Linear free energy substituent effect on flavin redox chemistry

被引:75
作者
Hasford, JJ [1 ]
Rizzo, CJ [1 ]
机构
[1] Vanderbilt Univ, Dept Chem, Nashville, TN 37235 USA
关键词
D O I
10.1021/ja972992n
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A systematic study on the effect of various substituents at the 7- and/or 8-position on the redox properties of isoalloxazines (flavins) is reported. The redox properties of these flavin derivatives were studied by cyclic voltammetry in 100 mM, pH 7.4 HEPES and 200 mM, pH 10 berate buffers. The magnitude and direction of the effect was dependent on the nature and location of the substituent. The redox potentials of the substituted flavins were correlated with the Hammett sigma value of the substituents.
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页码:2251 / 2255
页数:5
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