FEMTOSECOND DYNAMICS OF HYDROGEN-BONDING SOLVENTS - FORMAMIDE AND N-METHYLFORMAMIDE IN ACETONITRILE, DMF, AND WATER

被引：197
|
作者：
CHANG, YJ
CASTNER, EW
机构：
[1] Chemistry Department, Brookhaven National Laboratory, Building 555A, Upton
来源：
JOURNAL OF CHEMICAL PHYSICS | 1993年 / 99卷 / 01期
关键词：
D O I：
10.1063/1.465790
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：
We have used optical-heterodyne-detected optical Kerr effect (OHD-OKE) spectroscopy to measure the ultrafast dynamical profile of the amide series formamide (FA), N-methylformamide (NMF), and N,N-dimethylformamide (DMF). We have studied the concentration dependence of binary solutions of FA and NMF using DMF, water, and acetonitrile as cosolvents. Our results show an underdamped librational motion with a period of about 100 cm-1 in both FA and NMF, which also occurs in the binary solutions. The significance of these results for ultrafast chemical reactions in solution is discussed.
引用
收藏
页码：113 / 125
页数：13
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