Cation complexation properties of hexakis(2-O-methyl-3,6-anhydro) alpha-cyclodextrin: A H-1 NMR study

Authors
Fauvelle, F Gadelle, A Debouzy, JC Baudin, C Perly, B
Citation
F. Fauvelle et al., Cation complexation properties of hexakis(2-O-methyl-3,6-anhydro) alpha-cyclodextrin: A H-1 NMR study, SUPRAMOL CH, 11(3), 2000, pp. 233-237
Citations number
13
Categorie Soggetti
Chemistry
Journal title
SUPRAMOLECULAR CHEMISTRY
ISSN journal
10610278 → ACNP
Volume
11
Issue
3
Year of publication
2000
Pages
233 - 237
Database
ISI
SICI code
1061-0278(2000)11:3<233:CCPOHA>2.0.ZU;2-V
Abstract
The affinity of hexakis(2-O-methyl-3,6-anhydro)-alpha-cyclodextrin (3,6-alp ha-CDM) for Ba2+, Pb2+, Ca2+ and Sr2+ has been tested by H-1 NMR. It was sh own that 3,6-alpha-CDM forms strong complexes in water with Pb2+ and Ba2+. The comparison with the parent hexakis (3, 6-anhydro)-alpha-cyclodextrin be aring hydroxyl groups instead of methoxy groups reveals that the O-CH3 subs titution significantly improves the anhydro-cyclodextrin selectivity.