Beyond the cyanine limit: Peierls distortion and symmetry collapse in a polymethine dye

被引：145

作者：

Tolbert, LM

Zhao, XD

机构：

[1] School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1997年 / 119卷 / 14期

关键词：

D O I：

10.1021/ja9626953

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Theory predicts that cyanine dyes and related linear systems undergo symmetry collapse and bond localization at long chain lengths. Beyond this ''cyanine limit'', the properties of these systems do not extrapolate from their shorter counterparts. To test this prediction, dipyridocyanines have been synthesized and shown to undergo such symmetry collapse with chain lengths as short as 13.

引用

页码：3253 / 3258

页数：6

共 48 条

[1] CHAIN-LENGTH DEPENDENCE OF ELECTRONIC AND ELECTROCHEMICAL PROPERTIES OF CONJUGATED SYSTEMS - POLYACETYLENE, POLYPHENYLENE, POLYTHIOPHENE, AND POLYPYRROLE [J].