Acido- And phototriggered NLO properties enhancement

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

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)11139-11150
Number of pages12
JournalJournal of physical chemistry B
Issue number22
Publication statusPublished - 9 Jun 2005


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