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Synthesis of Novel Rod‐Shaped and Star‐Shaped Fluorescent Phosphane Oxides—Nonlinear Optical Properties and Photophysical Properties
Author(s) -
HaThi MinhHuong,
Souchon Vincent,
Hamdi Abdelwaheb,
Métivier Rémi,
Alain Valérie,
Nakatani Keitaro,
Lacroix Pascal G.,
Genêt JeanPierre,
Michelet Véronique,
Leray Isabelle
Publication year - 2006
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200600464
Subject(s) - chromophore , moiety , fluorescence , molecule , photochemistry , materials science , absorption (acoustics) , excitation , nonlinear optical , oxide , chemistry , optoelectronics , nonlinear system , optics , stereochemistry , organic chemistry , physics , quantum mechanics , composite material
The design of a new class of fluorophores is presented. Some push–pull chromophores (D–π–A) containing polyphenylethynyl units and a phosphane oxide moiety were efficiently prepared from common intermediates. Straightforward syntheses gave novel one‐armed, rod‐shaped and three‐armed, star‐shaped fluorophores. The optical properties of the resulting star‐shaped derivatives were evaluated, showed high fluorescence quantum yields, and their excitation induces very efficient charge redistribution. Moreover, thanks to their push–pull character, the molecules exhibited significant second‐order NLO properties with good transparency, up to 67⋅10 −30 esu at 1907 nm, with an absorption λ max at 369 nm. The effect of the donor group and of the number of phenylethynyl arms have been studied in this work.