Zwitterionic [4]helicene: a water-soluble and reversible pH-triggered ECD/CPL chiroptical switch in the UV and red spectral regions. Issue 20 (3rd May 2016)

• Record Type: Journal Article
• Authors: Pascal, Simon; Besnard, Céline; Zinna, Francesco; Di Bari, Lorenzo; Le Guennic, Boris; Jacquemin, Denis; Lacour, Jérôme
• Is Part Of: Organic & biomolecular chemistry. Volume 14:Issue 20(2016)
• Page Start: 4590
• Page End: 4594
• Publication Date: 2016-05-03
• Subjects: Chemistry, Organic -- Periodicals; Bioorganic chemistry -- Periodicals; Chemistry, Physical organic -- Periodicals; 547
• DOI: 10.1039/c6ob00752j
• Languages: English
• ISSNs: 1477-0520

Abstract

Abstract : The chiroptical switching properties of a readily accessible and water-soluble diaza [4]helicene are disclosed. 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.