NMR STUDIES ON LIGAND-EXCHANGE REACTION FOR Al(Ttfac)3-Al(bzac)3 System

Chinese Journal of Magnetic Resonance ›› 1995, Vol. 12 ›› Issue (3): 277-282.

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NMR STUDIES ON LIGAND-EXCHANGE REACTION FOR Al(Ttfac)₃-Al(bzac)₃ System

Tang Yalin, Wang Yuzhen, Xu Guangzhi

State Key Laboratory for Structure Chemistry of Unstable and Stable Species, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100080

Received:1994-08-18 Revised:1994-10-20 Published:1995-06-05 Online:2018-01-17

Abstract

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.

Key words: Al (Ⅲ) complexes of Ttfac and bzac, ¹⁹F NMR, Intermolecular ligand-exchange reaction

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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NMR STUDIES ON LIGAND-EXCHANGE REACTION FOR Al(Ttfac)₃-Al(bzac)₃ System

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