Enantioseparation and estimation of racemization barriers of selected helquats and their derivatives by capillary electrophoresis using sulfated cyclodextrins as chiral selectors

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F18%3A00498017" target="_blank" >RIV/61388963:_____/18:00498017 - isvavai.cz</a>
Result on the web
<a href="http://www.ce-ce.org/user_uploads/program/CECE%202018%20Proceedings_WOS.pdf" target="_blank" >http://www.ce-ce.org/user_uploads/program/CECE%202018%20Proceedings_WOS.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Enantioseparation and estimation of racemization barriers of selected helquats and their derivatives by capillary electrophoresis using sulfated cyclodextrins as chiral selectors
Original language description
Anionic highly sulfated β- and γ-cyclodextrins (S-CDs) and single-isomer heptakis-(2,3-diacetyl-6-sulfato)-β-CD (14Ac-7S-β-CD) were used for chiral separation of [5], [6] and [7]-ring helquats and helquat styryl dyes by capillary electrophoresis (CE) in the background electrolyte composed of 22 mM NaOH/35 mM H3PO4, pH 2.4. The CE method was applied for monitoring of racemization of eight helquats and helical dyes. Rate constant k of conversion, half-life T1/2 of racemization, and activation Gibbs free energy ΔGǂ of interconversion of one enantiomer into the other were calculated from the dependence of natural logarithm of enantiomeric excess (ee) on time using linear regression analysis.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
CECE 2018. 15th International Interdisciplinary Meeting on Bioanalysis
ISBN
978-80-904959-5-1
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
264-267
Publisher name
Ústav analytické chemie AV ČR, v. v. i.
Place of publication
Brno
Event location
Brno
Event date
Oct 15, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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