The measurement of one-electron redox potentials of free radicals

被引：0

作者：

Khudyakov, Igor V. ^{[1
,2
]}

机构：

[1] Columbia Univ, Dept Chem, New York, NY USA

[2] Columbia Univ, Dept Chem, 116 W & Broadway, New York, NY 10027 USA

来源：

JOURNAL OF PHYSICAL ORGANIC CHEMISTRY | 2024年 / 37卷 / 06期

关键词：

a reference redox pair; electron transfer; reactive free radicals; redox potentials; REDUCTION POTENTIALS; PHOTO-REDUCTION;

D O I：

10.1002/poc.4608

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The paper is devoted to the measurements of one-electron redox potentials of transient free radicals Eo. These values can be measured in the reversible redox reactions of radicals under investigation with a reference pair, which Eo is known. Several Eo of transient radicals are presented. The convenient and important objects for Eo measurement are quinone/semiquinone radical-anions. A general problem of measurement of thermodynamic properties of short-lived transients is discussed. The paper is devoted to the measurements of one-electron redox potentials of transient free radicals E degrees. These values can be measured in the reversible redox reactions of radicals under investigation with a reference pair, which E degrees is known. Several E degrees of transient radicals are presented. The convenient and important objects for E degrees measurement are quinone/semiquinone radical-anions. A general problem of measurement of thermodynamic properties of short-lived transients is discussed. The value of the measured E degrees to modern problems related to electron transfer is outlined. image

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页数：6

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