Electrochemical and spectroscopic studies of cation radicals. 4. Stopped-flow determination of triarylaminium radical coupling rate constants
Electrochemical and spectroscopic studies of cation radicals. 4. Stopped-flow determination of triarylaminium radical coupling rate constants
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阳离子自由基的电化学和光谱研究。
DOI：
10.1021/j100469a015
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发表时间：
1979
期刊：
影响因子：
--
通讯作者：
R. Philp
中科院分区：
文献类型：
--
作者：
R. Nelson;R. Philp
研究了在乙腈中铜(II)氧化母胺生成的9种不同的单对位取代三苯胺阳离子的反应。阳离子自由基发生了明显的二级偶联反应，其速率常数范围为4.4X1~8.8X1(T2 NT1 S“1)。这些值与以前用计时电流法测定的这些反应的速率常数有很好的相关性，它们的测定应该更好地确立电化学方法研究类似体系的可靠性。
The reactions of nine different mono-para-substituted triphenylaminium cations produced by oxidation of the parent amines by Cu (II) in acetonitrile have been studied. The cation radicals undergo apparent second-order coupling reactions giving rate constants ranging from 4.4 X 1 () 3 to 8.8 X 1 (T2 NT1 s" 1. These values correlate well with rate constants for these reactions previously determined by chronoamperometric measurements and their determination should better establish the reliability of electrochemical methods for studying similar systems.