Separation of 2-Bromobutane, 2-Chlorobutane, 2-Chloropentane, and 2-Butanol Enantiomers Using a Stationary Phase Based on a Supramolecular Uracil Structure
- Авторлар: Nafikova A.1, Allayarova D.1, Gus’kov V.1
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Мекемелер:
- Department of Chemistry, Bashkir State University
- Шығарылым: Том 74, № 6 (2019)
- Беттер: 565-569
- Бөлім: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/183229
- DOI: https://doi.org/10.1134/S1061934819060078
- ID: 183229
Дәйексөз келтіру
Аннотация
We proposed a new chiral stationary phase based on a supramolecular uracil structure with induced chirality. According to the Kondepudi effect, mechanical stirring leads to the formation of a supramolecular structure layer on the surface of an adsorbent with a predominance of one of types of chiral supramolecular clusters. The obtained stationary phase was used for the gas-chromatographic separation of enantiomers of 2-bromobutane, 2-chlorobutane, 2-chloropentane, and 2-butanol. The effectiveness of a 1-m column packed with an inert stationary phase modified with uracil is 200–400 theoretical plates. The enantiomers of 2-bromobutane and 2-chlorobutane were completely separated using the proposed stationary phase in 210 and 180 s, respectively, at 45°C. The enantiomers of 2-chloropentane were separated at 60 and 65°C in 170 and 160 s, respectively. The enantiomers of 2-butanol were partially separated at 100°C. The enantioselectivity of the proposed stationary phase is probably associated with the adsorption of one enantiomer outside the cavity of the supramolecular structure and the other enantiomer inside it.
Негізгі сөздер
Авторлар туралы
A. Nafikova
Department of Chemistry, Bashkir State University
Email: guscov@mail.ru
Ресей, Ufa, Bashkortostan, 450076
D. Allayarova
Department of Chemistry, Bashkir State University
Email: guscov@mail.ru
Ресей, Ufa, Bashkortostan, 450076
V. Gus’kov
Department of Chemistry, Bashkir State University
Хат алмасуға жауапты Автор.
Email: guscov@mail.ru
Ресей, Ufa, Bashkortostan, 450076