Zwitterionic [4]helicene: a water-soluble and reversible pH-triggered ECD/CPL chiroptical switch in the UV and red spectral regions

Pascal, Simon; Besnard, Céline; Zinna, Francesco; Di Bari, Lorenzo; Le Guennic, Boris; Jacquemin, Denis; Lacour, Jérôme

doi:10.1039/C6OB00752J

Scientific article

English

Zwitterionic [4]helicene: a water-soluble and reversible pH-triggered ECD/CPL chiroptical switch in the UV and red spectral regions

ContributorsPascal, Simon; Besnard, Céline; Zinna, Francesco; Di Bari, Lorenzo; Le Guennic, Boris; Jacquemin, Denis; Lacour, Jérôme

Published inOrganic & biomolecular chemistry, vol. 14, no. 20, p. 4590-4594

Publication date2016

Abstract

The chiroptical switching properties of a readily accessible and water-soluble diaza [4]helicene are disclosed. This zwitterionic dye displays pH-dependent absorption and emission properties and this enables a reversible turn on/off of electronic circular dichroism at 300 nm and of circularly polarized luminescence in the red region upon protonation/deprotonation.

Affiliation

Faculté des sciences / Section de chimie et biochimie / Département de chimie organique

Research group

Groupe Lacour

Citation (ISO format)

PASCAL, Simon et al. Zwitterionic [4]helicene: a water-soluble and reversible pH-triggered ECD/CPL chiroptical switch in the UV and red spectral regions. In: Organic & biomolecular chemistry, 2016, vol. 14, n° 20, p. 4590–4594. doi: 10.1039/C6OB00752J

Article (Published version)

Identifiers

PID : unige:83725
DOI : 10.1039/C6OB00752J

Commercial URLhttp://xlink.rsc.org/?DOI=C6OB00752J

ISSN of the journal1477-0520

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Zwitterionic [4]helicene: a water-soluble and reversible pH-triggered ECD/CPL chiroptical switch in the UV and red spectral regions

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