| 金属络合物分子间交换反应的核磁共振研究Ⅲ.噻吩甲酰三氟丙酮铝与苯甲酰丙酮铝体系分子间配体交换的19F NMR研究 |
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| 引用本文： | 唐亚林,王玉珍.金属络合物分子间交换反应的核磁共振研究Ⅲ.噻吩甲酰三氟丙酮铝与苯甲酰丙酮铝体系分子间配体交换的19F NMR研究[J].波谱学杂志,1995,12(3):277-282. |
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| 作者姓名： | 唐亚林 王玉珍 |
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| 作者单位： | 中国科学院化学研究所分子动态与稳态结构化学国家重点实验室, 北京 100080 |
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| 摘 要： | 用19F NMR研究了噻吩甲酰三氟丙酮铝与苯甲酰丙酮铝体系分子间的团体交换反应,求得了交换反应的平衡常数及自由能,结果表明交换反应有利于混合配体络合物生成,平衡时混和溶液中各组分分布偏离统计分布。
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| 关 键 词： | Al (Ⅲ)的Ttfac、bzac络合物 19F NMR 分子间的配体交换反应 |
| 收稿时间： | 1994-08-18 |
NMR STUDIES ON LIGAND-EXCHANGE REACTION FOR Al(Ttfac)3-Al(bzac)3 System |
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| Tang Yalin,Wang Yuzhen,Xu Guangzhi.NMR STUDIES ON LIGAND-EXCHANGE REACTION FOR Al(Ttfac)3-Al(bzac)3 System[J].Chinese Journal of Magnetic Resonance,1995,12(3):277-282. |
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| Authors: | Tang Yalin Wang Yuzhen Xu Guangzhi |
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| Institution: | State Key Laboratory for Structure Chemistry of Unstable and Stable Species, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100080 |
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| Abstract: | The ligand-exchange equilibria that are established in Al (Ttfac) 3-Al (bzac) 3 system,where Ttfac=Theonyltrifluoroacctone,bzac=benzoylacetone,have been studied by means of 19F NMR spectroscopy.The ligand-exchange equilibria may be described in terms of two independent cquilibria.Equilibrium constants for formation of each mixed-ligand complexes from the parent complexes have been determined.It is found that the mixed complexes are favored at the expense of parent complexes.Deviations from a statistical distribution of ligand are relatcd to geometric isomers in complexes. |
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| Keywords: | Al (Ⅲ) complexes of Ttfac and bzac 19F NMR Intermolecular ligand-exchange reaction |
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