摘要:
一系列双金属环化合物[M(THF)x UN *(CH 2 SiMe 2 N {SiMe 3 })2 ] n [M = Na(2),Li(3)或K(4),N * =从UCl 4或[UN * 3 Cl]与MN *的反应中分离出N(SiMe 3)2,或通过[UN * 2(CH 2 SiMe 2 N {SiMe 3 })](1)或[UN ]的处理分离出N(SiMe 3)2。 * 3 ]与MN *,MH或LiCH 2 SiMe 3在四氢呋喃(THF)中。的晶体2A ·1/6的Ñ戊烷(X = 0),图2b(X = 1),图2c(X = 2),和图4b(X = 1)通过结晶获得的2和4从戊烷,和[ Na(18-crown-6)(THF)] [UN *(CH 2 SiMe 2 N {SiMe 3 })2 ](2d)和[Na(15-crown-5)] [UN *(CH 2 SiMe 2 N {SiMe 3 })2