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1991 | 79 | 4 | 457-470
Article title

Anisotropic Fluorescence of Polar Molecules in External Electric Field, Dipole Moments of Para-Disubstituted Transstilbenes in the First Excited Singlet State

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EN
Abstracts
EN
The electric dipole moments μ_{e} in the lowest excited singlet state of nine short-lived para-disubstituted trans-stilbenes were determined experimentally based on the effect of the external electric field on the fluorescence anisotropy. The values of μ_{e} obtained from Liptay's theory with the employment of the Onsager effective field are in satisfactory agreement with those calculated based on the solvatochromic effect. In the case of para-substituted trans-stilbenes with the same donor substituent R = N(CH_{3})_{2} in position 4 and different acceptors R' in position 4', the enhancing electron properties of the acceptor are accompanied by the increase in μ_{g} - the dipole moment in the ground state, and μ_{e} - the dipole moment in the excited state. There exists a linear relation between the values of μ_{e} and μ_{g}.
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EN
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Year
Volume
79
Issue
4
Pages
457-470
Physical description
Dates
published
1991-04
received
1990-06-19
Contributors
author
  • Luminescence Research Group, Institute of Experimental Physics, University of Gdańsk, Wita Stwosza 57, 80-952 Gdańsk, Poland
author
  • Luminescence Research Group, Institute of Experimental Physics, University of Gdańsk, Wita Stwosza 57, 80-952 Gdańsk, Poland
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv79z405kz
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