Acido- And phototriggered NLO properties enhancement

Lionel Sanguinet, Jean Luc Pozzo, Vincent Rodriguez, Frédéric Adamietz, Frédéric Castet, Laurent Ducasse, Benoît Champagne

Résultats de recherche: Contribution à un journal/une revueArticleRevue par des pairs


In this paper, acido- and phototriggered enhancement of the nonlinear optical (NLO) properties are achieved by combining the 10-(2-arylethenyl) indolino[2,1-b]oxazolidine unit with various styrylic residues. The synthetic pathway allows the preparation of phenyl, naphthyl, anthryl, and phenanthryl derivatives, which have been shown to display photochromic and acidochromic behavior at ambient temperature. The multiaddressable molecular switches are characterized by a large contrast of the NLO response along the reversible transformations. Hyper-Rayleigh scattering (HRS) experiments clearly indicate the strong influence of the electrodonating substituent borne by the aromatic system. Theoretical calculations have been performed for representative molecules showing a good agreement with the experimental hyperpolarizabilities. This enables a better understanding of the NLO responses in terms of structural and electronic parameters for both closed and protonated open forms.

langue originaleAnglais
Pages (de - à)11139-11150
Nombre de pages12
journalJournal of physical chemistry B
Numéro de publication22
Les DOIs
Etat de la publicationPublié - 9 juin 2005

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