Density functional calculation of structure and vibrational spectra of polyenes

被引:33
|
作者
Schettino, V
Gervasio, FL
Cardini, G
Salvi, PR
机构
[1] Univ Florence, Dipartimento Chim, Lab Spettroscopia Mol, I-50121 Florence, Italy
[2] European Lab Nonlinear Spect LENS, I-50125 Florence, Italy
来源
JOURNAL OF CHEMICAL PHYSICS | 1999年 / 110卷 / 06期
关键词
D O I
10.1063/1.477847
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 frequencies of a number of all trans polyenes H-(CH= CH)(n) - H ranging from n = 1 to n = 2 have been calculated within the density functional approach using a generalized gradient corrected exchange-correlation functional and a gaussian basis set. A remarkably good agreement with available experimental data is obtained. A correlation of the normal frequencies along the polyene series is presented describing the motions according to a nodal analysis. The results obtained are also correlated with the vibrations of an infinite polyenic chain. (C) 1999 American Institute of Physics. [S0021-9606(99)51706-6].
引用
收藏
页码:3241 / 3250
页数:10
相关论文
共 50 条