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Issue 35, 2018
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Combined reversible switching of ECD and quenching of CPL with chiral fluorescent macrocycles

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Abstract

Straightforward synthesis and resolution of a series of chiral fluorescent macrocycles are presented, together with their electronic circular dichroism (ECD), strong excimer fluorescence (EF, λ 300 to 650 nm) and allied highly circularly polarized luminescence (CPL, glum up to 1.7 × 10−2). The ECD, EF and CPL responses are strongly affected by the presence of metal ions (Na+, Ba2+) thanks to deep conformational changes. While ECD signals can be almost completely reversibly inverted upon the complexation/decomplexation of metal ions in a typical binary response, CPL signals are reversibly quenched concomitantly. The designed macrocycles display thus a remarkable combination of both +/− ECD and on/off CPL reversible switching.

Graphical abstract: Combined reversible switching of ECD and quenching of CPL with chiral fluorescent macrocycles

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Supplementary files

Article information


Submitted
03 Jul 2018
Accepted
30 Jul 2018
First published
01 Aug 2018

This article is Open Access
All publication charges for this article have been paid for by the Royal Society of Chemistry

Chem. Sci., 2018,9, 7043-7052
Article type
Edge Article

Combined reversible switching of ECD and quenching of CPL with chiral fluorescent macrocycles

A. Homberg, E. Brun, F. Zinna, S. Pascal, M. Górecki, L. Monnier, C. Besnard, G. Pescitelli, L. Di Bari and J. Lacour, Chem. Sci., 2018, 9, 7043
DOI: 10.1039/C8SC02935K

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