The rare-earth metal hydroxylamide compound Y[N(SiHMe2)2]2[ONBn2][THF] (1) was prepared by the silylamide elimination pathway from the reaction of N,N-dibenzylhydroxylamine, Bn2NOH (Bn = CH2C6H5), with Y[N(SiHMe2)2]3[THF]2 and was characterised by multinuclear NMR spectroscopy and elemental analysis. The compounds [Cp2Y(ONBn2)]2 (2a) [Cp2Sm(ONBn2)]2 (2b) were obtained by the reactions of MCp3 (M = Y, Sm) with Bn2NOH. The trinuclear compound Cp5Y3[ON(Me)CH2CH2(Me)NO]2 (3) was obtained by the reaction of YCp3 and the bishydroxylamine HON(Me)CH2CH2(Me)NOH. 2a, 2b and 3 were characterised by NMR spectroscopy, single-crystal X-ray diffraction and elemental analysis. In all these complexes side-on-coordination of the hydroxylamide units was observed. The compounds are of dynamic nature in solution.
稀土
金属羟酰胺化合物 Y[N(SiHMe2)2]2[ONBn2][THF](1)是由 N,N-二苄基
羟胺 Bn2NOH(Bn = CH2C6H5)与 Y[N(SiHMe2)2]3[THF]2 反应通过
硅酰胺消去途径制备的,并通过多核核磁共振光谱和元素分析进行了表征。化合物 [Cp2Y(ONBn2)]2 (2a) [Cp2Sm(ONBn2)]2 (2b) 是由 MCp3(M = Y、Sm)与 Bn2NOH 反应得到的。YCp3 与双
羟胺 HON(Me)CH2CH2(Me)NOH 反应得到三核化合物 Cp5Y3[ON(Me)CH2CH2(Me)NO]2 (3)。通过核磁共振光谱、单晶 X 射线衍射和元素分析对 2a、2b 和 3 进行了表征。在所有这些复合物中都观察到了羟酰胺单元的侧配位。这些化合物在溶液中具有动态性质。