4,7,11,14,18,21-Hexa-t-butyltribenzodecacyclenyl radical:: A six-stage amphoteric redox system
4,7,11,14,18,21-Hexa-t-butyltribenzodecacyclenyl radical:: A six-stage amphoteric redox system
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DOI：
10.1246/bcsj.74.1999
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发表时间：
2001-11-01
影响因子：
4
通讯作者：
Murata, I
中科院分区：
文献类型：
--
作者：
Kubo, T;Yamamoto, K;Murata, I
一个六阶两性氧化还原烃基3（.）制备了含有三个非那烯基单元的共聚物。3（.）表现出六个可逆的氧化还原波，第一氧化（E-1（ox））和还原（E-1（red））电位的数值之和（E-1（sum））很小。3（.）成功地从中性3（.）并通过NMR、ESR、UV-vis-NIR光谱和理论计算进行了表征。自旋和电荷在整个C-3分子3（3+），3（.2+）3（.）和3（3-）。另一方面，3（.2-）显示自旋在一个非那烯基单元上的局域化;这些结果与Jahn-Teller效应引起的扭曲的C-2结构一致。
A six-stage amphoteric redox hydrocarbon radical 3(.) containing three phenalenyl units was prepared. Cyclic voltammogram of 3(.) exhibits six reversible redox waves with a small numerical sum (E-1(sum)) of first oxidation (E-1(ox)) and reduction (E-1(red)) potentials. Some redox states of 3(.) were successfully generated from the neutral 3(.) and characterized by NMR, ESR, UV-vis-NIR spectroscopies, and theoretical calculations. The spin and the charges are delocalized over the entire C-3 molecule of 3(3+), 3(.2+) 3(.) and 3(3-). On the other hand, 3(.2-) shows the localization of the spin on one phenalenyl unit; these results are consistent with the distorted C-2 structure caused by the Jahn-Teller effect.