Synthesis,Structural Characterization,and Catalytic Activity of Scandium,Samarium, and Dysprosium Complexes Supported by Tris(pyrrolyl‐α‐methyl)amine Ligand |
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| Authors: | Fengying Zhou Jing Wu Miaoshui Lin Yang Zhao Jian Wu Yong Zhang Wu Li Prof Dr Yahong Li |
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| Institution: | 1. Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Suzhou University, Suzhou, 215123, China;2. Key Laboratory of Salt Lake Resources and Chemistry, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, China;3. State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, China |
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| Abstract: | The synthesis, structures and catalytic activities of three organolanthanide complexes supported by the H3tpa ligand (H3tpa = tris(pyrrolyl‐α‐methyl) amine) are described. Treatment of H3tpa with one equivalent of LnN(SiMe3)2]3 (Ln = Sc, Sm, Dy) in THF gives, after recrystallization from toluene/THF solution, Sc(tpa)(THF)2 ( 1 ), Sm(tpa)(THF)3 ( 2 ) and Dy(tpa)(THF)3 ( 3 ) in good yields. The structures of complexes 1 – 3 were determined by single‐crystal X‐ray diffraction and elemental analysis. Complexes 2 and 3 exhibited good catalytic activity for the polymerization of ?‐caprolactone. |
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| Keywords: | Scandium Samarium Dysprosium Polymerization ϵ ‐Caprolactone |
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