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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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Additional URL for this publicationhttp://xlink.rsc.org/?DOI=C6SC00614K
Journal ISSN2041-6520
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Creation22/06/2016 09:31:00
First validation22/06/2016 09:31:00
Update time15/03/2023 00:28:54
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