Journal
DYES AND PIGMENTS
Volume 176, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2020.108183
Keywords
BODIPY; Truxene; Synthesis; Photophysical properties; Two-photon absorption; Electrochemistry
Funding
- CNRS (UMR 6302)
- Universite Bourgogne Franche-Comte
- Conseil Regional de Bourgogne through the PARI II CDEA project [2015-9205AAQ033S04150]
- European Regional Development Fund (FEDER-FSE Bourgogne 2014/2020)
- National Key R&D Program of China [2016YFD0600804]
- National Natural Science Foundation of China [21301092]
- Natural Science Foundation of Jiangsu Province, P. R. China [BK20151513]
- French Ministry of Research (MENSR)
- IGDA [2016-6200FE003S00257]
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A series of mono- and bis-BODIPY substituted truxene derivatives were synthesized by the Knoevenagel condensation reaction and were fully characterized by NMR and HRMS. The photophysical properties of these new dyes have been investigated by UV-vis absorption spectroscopy, steady-state as well as time-resolved fluorescence spectroscopy and two-photon excited spectroscopy. Their electrochemical properties were investigated using cyclic voltammetry. The new dyes exhibit excellent photophysical properties in red to near-infrared region, including large extinction coefficients and high fluorescence quantum yields in methylene chloride solutions. These truxene-BODIPY dyads and triads also exhibit remarkable two-photon absorption cross section sigma(2) up to 6000 GM at 800 nm.
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