POLARON AND BIPOLARON FORMATION ON ISOLATED-MODEL THIOPHENE OLIGOMERS IN SOLUTION

被引：112
作者：
FICHOU, D
HOROWITZ, G
GARNIER, F
机构：
[1] Laboratoire des Matériaux Moléculaires, CNRS, 94320 Thiais
来源：
SYNTHETIC METALS | 1990年 / 39卷 / 01期
关键词：
D O I：
10.1016/0379-6779(90)90207-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Polarons (radical cations) and bipolarons (dications) have been quantitatively and successively generated on isolated model thiophene oligomers nT (n = 3, 4, 5, 6) in solution and characterized by Vis-NIR absorption and ESR spectroscopies. The optical spectra of the nT.+ and nT++ species, respectively produced in the first and second steps of the stoichiometric FeCl3 oxidation of neutral nT molecules, exhibit extremely narrow and well-resolved bands in the visible and near-infrared region. It is shown that these non-interacting oligomers, particularly the hexamer 6T, can be considered as model systems for doped polythiophene.
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页码：125 / 131
页数：7
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