FORMATION OF SUPRAMOLECULAR STRUCTURES IN THE β-CYCLODEXTRIN- β-RESORCYLIC ACID SYSTEM
Abstract
It was found with the help of spectrophotometry, IR spectroscopy, X-ray phase analysis, and thermogravimetry, that new supramolecular structures in the β-cyclodextrin-β-resorcylic acid system are generated as a result of the spontaneous exothermic process. It was proved that the inclusion complexes of the host-guest type with 1:1 ratio between β-cyclodextrin and molecular form of β-resorcylic acid (or its monovalent anion) are formed through the van der Waals interactions of the aromatic ring of β-resorcylic acid with the inner hydrophobic cavity of β-cyclodextrin. It was shown that there are the partial displacement of water molecules from the inner cavity of the cyclic oligosaccharide and the complete immersion of β-resorcylic acid molecule inside it; the thermal stability of β-resorcylic acid increases.
Keywords
β-циклодекстрин,
β-резорциловая кислота,
супрамолекулярные структуры,
комплексы включения,
УФ и ИК спектроскопия,
рентгенофазовый анализ,
термогравиметрия,
β-cyclodextrin,
β-resorcylic acid,
supramolecular structures,
inclusion complexes,
UV-IR spectroscopy,
X-ray phase analysis,
thermogravimetry
For citations:
Belyakova L.A., Lyashenko D.Yu., Dziazko M.A., Oranskaya E.I., Gornikov Yu.I. FORMATION OF SUPRAMOLECULAR STRUCTURES IN THE β-CYCLODEXTRIN- β-RESORCYLIC ACID SYSTEM. Zhurnal Prikladnoii Spektroskopii. 2017;84(3):450-456. (In Russ.)
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