含氮原子桥联吡咯基稀土金属双核配合物的合成及催化ε-己内酯的开环聚合反应  

Synthesis and Catalytic Activity of Dinuclear Rare-Earth Metal Complexes with Nitrogen-Containing Bridged Dipyrrolyl Ligand towards Ring-Opening Polymerization ofε-Caprolactone

作　　者：吴杰[1] 张秀丽 张丽军[1] 韦芸[1] 周双六[1] Wu Jie;Zhang Xiuli;Zhang Lijun;Wei Yun;Zhou Shuangliu(Laboratory of Functionalized Molecular Solids,Ministry of Education,Anhui Laboratory of Molecule-Based Materials,College of Chemistry and Materials Science,Anhui Normal University,Wuhu,Anhui 241000)

机构地区：[1]安徽师范大学化学与材料科学学院功能分子固体教育部重点实验室分子基材料安徽省重点实验室,安徽芜湖241002

出　　处：《有机化学》2020年第3期801-805,共5页Chinese Journal of Organic Chemistry

基　　金：国家自然科学基金(Nos.21672004,21602004)资助项目。

摘　　要：RE(CH2SiMe3)3(THF)2和1.5 equiv.(C4H3NHCH2)2NCH3(1)反应合成得到含氮原子桥联吡咯基稀土金属双核配合物[η1∶η1∶η1-(C4H3NCH2)2NCH3]RE{μ-η5∶η5∶η1-(C4H3NCH2)2NCH3}RE[η1∶η1∶η1-(C4H3NCH2)2NCH3](THF)[RE=Y(2),Er(3),Yb(4)],所得配合物经过核磁共振、红外和元素分析表征,配合物2和4经单晶X-Ray进一步确认结构.同时研究了稀土配合物作为单一组分催化剂催化ε-内酯的开环聚合反应.Reaction of RE(CH2SiMe3)3(THF)2 with 1.5 equiv.of(C4H3NHCH2)2NCH3(1)in toluene gave nitrogen-containing bridged dipyrrolyl dinuclear rare-earth metal complexes[η1∶η1∶η1-(C4H3NCH2)2NCH3]RE{μ-η5∶η1∶η5∶η1∶η1-(C4H3NCH2)2N-CH3}RE[η1∶η1∶η1-(C4H3NCH2)2NCH3](THF)[RE=Y(2),Er(3),Yb(4)].All complexes were fully characterized by spectroscopic methods and elemental analyses.The structures of complexes 2 and 4 were further determined by single-crystal X-ray diffraction.The catalytic properties of rare-earth metal complexes on the ring-opening polymerization ofε-caprolactone have been studied.

关 键 词：稀土金属 配合物 Ε-己内酯 开环聚合 

分 类 号：TQ316.341[化学工程—高聚物工业] TQ426