Reyes-Gutiérrez Paul E, Jirásek Michael, Severa Lukáš, Novotná Pavlína, Koval Dušan, Sázelová Petra, Vávra Jan, Meyer Andreas, Císařová Ivana, Šaman David, Pohl Radek, Štěpánek Petr, Slavíček Petr, Coe Benjamin J, Hájek Miroslav, Kašička Václav, Urbanová Marie, Teplý Filip
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.
Chem Commun (Camb). 2015 Jan 31;51(9):1583-6. doi: 10.1039/c4cc08967g.
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.
Helquat染料是首批以单独对映体形式获得的类螺旋烯阳离子苯乙烯基染料。它们卓越的手性光学性质归因于阳离子半菁发色团和类螺旋烯基序的独特组合。在类螺旋化合物中，ECD响应的大小、pH转换以及它们在可见光区域的位置都是前所未有的。
