EFFECT OF MOLECULAR STRUCTURE NONRIGIDITY ON ANISOTROPY OF DIPOLE ABSORPTION CROSS SECTION

被引：0
|
作者：
Tolkachev, V. A. [1 ]
Blokhin, A. P. [1 ]
机构：
[1] Natl Acad Sci Belarus, BI Stepanov Phys Inst, Minsk 220072, BELARUS
来源：
JOURNAL OF APPLIED SPECTROSCOPY | 2011年 / 77卷 / 06期
关键词：
cross section anisotropy; dipole transition; molecular nonrigidity; nonrigid top; rotation disturbance; FLUORESCENCE POLARIZATION; COMPLEX-MOLECULES; LUMINESCENCE;
D O I：
10.1007/s10812-011-9402-4
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
The influence of the nonrigidity of free complex asymmetric top molecules on the anisotropy of the absorption cross section over various rotational configurations has been studied under conditions where the total angular momentum is conserved. It is shown that the nonrigidity-induced cross section anisotropy is maximal for the optical transition with the dipole moment collinear to the axis of the molecule's mean moment of inertia and rapidly decreases with the rise of the intramolecular flexibility. For all types of tops, disturbances from internal motions are stronger in the region where the principal axes of inertia are collinear with the total rotational angular momentum.
引用
收藏
页码：778 / 783
页数：6
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