Non-covalent columnar cyclodextrin-based structures |
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Authors: | I. G. Panova E. V. Matukhina V. I. Gerasimov I. N. Topchieva |
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Affiliation: | (1) Department of Chemistry, Moscow State University, Vorob’evy gory, Moscow, 119992, Russia;(2) Moscow State Pedagogical University, ul. Malaya Pirogovskaya 29, Moscow, 119435, Russia |
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Abstract: | Examples of the formation of ordered ensembles of α-, β-, and γ-cyclodextrins (CDs) molecules with a columnar packing of macrocycles are reported. These ensembles are formed by (1) the supramolecular dissociation of polymer inclusion complexes under the action of organic solvents that are selective with respect to a polymer guest and (2) the fixation of columnar CD aggregates self-organized in aqueous solutions at high temperatures upon the precipitation from water into organic solvents. Specific features of the organization of cyclodextrins in the thus-synthesized structures are studied by X-ray diffraction. Preliminarily oriented polymer inclusion complexes based on corresponding CDs are used as a model with the columnar arrangement of macrocycles. |
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