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Article Dans Une Revue French-Ukrainian Journal of Chemistry Année : 2018

A difluorenyl-carbo-cyclohexadiene: prospective chromophore for two-photon absorption

Résumé

For the purpose of outlining structure-property relationships for two-photon absorption (2PA), a "s-locked" carbo -cyclohexadiene with two fluorenyl substituents has been envisaged for comparison with previously studied aromatic carbo -benzene and non-aromatic carbo -quinoid congeners. A representative where the C 10 -π-conjugated fluorenyl moieties are also connected by a C 8 -π-insulating 3,6‐dimethoxy‐3,6‐bis(trifluoromethyl)octa‐1,4,7‐triyn-1,8-diyl edge has thus been synthesized in four steps from known C 8F triyne and C 10 triynyldial, through a [8F+10] cyclization process. In spite of a relatively strong absorbance ( e = 84 800 L.mol -1 .cm -1 at 634 nm), the non-vanishing green fluorescence (at 533 nm) of the chromophore should allow measurements of the 2PA cross section by both the TPEF and Z-scan methods.

Dates et versions

hal-02273707 , version 1 (29-08-2019)

Identifiants

Citer

Iaroslav Baglai, Gabriel Ramos-Ortiz, José-Luis Maldonado, Zoia Voitenko, Valérie Maraval, et al.. A difluorenyl-carbo-cyclohexadiene: prospective chromophore for two-photon absorption. French-Ukrainian Journal of Chemistry, 2018, 6 (2), pp.9-17. ⟨10.17721/fujcV6I2P9-17⟩. ⟨hal-02273707⟩
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