caa a22 4500 469059397 CHVBK 20180323132852.0 cr unu---uuuuu 170328e19920501xx s 000 0 eng 10.1007/BF01076672 doi (NATIONALLICENCE)springer-10.1007/BF01076672 Harata Kazuaki Research Institute for Polymers and Textiles, 1-1-4 Higashi, Tsukuba, 305, Ibaraki, Japan aut Complex formation of hexakis(2,6-di- O -methyl)- α -cyclodextrin with substituted benzenes in aqueous solution [Elektronische Daten] [Kazuaki Harata] The host-guest interaction of hexakis(2,6-di-O-methyl)-α-cyclodextrin (DM-α-CDx) with substituted benzenes in aqueous solution has been investigated by circular dichroism spectra. From the resemblance of the spectra, it is concluded that the guest molecules are included in the DM-α-CDx ring in a manner similar to that of corresponding α-cyclodextrin complexes. Thermodynamic parameters of the complex formation were determined on the basis of the temperature dependent intensity change of the spectra. In spite of the considerable variation in ΔH and AS values, the free energy does not change much among complexes because of the strong compensation effect. The compensation temperature was 309 ± 11K. Negative values of ΔH and ΔS, suggesting that the complex formation is not governed by the hydrophobic interaction, can be interpreted in terms of the tight binding of the guest molecule within the host cavity. Kluwer Academic Publishers, 1992 Dimethyl- a -cyclodextrin nationallicence induced circular dichroism nationallicence host-guest interaction nationallicence inclusion complex nationallicence Journal of inclusion phenomena and molecular recognition in chemistry Kluwer Academic Publishers 13/1(1992-05-01), 77-86 0923-0750 13:1<77 1992 13 10847 https://doi.org/10.1007/BF01076672 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01076672 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Harata Kazuaki Research Institute for Polymers and Textiles, 1-1-4 Higashi, Tsukuba, 305, Ibaraki, Japan aut NATIONALLICENCE 773 0- Journal of inclusion phenomena and molecular recognition in chemistry Kluwer Academic Publishers 13/1(1992-05-01), 77-86 0923-0750 13:1<77 1992 13 10847 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer