TIME-RESOLVED INFRARED STUDY OF THE RELAXATION PROCESS OF THE INTRAMOLECULAR EXCITED-STATE PROTON-TRANSFER IN 2-NAPHTHYL-3-HYDROXYCHROMONE

被引：8
|
作者：
ITOH, M
YUZAWA, T
MUKAIHATA, H
HAMAGUCHI, H
机构：
[1] KANAZAWA UNIV,FAC PHARMACEUT SCI,KANAZAWA,ISHIKAWA 920,JAPAN
[2] KANAGAWA ACAD SCI & TECHNOL,MOLEC SPECT LAB,KAWASAKI,KANAGAWA 213,JAPAN
来源：
CHEMICAL PHYSICS LETTERS | 1995年 / 233卷 / 5-6期
关键词：
D O I：
10.1016/0009-2614(94)01494-G
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：
Sub-microsecond time-resolved infrared spectroscopy has been used to investigate the ground-state relaxation process following the excited-state proton transfer in 2-(2'-naphthyl)-3-hydroxychromone in chloroform. Two transient species with decay times of 5.3 mu s (1270 and 1230-1260 cm(-1)) and 500-600 mu s (1220-1240 cm(-1)) were observed. These transient species seem to be attributable to ground-state tautomers. This observation is consistent with those by transient absorption and two-step laser-induced fluorescence.
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页码：550 / 554
页数：5
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