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Title

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

Authors
Górecki, Marcin
Pescitelli, Gennaro
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Published in Chemical Science. 2018, vol. 9, no. 35, p. 7043-7052
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.
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Research group Groupe Lacour
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HOMBERG, Alexandre et al. Combined reversible switching of ECD and quenching of CPL with chiral fluorescent macrocycles. In: Chemical Science, 2018, vol. 9, n° 35, p. 7043-7052. https://archive-ouverte.unige.ch/unige:107800

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Deposited on : 2018-09-14

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