Zwitterionic [4]helicene: a water-soluble and reversible pH-triggered ECD/CPL chiroptical switch in the UV and red spectral regions - Université de Rennes Access content directly
Journal Articles Organic & Biomolecular Chemistry Year : 2016

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

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.
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Dates and versions

hal-01319873 , version 1 (08-07-2016)

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Simon Pascal, Céline Besnard, Francesco Zinna, Lorenzo Di Bari, Boris Le Guennic, et al.. Zwitterionic [4]helicene: a water-soluble and reversible pH-triggered ECD/CPL chiroptical switch in the UV and red spectral regions. Organic & Biomolecular Chemistry, 2016, 14 (20), pp.4590-4594. ⟨10.1039/c6ob00752j⟩. ⟨hal-01319873⟩
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