名称:
[{Nb(η5-C5H4SiMe3)Cl2}2(μ-1,4-NC6H4N)]、[{Ta(η5- C5Me5)Cl2}2(μ-1,4-NC6H4N)] 和 [{Ta(η5-C5Me5)(CH2SiMe3)2}2(μ-1,4-NC6H4N)]
摘要:
一系列双核单环戊二烯基亚氨基铌和-钽配合物的制备是通过两种不同的合成路线实现的。二亚胺配合物 [{M(Cp')Cl2}2(μ-1,i-NC6H4N)] [Cp' = η5-C5H4SiMe3, M = Nb, i = 4 (1); Cp' = η5-C5H4SiMe3, M = Nb, i = 3 (2); Cp' = η5-C5H4SiMe3, M = Nb, i = 2 (3); Cp' = η5-C5Me5, M = Nb, i = 4 (4); Cp' = η5-C5Me5, M = Nb, i = 3 (5); Cp' = η5-C5H4SiMe3, M = Ta, i = 4 (6); Cp' = η5-C5H4SiMe3, M = Ta, i = 3 (7)] 由一当量的三氯前体 [{MCl3}2(μ-1,i-NC6H4N)] (M = Nb, Ta, i = 4, 3 或 2)