On the determination of redox potentials of highly reactive aromatic mono- and multications

On the determination of redox potentials of highly reactive aromatic mono- and multications
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高反应性芳香族单阳离子和多阳离子氧化还原电位的测定

DOI:
10.1021/ja00169a023
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发表时间:
1990
影响因子:
15
通讯作者:
J. Heinze
J. Heinze
中科院分区:
化学1区
文献类型:
--
作者:
M. Dietrich;J. Heinze

文献摘要

被引文献

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在循环伏安法中,使用so2或CH2C12等溶剂、较低的温度和适当的时间尺度,可以准确地测定芳香体系中活性单离子和多电荷阳离子的热力学氧化还原电位。在这些条件下,我们首次测量了萘(1.67 V)、荧光蒽(1.46 V)、三苯基([di] 2.49 V)、-二萘基([mono] 1.58 V,[di] 1.86 V)、苯并[c]苯并-[3,4]辛诺利诺[1,2 - 0]辛诺利([tri] 2.75 V)、六甲氧基三苯基([四]2.27 V)、5,5′-二甲基- 2,2′-二苯基([mono] 1.08 V,[di] 1.68 V)和3,3′-二甲氧基- 2,2′-二苯基([mono] 1.08 V)和3,3′-二甲氧基-2、2'-二噻吩(0.79 V)。
Thermodynamic redox potentials of reactive mono-and multiple charged cations of aromatic systems can be accurately determined by cyclic voltammetry by using solvents such as S02 or CH2C12, a sophisticated sample preparation technique, low temperatures, and an appropriate time scale in the experiment. Theseconditions allow inter alia the measurement, for the first time, of the redox potentials (vs Ag/AgCl) of the reversible mono-, dication (tri-or tetracation) formation of naphthalene (1.67 V), fluoranthene (1.46 V), triphenylene ([di] 2.49 V),,-binaphthyl ([mono] 1.58 V,[di] 1.86 V), benzo [c] benzo-[3, 4] cinnolino [1, 2-o] cinnoline ([tri] 2.75 V), hexamethoxytriphenylene ([tetra] 2.27 V), 5, 5'-dimethyl-2, 2'-bithienyl ([mono] 1.08 V,[di] 1.68 V), and 3, 3'-dimethoxy-2, 2'-bithienyl (0.79 V).