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题名: Zirconium Complexes Containing Bidentate Pyrrole Ligand: Synthesis, Structural Characterization, and Ethylene Polymerization
作者: Huang, Jui-Hsien;Chen, Hsing-Jen;Chi, Liang-Sheng;Yu, Ru-Ching;Jiang, George J.;Yang, Wei-Ta;Lee, Gene-Hsiang;Peng, Shie-Ming
贡献者: 化學系
日期: 2001
上传时间: 2012-12-10T01:39:25Z
出版者: American Chemical Society
摘要: Reactions of ZrCl4 with 2 or 3 equiv of Li[C4H3N(CH2NMe2)-2] in toluene afford ZrCl2[C4H3N(CH2NMe2)-2]2 (1) and ZrCl[C4H3N(CH2NMe2)-2]3 (2), respectively. Compounds 1 and 2 are characterized by NMR spectroscopy and single-crystal X-ray diffraction. Compound 1 exists as a six-coordinate octahedral structure with the two NMe2 units taking trans positions, and the seven-coordinate compound 2 shows a chloride-capped octahedral structure in which three bidentate pyrrole ligands form a pseudo-propeller structure with a δλλ form. A polymerization study shows that compounds 1 and 2 exhibit moderate activity toward ethylene, with compound 2 having higher activity.
關聯: Organometallics, 20(26): 5788-5791
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