Počet záznamů: 1
Intense chirality induction in nitrile solvents by a helquat dye monitored by near resonance Raman scattering
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SYSNO ASEP 0461208 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Intense chirality induction in nitrile solvents by a helquat dye monitored by near resonance Raman scattering Tvůrce(i) Šebestík, Jaroslav (UOCHB-X) RID, ORCID
Teplý, Filip (UOCHB-X) RID, ORCID
Císařová, I. (CZ)
Vávra, Jan (UOCHB-X) RID
Koval, Dušan (UOCHB-X) RID, ORCID
Bouř, Petr (UOCHB-X) RID, ORCIDZdroj.dok. Chemical Communications. - : Royal Society of Chemistry - ISSN 1359-7345
Roč. 52, č. 37 (2016), s. 6257-6260Poč.str. 4 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova optical activity ; circular dichroism ; vibrational spectra Vědní obor RIV CC - Organická chemie CEP GA14-00431S GA ČR - Grantová agentura ČR GA13-19213S GA ČR - Grantová agentura ČR GA13-32974S GA ČR - Grantová agentura ČR GA15-09072S GA ČR - Grantová agentura ČR GA16-05935S GA ČR - Grantová agentura ČR Institucionální podpora UOCHB-X - RVO:61388963 UT WOS 000375620400010 EID SCOPUS 84968719030 DOI 10.1039/c6cc01606e Anotace Chirality induction phenomena attract attention because of their relevance to intermolecular interactions encountered in living matter. Usually, such effects are weak. However, enantiomers of a [6]helquat dye were found to induce exceptionally strong chirality in several achiral solvents containing nitrile groups. This effect was observable as an intense Raman optical activity (ROA) induced in acetonitrile, acetonitrile-d(3), and liquid hydrogen cyanide solvents. The observation was verified by measurement of both helquat enantiomers which provided mirror image ROA spectra. Theoretical analysis indicated that the 532 nm laser excitation light was in a near resonance with electronic transitions of the dye, which made the effect observable in very dilute solutions (1 : 200000 helquat to nitrile ratio) and thus the phenomenon can be generally useful in analytical chemistry. Pracoviště Ústav organické chemie a biochemie Kontakt asep@uochb.cas.cz ; Kateřina Šperková, Tel.: 232 002 584 ; Jana Procházková, Tel.: 220 183 418 Rok sběru 2017 Elektronická adresa http://pubs.rsc.org/en/content/articlehtml/2016/cc/c6cc01606e
Počet záznamů: 1