Citation: Wu Jie, Zhang Xiuli, Zhang Lijun, Wei Yun, Zhou Shuangliu. Synthesis and Catalytic Activity of Dinuclear Rare-Earth Metal Complexes with Nitrogen-Containing Bridged Dipyrrolyl Ligand towards Ring-Opening Polymerization of e-Caprolactone[J]. Chinese Journal of Organic Chemistry, ;2020, 40(3): 801-805. doi: 10.6023/cjoc201908010 shu

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

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

Corresponding author: Zhang Lijun, zljun@ahnu.edu.cn Zhou Shuangliu, slzhou@ahnu.edu.cn
Received Date: 6 August 2019
Revised Date: 13 October 2019
Available Online: 9 November 2019
Fund Project: Project supported by the National Natural Science Foundation of China Nos. 21672004Project supported by the National Natural Science Foundation of China 21602004Project supported by the National Natural Science Foundation of China (Nos. 21672004, 21602004)

Figures(3)

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.
- rare-earth metal,
- complex,
- e-caprolactone,
- ring-opening polymerization
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