How single and bifurcated hydrogen bonds influence proton-migration rate constants, redox, and electronic properties of phenoxyl radicals

被引：55

作者：

Thomas, F

Jarjayes, O

Jamet, M

Hamman, S

Saint-Aman, E

Duboc, C

Pierre, JL

机构：

[1] Univ Grenoble 1, CNRS, UMR 5616,Lab Chim Biomimet, LEDSS,ICMG FR 2607, F-38041 Grenoble 9, France

[2] Univ Grenoble 1, CNRS, UMR 5616,Lab Chim Theor, LEDSS,ICMG FR 2607, F-38041 Grenoble 9, France

[3] Univ Grenoble 1, CNRS, UMR 5630, LEOPR,ICMG FR 2607, F-38041 Grenoble 9, France

[4] CNRS, UPR 5021, MPI, High Magnet Field Lab Genoble, F-38042 Grenoble 9, France

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2004年 / 43卷 / 05期

关键词：

electron transfer; EPR spectroscopy; hydrogen bonds; proton transfer; radicals;

D O I：

10.1002/anie.200352368

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Hydrogen-bonded phenoxyl radicals are made and the strength of the hydrogen bond between the O(phenoxyl) and the H(ammonium) atoms strongly affects their stability. The rate constants for the intramolecular proton-migration process in these systems are reported and a bifurcated hydrogen-bonded system has been characterized (see model). Investigations show that the proton transfer from the phenoxyl-radical cation to the tertiary amine is assisted by a neighboring nitrogen atom.

引用

页码：594 / 597

页数：4

共 27 条

[1] A phenoxyl radical complex of copper(II) [J].