Synthesis and characterization of heterobimetallic organo rare earth complexes bearing aryloxide-N-heterocyclic carbene ligands
作者:Jingjing Zhang、Min Zhang、Tianwen Bai、Xufeng Ni、Zhiquan Shen
DOI:10.1016/j.jorganchem.2017.04.039
日期:2017.8
heterobimetallic potassium-NHC rare earth complexes L1KLnN″3 and L2KLnN″3 (L1, Ln = Y (1a), Nd (1b); L2, Ln = Y (2a), Nd (2b), N″ = N(SiMe3)2) were obtained by in-situ reaction of N-heterocyclic carbene proligands H2L1 and H2L2 with Ln[N(SiMe3)2]3 and KN(SiMe3)2 in toluene. The K-NHC rare earth complexes were characterized by single-crystal X-ray crystallography and Y complexes were characterized by 1H and
两个芳氧基取代的N-杂环卡宾(NHC)配位体3-[((2-羟基萘)甲基] -1-mesityl-3,4,5,6-四氢嘧啶氯化物(H 2 L1)和3-(2-羟基苄基)设计了-1-甲磺酰-3,4,5,6-四氢嘧啶鎓氯化物(H 2 L2),并通过三种合成方法轻松合成了高收率。四异核钾-NHC稀土配合物L1 KLnN“ 3和L2 KLnN” 3(L1,Ln为Y(1A),钕(1B); L2,Ln为Y(图2a),钕(图2b),N“= N (SiMe 3)2)是通过N杂环卡宾配体H 2 L1和H 2 L2与Ln [N(SiMe 3)2 ] 3和KN(SiMe 3)2在甲苯中原位反应获得的。K-NHC稀土配合物通过单晶X射线晶体学表征,Y配合物通过1 H和13 C NMR光谱表征。DFT计算被用来进一步研究这些化合物中的电荷分布和相互作用。