Reference : Structure-second-order polarizability relationship in chromophores incorporating a sp...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/4227
Structure-second-order polarizability relationship in chromophores incorporating a spacer: a joint experimental and theoretical study
English
Maertens, Christophe [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Detrembleur, Christophe mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Dubois, Philippe [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Jérôme, Robert mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Boutton, C. [University of Leuven (KUL) > Center for Research on Molecular Electronics and Photonics > Laboratory for Chemical and Biological Dynamics > >]
Persoons, A. [University of Leuven (KUL) > Center for Research on Molecular Electronics and Photonics > Laboratory for Chemical and Biological Dynamics > >]
Kogej, T. [University of Mons-Hainaut (UMH) > Center for Research in Molecular Electronics and Photonics > Laboratory for Chemistry of Novel Materials > >]
Brédas, Jean-Luc [University of Mons-Hainaut (UMH) > Center for Research in Molecular Electronics and Photonics > Laboratory for Chemistry of Novel Materials > >]
4-Jan-1999
Chemistry : A European Journal
Wiley VCH Verlag
5
1
369-380
Yes (verified by ORBi)
International
0947-6539
1521-3765
[en] nonlinear optics
[en] A joint theoretical and experimental study is reported on the structure-polarizability relationship in a novel type of push-pull conjugated system which contains a spacer within the conjugated backbone. The chromo-phores are based on a dithienyl conjugation pathway, spaced by a keto group, and selectively end-capped by a donor and an acceptor. Four chromophores were synthesized, in which the strength of the acceptor group and the length of the conjugated path were varied. The electronic properties of two model compounds were studied theoretically by means of correlated quantum-chemical calculations. The degree of ground-state polarization was varied in the calculations by the application of an external electric field and varied experimentally by the modification of the dielectric constant of a binary mixture of solvents. The linear and nonlinear optical properties of the compounds (measured in solution by hyper-Rayleigh scattering) are discussed in detail.
Center for Education and Research on Macromolecules (CERM)
Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; Fonds pour la formation à la Recherche dans l'Industrie et dans l'Agriculture (Communauté française de Belgique) - FRIA ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; flemish executive (IWT) ; IBM
Researchers
http://hdl.handle.net/2268/4227
10.1002/(SICI)1521-3765(19990104)5:1<369::AID-CHEM369>3.0.CO;2-5
http://www3.interscience.wiley.com/cgi-bin/fulltext/10049180/PDFSTART

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