Synthesis and properties of thiophene oligomers containing o-quinoid skeleton

被引：7
作者：
Ohnishi, H [1 ]
Kozaki, M [1 ]
Okada, K [1 ]
机构：
[1] Osaka City Univ, Grad Sch Sci, Sumiyoshi Ku, Osaka 5585858, Japan
来源：
SYNTHETIC METALS | 2003年 / 135卷 / 1-3期
关键词：
electrochemical methods; UV-vis absorption; polythiophene and derivatives;
D O I：
10.1016/S0379-6779(02)00584-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
alpha-Thienyl or alpha-pyrrolyl groups were bonded to alpha-positions of benzo[2,1-b:3,4-b']dithiophene-4,5-dione via Stille coupling reactions followed by intramolecular benzoin condensations, giving a novel terameric pi-congugated oligomers. UV vis and elctrochemical studies for these oligomers indicate that the heterocyclic substituents selectively destabilize the HOMO-level to result in small HOMO-LUMO gaps.
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页码：85 / 86
页数：2
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