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Functionalized cationic [4]helicenes with unique tuning of absorption, fluorescence and chiroptical properties up to the far-red range

Published inChemical science, vol. 7, no. 7, p. 4685-4693
Publication date2016
Abstract

Unprecedented regioselective post-functionalization of racemic and enantiopure cationic diaza [4]helicenes is afforded. The peripheral auxochrome substituents allow a general tuning of the electrochemical, photophysical and chiroptical properties of the helical dyes (26 examples). For instance, electronic absorption and circular dichroism are modulated from the orange to near-infrared spectral range (575–750 nm), fluorescence quantum efficiency is enhanced up to 0.55 (631 nm) and circularly polarized luminescence is recorded in the red (|glum| ∼ 10−3).

Citation (ISO format)
HERNANDEZ DELGADO, Irène et al. Functionalized cationic [4]helicenes with unique tuning of absorption, fluorescence and chiroptical properties up to the far-red range. In: Chemical science, 2016, vol. 7, n° 7, p. 4685–4693. doi: 10.1039/C6SC00614K
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ISSN of the journal2041-6520
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Creation06/22/2016 9:31:00 AM
First validation06/22/2016 9:31:00 AM
Update time03/15/2023 12:28:54 AM
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