Toroidal hopping of a single hole through the circularly-arrayed naphthyl groups in hexanaphthylbenzene cation radical

被引:35
作者
Chebny, Vincent J. [1 ]
Shukla, Ruchi [1 ]
Rathore, Rajendra [1 ]
机构
[1] Univ Wisconsin, Dept Chem, Milwaukee, WI 53201 USA
关键词
D O I
10.1021/jp063654o
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Synthesis of a dendritic ( soluble) hexanaphthylbenzene derivative is described in which the six naphthyl groups are connected to the central benzene ring in a propeller-shaped arrangement. Observation of multiple oxidation waves in its cyclic voltammogram as well as an intense charge-resonance transition ( extending beyond 1600 nm) in its cation radical, generated by laser-flash photolysis using photoexcited chloranil as an oxidant, suggests that a single hole is mobilized via electron transfer ( or hopping) over six identical ( circularly arrayed) redox centers.
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页码:13003 / 13006
页数:4
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