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Wiley, ChemPhysChem, 5(8), p. 723-734, 2007

DOI: 10.1002/cphc.200600689

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Effect of Branching on Two-Photon Absorption in Triphenylbenzene Derivatives

Journal article published in 2007 by Francesca Terenziani ORCID, Céline Le Droumaguet, Claudine Katan ORCID, Olivier Mongin, Mireille Blanchard-Desce
This paper is available in a repository.
This paper is available in a repository.

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Abstract

Claudine Katan ‘s present address : CNRS UMR6082 FOTON, INSA de Rennes, 20 avenue des Buttes de Coësmes, CS 70839, 35708 RENNES cedex 7, France ; International audience ; The photophysical and linear and nonlinear spectral properties of octupolar compounds with a triphenylbenzene core are investigated and compared with properties of corresponding dipolar branches. A correlation is found between the solvatochromic behavior and the two-photon absorption cross section. Moreover, the nature of the core is found to be responsible for the nature of the coupling between branches; in the studied case only (weak) electrostatic interactions are effective, while other cores, like the triphenylamine moiety, are able to promote coherent coupling between the branches, leading to strongly nonadditive properties.