Issue 94, 2023

Push–pull [7]helicene diimide: excited-state charge transfer and solvatochromic circularly polarised luminescence

Abstract

In this communication we describe a helically chiral push–pull molecule named 9,10-dimethoxy-[7]helicene diimide, displaying fluorescence (FL) and circularly polarised luminescence (CPL) over nearly the entire visible spectrum dependent on solvent polarity. The synthesised molecule exhibits an unusual solvent polarity dependence of FL quantum yield and nonradiative rate constant, as well as remarkable gabs and glum values along with high configurational stability.

Graphical abstract: Push–pull [7]helicene diimide: excited-state charge transfer and solvatochromic circularly polarised luminescence

Supplementary files

Article information

Article type
Communication
Submitted
08 Sep 2023
Accepted
03 Nov 2023
First published
04 Nov 2023

Chem. Commun., 2023,59, 14005-14008

Push–pull [7]helicene diimide: excited-state charge transfer and solvatochromic circularly polarised luminescence

F. Saal, A. Swain, A. Schmiedel, M. Holzapfel, C. Lambert and P. Ravat, Chem. Commun., 2023, 59, 14005 DOI: 10.1039/D3CC04470J

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