摘要
用￣（１９）ＦＮＭＲ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。
The ligand－exchange equilibria that are established in Al（Ttfac）_3－Al（bzac）_3 sys-tem，where Ttfac ＝ Theonyltrifluoroacctone，bzac ＝ benzoylacetone，havc been studied bymeans of^(19)F NMR spectroscopy．The ligand－exchange equilibria may be described interms of two independent cquilibria．Equilibrium co constants for formation of eachmixed－ligand complexes from the parent complexes have been determined．It is foundthat the mixed complexes are favored at the expense of parent complexes．Deviationsfrom a statistical distribution of ligand are relatcd to geometric isomers in complexes．
出处
《波谱学杂志》
CAS
CSCD
1995年第3期277-282,共6页
Chinese Journal of Magnetic Resonance
基金
国家自然科学基金
关键词
金属
分子间
配体交换反应
NMR
Al（Ⅲ）complexes of Ttfac and bzac，^(19)F NMR，Intermolecular ligand－exchange reaction
