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Enhanced two-photon absorption with novel octupolar propeller-shaped fluorophores derived from triphenylamine
Laurent Porrès1, Olivier Mongin, Claudine Katan
1Synthèse et ElectroSynthèse Organiques, CNRS, UMR 6510, Institut de Chimie, Université de Rennes 1, Campus de Beaulieu, Bât. 10A, F-35042 Rennes Cedex, France.
Abstract:
[structure: see text] Novel octupolar fluorophores derived from the symmetrical functionalization of a triphenylamine core with strong acceptor peripheral groups via phenylene-ethynylene linkers have been synthesized and shown to exhibit high fluorescence quantum yields, very large TPA cross-sections in the red-NIR region, and suitable photostability.
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