標題: Graphical method for the determination of the complex NMR shift and equilibrium constant for a hetero-association accompanying self-associations
作者: Lin, CC
Fang, CY
Kao, DY
Chen, JS
交大名義發表
應用化學系
National Chiao Tung University
Department of Applied Chemistry
關鍵字: self-association;hetero-association;NMR shift;graphical method
公開日期: 1-八月-1997
摘要: We describe a novel graphical method which, in conjunction with the previously proposed graphical determination of mono;ner shift, dimer shift, and dimerization constant for self-association, allows us to determine the complex shift and equilibrium constant for a hetero-association, A + B reversible arrow AB, accompanying self-associations, A + A reversible arrow A(2), and B + B reversible arrow B-2. The merit of the new method includes the removal of the restrictions imposed on the conventional Benesi-Hildebrand (B-H) plot: (1) that the concentration of one component must be much less than that of the other; (2) that there be no accompanying self-association, The simultaneous equilibrium of the self-association of 2-pyrrolidone (A) and that of 4-methyl-alpha-pyrrolidone (B) and the hetero-association between A and B in acetonitrile-d(3) at 25 degrees C is studied. The inappropriateness of the B-H plot in dealing with this case is also pointed out.
URI: http://hdl.handle.net/11536/400
ISSN: 0095-9782
期刊: JOURNAL OF SOLUTION CHEMISTRY
Volume: 26
Issue: 8
起始頁: 817
結束頁: 832
顯示於類別:期刊論文


文件中的檔案:

  1. A1997YB99300005.pdf