Issue 9, 2015
From the journal:

Chemical Communications

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

Paul E. Reyes-Gutiérrez,a   Michael Jirásek,a   Lukáš Severa,a   Pavlína Novotná,b   Dušan Koval,a   Petra Sázelová,a   Jan Vávra,a   Andreas Meyer,a   Ivana Císařová,c   David Šaman,a   Radek Pohl,a   Petr Štěpánek,a   Petr Slavíček,d   Benjamin J. Coe,e   Miroslav Hájek,a   Václav Kašička,a   Marie Urbanováb  and  Filip Teplý*a  

* Corresponding authors

a Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo n. 2, 166 10 Prague 6, Czech Republic
E-mail: teply@uochb.cas.cz

b Department of Analytical Chemistry and Department of Physics and Measurements, Institute of Chemical Technology, Technická 5, 166 28 Prague 6, Czech Republic

c Department of Inorganic Chemistry, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic

d Department of Physical Chemistry, Institute of Chemical Technology, Technická 5, 166 28 Prague 6, Czech Republic

e School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK

Abstract

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.

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

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Article information

DOI
https://doi.org/10.1039/C4CC08967G
Article type
Communication
Submitted
10 Nov 2014
Accepted
15 Dec 2014
First published
15 Dec 2014
This article is Open Access
Creative Commons BY-NC license

Chem. Commun., 2015,51, 1583-1586

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

P. E. Reyes-Gutiérrez, M. Jirásek, L. Severa, P. Novotná, D. Koval, P. Sázelová, J. Vávra, A. Meyer, I. Císařová, D. Šaman, R. Pohl, P. Štěpánek, P. Slavíček, B. J. Coe, M. Hájek, V. Kašička, M. Urbanová and F. Teplý, Chem. Commun., 2015, 51, 1583 DOI: 10.1039/C4CC08967G

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