 3)(OSiR 3)3和VIII族金属氟化物MF(L)(PPh 3)2的缩合反应合成的。小分子(MeI,O 2,H 2)氧化成(R 3 SiO)3VNIr(CO)(PPh 3)2的铱(I),产生铱(III)化合物,其中VNIr相互作用得以保留。然而,相比之下,(Me 3 SiO)3VNM(L)(PPh 3)2中的亚硝基键很容易被甲硅烷基化试剂(ClSiMe 3,ClSiEt 3,HSiEt 3)裂解,生成V(NSiR 3 )(OSiMe 3)3和第VIII族金属氯化物或氢化物产物。