Rate constants for reduction of substituted methylperoxyl radicals by ascorbate ions and N, N, N', N'-tetramethyl-p-phenylenediamine

…, RE Huie, S Mosseri, LV Shastri, JP Mittal…

文献索引：Neta, P.; Huie, R. E.; Mosseri, S.; Shastri, L. V.; Mittal, J. P.; et al. Journal of Physical Chemistry, 1989 , vol. 93, # 10 p. 4099 - 4104

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被引用次数: 82

摘要

Absolute rate constants (k) for reduction of substituted methylperoxyl radicals by ascorbate ions and by TMPD (N, N,-N', N'-tetramethyl-p-phenylenediamine) in aqueous solutions have been determined by pulse radiolysis. The rate constants vary from lo6 to lo9 MI sl, increasing as the electron-withdrawing capacity of the substituent on the peroxyl group increases. Linear correlations are observed between log k and the Taft substituent constants u* for a ...