Influence of the vibrational zero-point energy correction on the amine inversion barrier and the far-infrared spectrum of methylamine

被引:20
|
作者
Smeyers, YG
Villa, M
机构
[1] CSIC, Inst Estructura Mat, Madrid 28006, Spain
[2] Univ Autonoma Metropolitana Iztapalapa, Dept Quim, Mexico City 09340, DF, Mexico
关键词
D O I
10.1016/S0009-2614(00)00603-5
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 vibrational zero-point energy correction is determined for the methyl torsion and amine hydrogen wagging potential energy function. It is found that the amine inversion barrier increases from 1727.27 cm(-1) up to 1850.65 cm(-1) which is in better agreement with the value of 1937 cm(-1) deduced from experiment. In addition, the splittings calculated for the fundamental band reproduce fairly well the experimental data. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
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页码:273 / 278
页数:6
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