Collisional Depolarization of Luminescence of Polyatomic Molecules with Internal Rotations

被引：0

作者：

A. P. Blokhin

机构：

[1] National Academy of Sciences of Belarus,B. I. Stepanov Institute of Physics

来源：

Journal of Applied Spectroscopy | 2021年 / 88卷

关键词：

luminescence depolarization; orientational relaxation; molecular collisions; dynamics of intramolecular rotation;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A generalized diffusion model of rotational depolarization of luminescence of polyatomic molecules with internal rotors is developed assuming independent collision statistics for internal rotations and rotation of the molecules as a whole. The model is used to calculate the collisional depolarization of non-rigid oligonucleotides with fluorescent labels that are in the free state in solutions and in complexes with nanoparticles. Changes in the fluorescence anisotropy during relaxation are analyzed as functions of the ratio of moments of inertia of the moving parts of the molecule and the transition moment orientations. The conditions for possible enhancement of anisotropy and control of structural changes of biomolecules immobilized on nanoparticle surfaces are evaluated.

引用

页码：935 / 944

页数：9

共 50 条

[1] Collisional Depolarization of Luminescence of Polyatomic Molecules with Internal Rotations
Blokhin, A. P.
JOURNAL OF APPLIED SPECTROSCOPY, 2021, 88 (05) : 935 - 944
[2] Effect of Intramolecular Rotation on Collisional Luminescence Depolarization of Polyatomic Molecules
Blokhin, A. P.
Tolkachev, V. A.
JOURNAL OF APPLIED SPECTROSCOPY, 2015, 81 (06) : 930 - 937
[3] Effect of Intramolecular Rotation on Collisional Luminescence Depolarization of Polyatomic Molecules
A. P. Blokhin
V. A. Tolkachev
Journal of Applied Spectroscopy, 2015, 81 : 930 - 937
[4] Collisional depolarization of fluorescence of polyatomic molecules in the gas phase
Blokhin, AP
Gelin, MF
Kalosha, II
Matilitsky, VV
Erohin, NP
SARATOV FALL MEETING '99: LASER PHYSICS AND SPECTROSCOPY, 2000, 4002 : 261 - 266
[5] Depolarization of luminescence of polyatomic molecules in the gas phase as a method of determining the efficiency of collisional transfer of angular momentum
A. P. Blokhin
M. F. Gelin
I. I. Kalosha
V. V. Matylitskii
V. A. Tolkachev
Optics and Spectroscopy, 2003, 95 : 35 - 41
[6] Depolarization of luminescence of polyatomic molecules in the gas phase as a method of determining the efficiency of collisional transfer of angular momentum
Blokhin, AP
Gelin, MF
Kalosha, II
Matylitskii, VV
Tolkachev, VA
OPTICS AND SPECTROSCOPY, 2003, 95 (01) : 35 - 41
[7] Collisional Depolarization of the Luminescence of Asymmetric Top Molecules in the Gas Phase
A. P. Blokhin
M. F. Gelin
Journal of Applied Spectroscopy, 2003, 70 (2) : 216 - 223
[8] Collisional depolarization of fluorescence of polyatomic molecules in the gas phase by excited state quenchers
E. V. Dudko
I. I. Kalosha
V. A. Tolkachev
Optics and Spectroscopy, 2004, 97 : 221 - 225
[9] Collisional depolarization of fluorescence of polyatomic molecules in the gas phase by excited state quenchers
Dudko, EV
Kalosha, II
Tolkachev, VA
OPTICS AND SPECTROSCOPY, 2004, 97 (02) : 221 - 225
[10] CALCULATION OF THE STRUCTURE OF THE ELECTRONIC SPECTRA OF POLYATOMIC MOLECULES WITH CONSIDERATION OF THE ANHARMONICITY OF VIBRATIONS AND INTERNAL ROTATIONS.
Baranov, V.I.
Gribov, L.A.
1600, (41):

← 1 2 3 4 5 →