Strong molecular alignment in anisotropic fluid media

被引：17

作者：

Bain, AJ

Chandna, P

Butcher, G

机构：

[1] Department of Physics, University of Essex, Colchester CO4 3SQ, Wivenhoe Park

来源：

CHEMICAL PHYSICS LETTERS | 1996年 / 260卷 / 3-4期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1016/0009-2614(96)00841-X

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：

Picosecond polarised fluorescence studies of rhodamine 6G molecules in a 100 mu m free ethylene glycol jet show the production of strong molecular alignment with a degree of ordering between one to two orders of magnitude greater than that attainable for similar systems using conventional fluid alignment techniques. Using a novel variation of the polarised picosecond single-photon counting technique, it has been possible to prepare a range of non-equilibrium molecular orientational distributions in the jet and observe their subsequent evolution. The imposition of order in the flow is seen to have a distinct effect on molecular motion, indicating a strong anisotropy in theta and phi rotational diffusion dynamics.

引用

页码：441 / 446

页数：6

共 24 条

[1] THE RANGE DEPENDENCE OF FLUORESCENCE ANISOTROPY IN MOLECULAR-ENERGY TRANSFER [J].