title: Functional helquats: helical cationic dyes with marked, switchable chiroptical properties in the visible region.
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.
authors.affiliation: 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. teply@uochb.cas.cz.
authors.forename: Paul E
authors.initials: PE
authors.lastname: Reyes-Gutiérrez
authors.forename: Michael
authors.initials: M
authors.lastname: Jirásek
authors.forename: Lukáš
authors.initials: L
authors.lastname: Severa
authors.forename: Pavlína
authors.initials: P
authors.lastname: Novotná
authors.forename: Dušan
authors.initials: D
authors.lastname: Koval
authors.forename: Petra
authors.initials: P
authors.lastname: Sázelová
authors.forename: Jan
authors.initials: J
authors.lastname: Vávra
authors.forename: Andreas
authors.initials: A
authors.lastname: Meyer
authors.forename: Ivana
authors.initials: I
authors.lastname: Císařová
authors.forename: David
authors.initials: D
authors.lastname: Šaman
authors.forename: Radek
authors.initials: R
authors.lastname: Pohl
authors.forename: Petr
authors.initials: P
authors.lastname: Štěpánek
authors.forename: Petr
authors.initials: P
authors.lastname: Slavíček
authors.forename: Benjamin J
authors.initials: BJ
authors.lastname: Coe
authors.forename: Miroslav
authors.initials: M
authors.lastname: Hájek
authors.forename: Václav
authors.initials: V
authors.lastname: Kašička
authors.forename: Marie
authors.initials: M
authors.lastname: Urbanová
authors.forename: Filip
authors.initials: F
authors.lastname: Teplý