Effective control of optical purity by chiral HPLC separation for ester-based liquid crystalline materials forming anticlinic smectic phases

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F21%3A43920606" target="_blank" >RIV/60461373:22340/21:43920606 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/21:00541667 RIV/00216208:11310/21:10424447

Result on the web

<a href="https://www.tandfonline.com/doi/full/10.1080/02678292.2020.1762937" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/02678292.2020.1762937</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/02678292.2020.1762937" target="_blank" >10.1080/02678292.2020.1762937</a>

Result language

angličtina

Original language name

Effective control of optical purity by chiral HPLC separation for ester-based liquid crystalline materials forming anticlinic smectic phases

Original language description

Currently, effective control of optical purity by chiral separation of (S) and (R) enantiomers remains a relevant and highlighted task when designing new chiral organic materials in general, especially for self-assembling materials possessing synclinic and anticlinic smectic phases. An efficient methodology for accomplishing this task was developed and verified with a series of chiral fluorinated liquid-crystalline materials with lateral substitution on the molecular core. The self-assembling behaviour of new racemic materials was established. Upon cooling from the isotropic phase, all materials possessed orthogonal, synclinic and anticlinic smectic mesophases. The materials were available with four fluorine substitution patterns and in racemic and pure (R) and (S) enantiomer forms. Chiral high-performance liquid chromatography was accomplished using polysaccharide-based chiral stationary phases. All separations were performed in normal chromatographic mode, and the baseline separation of all enantiomer pairs was achieved using chiral stationary phases based on derivatised amylose and cellulose. The enantiomer elution order for racemic mixtures was verified by comparing their retention times with those of the respective pure (R) and (S) enantiomers. Interestingly, two materials demonstrated an unexpected switch in enantiomer elution order. This is very important information that is useful, for instance, for potential utilisation in preparative scale chiral chromatography. © 2020, © 2020 Informa UK Limited, trading as Taylor &amp; Francis Group.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10406 - Analytical chemistry

Project

<a href="/en/project/GA19-03564S" target="_blank" >GA19-03564S: Smart supramolecular photochromic nanostructures</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Liquid Crystals

ISSN

0267-8292

e-ISSN

1366-5855

Volume of the periodical

48

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

43-53

UT code for WoS article

000551613100001

EID of the result in the Scopus database

2-s2.0-85088541457