An experimental test of C-N bond twisting in the TICT state:: Syn-anti photoisomerization in 2-(N-methyl-N-isopropylamino)-5-cyanopyridine

被引：77

作者：

Dobkowski, J

Wójcik, J

Kozminski, W

Kolos, R

Waluk, J

Michi, J

机构：

[1] Polish Acad Sci, Inst Phys Chem, PL-01224 Warsaw, Poland

[2] Inst Biochem & Biophys, PL-02106 Warsaw, Poland

[3] Univ Warsaw, Dept Chem, PL-02093 Warsaw, Poland

[4] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2002年 / 124卷 / 11期

关键词：

D O I：

10.1021/ja012326t

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A previously untested essential consequence of the "TICT" (twisted internal charge transfer) interpretation of the nature of the "anomalous" excited state of p-dimethylaminobenzonitrile (1) and related compounds has now been verified: at -90 °C, the dual fluorescence of a desymmetrized analogue, 2-(N-methyl-N-isopropylamino)-5-cyanopyridine (2), in methanol (MeOH) is accompanied by syn-anti isomerization around the C-N bond, whereas its ordinary fluorescence in tetrahydrofuran is not. Copyright © 2002 American Chemical Society.

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页码：2406 / 2407

页数：2

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