Title

Solvent effect on the steady-state fluorescence anisotropy of two-photon absorbing fluorene derivatives

Authors

Authors

K. D. Belfield; M. V. Bondar; O. D. Kachkovsky; O. V. Przhonska;S. Yao

Comments

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Abbreviated Journal Title

J. Lumines.

Keywords

solvatochromic; two-photon absorbing fluorene derivatives; excitation; anisotropy; fluorescence; INTRAMOLECULAR CHARGE-TRANSFER; DIELECTRIC FRICTION; ABSORPTION; SOLVATION; MOLECULES; CHROMOPHORES; DYNAMICS; SOLVATOCHROMISM; POLYMERIZATION; ENVIRONMENT; Optics

Abstract

The effect of solvent polarity on the fluorescence properties of several two-photon absorbing fluorene derivatives was investigated. A strong solvatochromic effect was observed for symmetrical fluorene compound, which can be explained by large changes in the quadrupolar moment under excitation. Limiting values of excitation anisotropy of the investigated fluorenes exhibited a dependence on solvent polarity, and the angles between the absorption and emission transition dipole moments decrease in polar solvents by more than a factor of two. (C) 2006 Elsevier B.V. All rights reserved.

Journal Title

Journal of Luminescence

Volume

126

Issue/Number

1

Publication Date

1-1-2007

Document Type

Article

Language

English

First Page

14

Last Page

20

WOS Identifier

WOS:000246640200003

ISSN

0022-2313

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