National Changhua University of Education Institutional Repository : Item 987654321/14779
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题名: Synthesis and Characterization of Lithium and Yttrium Complexes Containing Tridentate Pyrrolyl Ligands. Single-crystal X-ray Structures of {Li[C4H2N(CH2NMe2)2-2,5]}2 (1) and {[C4H2N(CH2NMe2)2-2,5]YCl2(μ-Cl) · Li(OEt2)2}2 (2) and Ring-opening Polymerization of ε-Caprolactone
作者: Kuo, Pei-Cheng;Chang, Jr-Chieng;Lee, Wen-Yi;Lee, Hon-Man;Huang, Jui-Hsien
贡献者: 化學系
关键词: Lithium;Yttrium;Pyrrolyl;Ring-open polymerization
日期: 2005-09
上传时间: 2012-12-10T01:39:40Z
出版者: Elsevier
摘要: The lithiated pyrrolyl ligand, {Li[C4H2N(CH2NMe2)2-2,5]}2 (1) was synthesized and structurally characterized. Reaction of 1 with YCl3 in the molar ratio 1:1 in diethyl ether at room temperature afforded a di-yttrium di-lithium tetranuclear complex, {[C4H2N(CH2NMe2)2-2,5]YCl2(μ-Cl) · Li(OEt2)2}2 (2) in 87% yield. Compounds 1 and 2 were characterized by NMR spectroscopy and single crystal X-ray crystallography. Compound 1 shows high reactivity for the ring-opening polymerization of ε-caprolactone.
關聯: Journal of Organometallic Chemistry, 690(18): 4168-4174
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