TY - JOUR
T1 - Ethynylene-analogues of hemicurcuminoids
T2 - Synthesis and ground- and excited properties of their boron difluoride complexes
AU - Štefane, Bogdan
AU - Požgan, Franc
AU - Kim, Eunsun
AU - Choi, Eunyoung
AU - Ribierre, Jean Charles
AU - Wu, Jeong Weon
AU - Ponce-Vargas, Miguel
AU - Le Guennic, Boris
AU - Jacquemin, Denis
AU - Canard, Gabriel
AU - Zaborova, Elena
AU - Fages, Frédéric
AU - D'Aléo, Anthony
N1 - Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2017/6/1
Y1 - 2017/6/1
N2 - The synthesis, characterization and (TD)-DFT calculations of the electrochemical and photophysical properties of novel ethynylene-analogues of hemicurcuminoids are described. These dyes are both emissive in solution and in the solid state. While compounds that emit through an efficient charge transfer (CT) state show solvatochromic behaviour associated with low fluorescence quantum yields, those lacking of donor groups show high fluorescence quantum yields of 70–80%, in solution. The latter dyes also present the advantage to emit in the solid state in the visible region with fluorescence quantum yields up to 23%. Their condensed phase spectrum can be bathochromically shifted to the near infrared region (742 nm) by appending a strong donor group.
AB - The synthesis, characterization and (TD)-DFT calculations of the electrochemical and photophysical properties of novel ethynylene-analogues of hemicurcuminoids are described. These dyes are both emissive in solution and in the solid state. While compounds that emit through an efficient charge transfer (CT) state show solvatochromic behaviour associated with low fluorescence quantum yields, those lacking of donor groups show high fluorescence quantum yields of 70–80%, in solution. The latter dyes also present the advantage to emit in the solid state in the visible region with fluorescence quantum yields up to 23%. Their condensed phase spectrum can be bathochromically shifted to the near infrared region (742 nm) by appending a strong donor group.
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U2 - 10.1016/j.dyepig.2017.02.005
DO - 10.1016/j.dyepig.2017.02.005
M3 - Article
AN - SCOPUS:85012055159
VL - 141
SP - 38
EP - 47
JO - Dyes and Pigments
JF - Dyes and Pigments
SN - 0143-7208
ER -