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Internal motion of an electronically excited molecule in viscoelastic media

Title
Internal motion of an electronically excited molecule in viscoelastic media
Authors
Jee A.-Y.Bae E.Lee M.
Ewha Authors
이민영
SCOPUS Author ID
이민영scopus
Issue Date
2010
Journal Title
Journal of Chemical Physics
ISSN
0021-9606JCR Link
Citation
vol. 133, no. 1
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
The twisting motion of trans-4-[4-(dimethylamino)-styryl]-1- methylpyridinium iodide (4-DASPI) in the excited state was investigated in solutions and various polymers in order to understand dependence of molecular rotor dynamics on viscoelasticity. It was observed that the internal motion of electronically excited 4-DASPI correlates strongly with dynamic viscosity and elastic modulus. Our results also showed that condensed phase dynamics of 4-DASPI are governed by the explicit mode coupling between the rotamerizing coordinate and mechanical properties of viscoelastic media. © 2010 American Institute of Physics.
DOI
10.1063/1.3454724
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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