National Changhua University of Education Institutional Repository : Item 987654321/18915
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題名: Synthesis and Structural Characterization of Metal Complexes Based on Pyrazole/imidazolium Chlorides
作者: Lee, Hon Man;Chiu, Pei-Ling;Hu, Ching-Han;Lai, Chun-Liang;Chou, Yi-Chun
貢獻者: 化學系
日期: 2005-01
上傳時間: 2014-08-14T04:29:00Z
出版者: Elsevier
摘要: A series of imidzoalium salt, L � HCl, for the potentially bidentate pyrazole/N-heterocyclic carbene was synthesized. Reactions of a 2:1 mixture between L � HCl bearing bulky N-substitution and Ag2O produced Ag(L)Cl, whereas a novel compound with unique stoichiometry AgL2(AgCl)0.5Cl was produced from L � HCl bearing N-methyl group under identical condition. Reactions of L � HCl with PdCl2 produced zwitterionic PdIICl3L � H. Selected structural determinations on L � HCl, Ag(L)Cl, AgL2(AgCl)0.5Cl, and PdIICl3L � H revealed intriguing crystal chemistry in which the less-stable gauche rotamers were obtained exclusively. A preliminary application of the zwitterionic complexes, PdIICl3L � H, in Heck coupling reaction of aryl bromide with n-butyl acrylate shows effective activity.
關聯: Journal of Organometallic Chemistry, 690(2): 403-414
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