Excited state interactions in the doubly hydrogen-bonded jet-cooled dimers of 4-aminophthalimide and 4-amino-N-methylphthalimide

被引：7

作者：

Chen, Y ^{[1
]}

Topp, MR ^{[1
]}

机构：

[1] Univ Penn, Dept Chem, Philadelphia, PA 19104 USA

来源：

CHEMICAL PHYSICS LETTERS | 2002年 / 355卷 / 3-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0009-2614(02)00247-6

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：

The jet-cooled dimer of 4-amino-N-methylphthalimide (4ANMP) has four NH bonds. but the ground-state infrared spectrum shows just two strong N-H-stretch resonances in the range 3100-3800 cm(-1). This confirms a symmetric structure (C,). In the excited state. there are six strong resonances in the same region. falling into two groups of three. A similar pattern is observed for the dimer of 4-aminophthalimide (4AP). These observations suggest that double proton transfer may be occurring across the two N-H...O hydrogen bonds. (C) 2002 Published by Elsevier Science B.V.

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页码：270 / 278

页数：9

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