Conformational isomerization of formic acid by vibrational excitation at energies below the torsional barrier

被引：81
作者：
Pettersson, M
Maçoas, EMS
Khriachtchev, L
Fausto, R
Räsänen, M
机构：
[1] Univ Helsinki, Phys Chem Lab, FIN-00014 Helsinki, Finland
[2] Univ Coimbra, CQC, Dept Chem, P-3004535 Coimbra, Portugal
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2003年 / 125卷 / 14期
关键词：
D O I：
10.1021/ja0295016
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Photoinduced conformational isomerization of formic acid has been studied in a low-temperature argon matrix. It is found that conformational isomerization occurs when the photon energy is below the energy barrier for this process. The quantum yield for the process near the top of the barrier is comparable with the quantum yield above the barrier and drops at lower energies. The isomerization takes place via a tunneling mechanism. Copyright © 2003 American Chemical Society.
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页码：4058 / 4059
页数：2
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