Authors

D. Beljonne; J. L. Bredas; M. Cha; W. E. Torruellas; G. I. Stegeman; J. W. Hofstraat; W. H. G. Horsthuis;G. R. Mohlmann

Comments

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Abbreviated Journal Title

J. Chem. Phys.

Keywords

TRANS-BETA-CAROTENE; ELECTRONIC EXCITATIONS; STATE; SUSCEPTIBILITY; POLYENES; PROFILES; SPECTRA; MODEL; Physics, Atomic, Molecular & Chemical

Abstract

The one- and two-photon optical absorption spectra as well as the frequency dependent third-harmonic generation response of a side-chain polymer containing 4-dialkylamino-4'-nitro-stilbene (DANS) as its side group have been measured over a wide range of frequency. A three-state model, based on an intermediate neglect of differential overlap/multireference double-configuration interaction description of the excited states, provides a coherent picture of the dynamic response of DANS, but fails in reproducing the red shift observed when going from the linear to the nonlinear absorption spectra; including vibronic coupling within the Franck-Condon approximation improves the fit. (C) 1995 American Institute of Physics.

Journal Title

Journal of Chemical Physics

Volume

103

Issue/Number

18

Publication Date

1-1-1995

Document Type

Article

Language

English

First Page

7834

Last Page

7843

WOS Identifier

WOS:A1995TC85400018

ISSN

0021-9606

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