COMPLEXATION OF INORGANIC ANIONS WITH HEPTAKIS(6-BUTYLAMINO-6-DEOXY)-BETA-CYCLODEXTRIN AND ITS ANALOGS IN ACIDIC MEDIA

Authors
MATSUI Y TANEMURA E NONOMURA T
Citation
Y. Matsui et al., COMPLEXATION OF INORGANIC ANIONS WITH HEPTAKIS(6-BUTYLAMINO-6-DEOXY)-BETA-CYCLODEXTRIN AND ITS ANALOGS IN ACIDIC MEDIA, Bulletin of the Chemical Society of Japan, 66(10), 1993, pp. 2827-2831
Citations number
13
Categorie Soggetti
Chemistry
Journal title
Bulletin of the Chemical Society of Japan → ACNP
ISSN journal
00092673
Volume
66
Issue
10
Year of publication
1993
Pages
2827 - 2831
Database
ISI
SICI code
0009-2673(1993)66:10<2827:COIAWH>2.0.ZU;2-K
Abstract
Heptakis(6-butylamino-6-deoxy)-beta-cyclodextrin (2) forms 1:1 complex es with several inorganic anions in 0.10 mol dm-3 HCI or DCI at 25-deg rees-C. The binding constant for a complex of 2 with the SO42- ion was remarkably larger than those for complexes of 2 with univalent anions and those for complexes of the alpha- (1) and gamma-cyclodextrin (3) analogs with the SO42- ion. The circular arrangement of the protonated amino groups in 2 may be advantageous for electrostatic interactions with the bivalent anion.