Chinese Journal of Organic Chemistry ›› 2020, Vol. 40 ›› Issue (3): 801-805.DOI: 10.6023/cjoc201908010 Previous Articles     Next Articles

含氮原子桥联吡咯基稀土金属双核配合物的合成及催化e-己内酯的开环聚合反应

吴杰, 张秀丽, 张丽军, 韦芸, 周双六   

  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
  • 收稿日期:2019-08-06 修回日期:2019-10-13 出版日期:2020-03-25 发布日期:2019-11-01
  • 通讯作者: 张丽军, 周双六 E-mail:zljun@ahnu.edu.cn;slzhou@ahnu.edu.cn
  • 基金资助:
    国家自然科学基金(Nos.21672004,21602004)资助项目.

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

Wu Jie, Zhang Xiuli, Zhang Lijun, Wei Yun, Zhou Shuangliu   

  1. 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
  • Received:2019-08-06 Revised:2019-10-13 Online:2020-03-25 Published:2019-11-01
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Nos. 21672004, 21602004).

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{m-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 of e-caprolactone have been studied.

Key words: rare-earth metal, complex, e-caprolactone, ring-opening polymerization