FORMATION OF SUPRAMOLECULAR STRUCTURES IN THE [beta]-CYCLODEXTRIN-[beta]-RESORCYLIC ACID SYSTEM

It was found with the help of spectrophotometry, IR spectroscopy, X-ray phase analysis, and thermogravimetry, that new supramolecular structures in the [beta]-cyclodextrin-[beta]-resorcylic acid system are generated as a result of a spontaneous exothermic process. It was proven that the inclusion co...

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Bibliographic Details
Published in:	Journal of applied spectroscopy Vol. 84; no. 3; pp. 466 - 471
Main Authors:	Belyakova, L.A, Lyashenko, D.Yu, Dziazko, M.A, Oranskaya, E.I, Gornikov, Yu.I
Format:	Journal Article
Language:	English
Published:	Springer 01-07-2017
Subjects:	Analysis Cyclodextrins Van der Waals forces
Online Access:	Get full text
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Summary:	It was found with the help of spectrophotometry, IR spectroscopy, X-ray phase analysis, and thermogravimetry, that new supramolecular structures in the [beta]-cyclodextrin-[beta]-resorcylic acid system are generated as a result of a spontaneous exothermic process. It was proven that the inclusion complexes of the host-guest type with a 1:1 ratio between [beta]-cyclodextrin and the molecular form of [beta]-resorcylic acid (or its monovalent anion) are formed through van der Waals interactions of the aromatic ring of [beta]-resorcylic acid with the inner hydrophobic cavity of [beta]-cyclodextrin. It was shown that partial displacement of water molecules from the inner cavity of the cyclic oligosaccharide and complete immersion of [beta]-resorcylic acid molecule inside it occur in this case; thermal stability of [beta]-resorcylic acid increases.
ISSN:	0021-9037 1573-8647
DOI:	10.1007/s10812-017-0493-4