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.

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

ZINNA, FRANCESCO;DI BARI, LORENZO;
2016-01-01

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.
2016
Pascal, Simon; Besnard, Céline; Zinna, Francesco; DI BARI, Lorenzo; Le Guennic, Boris; Jacquemin, Denis; Lacour, Jérôme
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/826752
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