2015
Reyes-Gutiérrez P.E., Jirásek M., Severa L., Novotná P., Koval D., Sázelová P., Vávra J., Meyer A., Císařová I.,
Šaman D., Pohl R., Štěpánek P., Slavíček P., Coe B.J., Hájek M., Kašička V., Urbanová M., Teplý F.*:
Back cover picture
Functional helquats: helical cationic dyes with marked, switchable chiroptical properties in the visible region.
Chemical Communications 51: 1583-1586, 2015.
![](https://webarchiv.lib.cas.cz:443/wayback/20170506054354im_/http://www.uochb.cz/web/document/cms_library/2018.jpg)
Nath N.K., Severa L., Kunetskiy R.A., Císařová I., Fulem M., Růžička K., Koval D., Kašička V., Teplý F.*, Naumov P.*:
Hot paper
Single-crystal-to-single-crystal transition in an enantiopure [7]helquat salt. The first observation of a reversible phase transition in a helicene-like compound.
Chemistry - A European Journal 21: 13508–13512, 2015.
![](https://webarchiv.lib.cas.cz:443/wayback/20170506054354im_/http://www.uochb.cz/web/document/cms_library/2218.gif)
Sonawane M.R., Vávra J., Šaman D., Císařová I., Teplý F.*:
Synthesis of Helquats Based on Phenanthridinium Units: Four-Step Procedure to Novel Extended Helical Dications
Synthesis 47: 3479-3488, 2015.
![](https://webarchiv.lib.cas.cz:443/wayback/20170506054354im_/http://www.uochb.cz/web/document/cms_library/2481.jpg)