Functional helquats: helical cationic dyes with marked, switchable chiroptical properties in the visible region.

نویسندگان

  • Paul E Reyes-Gutiérrez
  • Michael Jirásek
  • Lukáš Severa
  • Pavlína Novotná
  • Dušan Koval
  • Petra Sázelová
  • Jan Vávra
  • Andreas Meyer
  • Ivana Císařová
  • David Šaman
  • Radek Pohl
  • Petr Štěpánek
  • Petr Slavíček
  • Benjamin J Coe
  • Miroslav Hájek
  • Václav Kašička
  • Marie Urbanová
  • Filip Teplý
چکیده

Helquat dyes are the first helicene-like cationic styryl dyes obtained as separate enantiomers. Their remarkable chiroptical properties are due to the unique combination of a cationic hemicyanine chromophore and a helicene-like motif. The magnitude of the ECD response and the pH switching along with their positioning in the visible region are unprecedented among helicenoids.

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عنوان ژورنال:
  • Chemical communications

دوره 51 9  شماره 

صفحات  -

تاریخ انتشار 2015