Synthesis and characterization of bridged bis(amidato) rare earth metal amides and their applications in C–N bond formation reactions
作者:Bei Zhao、Yang Xiao、Dan Yuan、Chengrong Lu、Yingming Yao
DOI:10.1039/c5dt04217h
日期:——
(n = 1, RE = La (1), Sm (2), Nd (3), Y (4); n = 2, RE = La (5), Nd (6); n = 3, RE = La (7), Nd (8); TMS = SiMe3) were successfully synthesized by treatment of H2Ln with RE[N(TMS)2]3 in a 1 : 1 molar ratio. Complexes 3, and 5–8 were characterized by single-crystal X-ray diffraction, and NMR characterization was carried out for the La complexes 1, 5, 7 and the Y complex 4. These complexes exhibited high
基于三个双酰胺配体H 2 L n(n = 1-3)(H 2 L 1 = [(Me 3 C 6 H 2 CONHCH 2)2 CH 2 ],H 2 L 2 = [(Me 3 C 6 H 2 CONHCH 2)2 C(CH 3)2 ],H 2 L 3 = [Me 3 C 6 H 2 CONH(CH 2)2 ]2 NCH 3),八种双(酰胺基)三价稀土金属酰胺L n RE [N(TMS) 2 ]} 2( n = 1,RE = La( 1),Sm( 2),Nd( 3) ,Y( 4); n = 2,RE = La( 5),Nd( 6); n = 3,RE = La( 7),Nd( 8); TMS = SiMe 3)通过H的处理成功合成。 2 L n与RE [N(TMS) 2 ] 3的摩尔比为1:1。配合物3和5-8通过单晶X-射线衍射表征,和NMR表征进行了拉络合物1,5,7和Y复杂4。这些络合物