MOLECULAR RECOGNITION STUDY ON SUPRAMOLECULAR SYSTEM (XVII) - INCLUSION COMPLEXATION OF SOME BETA-CYCLODEXTRIN DERIVATIVES CONTAINING ORGANO-SELENIUM WITH ALIPHATIC-ALCOHOLS

Authors
Citation
Y. Liu et al., MOLECULAR RECOGNITION STUDY ON SUPRAMOLECULAR SYSTEM (XVII) - INCLUSION COMPLEXATION OF SOME BETA-CYCLODEXTRIN DERIVATIVES CONTAINING ORGANO-SELENIUM WITH ALIPHATIC-ALCOHOLS, Gaodeng xuexiao huaxue xuebao, 19(9), 1998, pp. 1440-1442
Citations number
9
Language
CHINESE
art.tipo
Article
Categorie Soggetti
Chemistry
ISSN journal
0251-0790
Volume
19
Issue
9
Year of publication
1998
Pages
1440 - 1442
Database
ISI
SICI code
0251-0790(1998)19:9<1440:MRSOSS>2.0.ZU;2-N
Abstract
The spectrophotometric titrations have been performed at 298, 15 K in buffered aqueous solution (pH = 7. 20) to give the stability constants (lgK(5)) for the supramolecular system formed by mono-[ 6-phenylseleno )-6-deoxy ]-beta-cyclodextrin (1) nono-[ 6-( p-chlorophenylseleno) -6- deoxy ]-beta-cyclodextrin(2), mono-[6-( naphthylseleno)-6-deoxy]-beta- cyclodextrin(3), and no-[6-(benzylseleno)-6-deoxy]-beta-cyclodextrin(4 ) with a series of aliphatic alcohols, The molecular binding-ability a nd selectivity for aliphatic alcohols of modified beta-cyclodextrins(1 -4) are discussed from the size-fit, geometrical complement, van der W aals force, hydrogen bonding, and hydrophobic interactions relationshi ps between the host cavity and the guest molecule, The results investi gated indicate that the benzylseleno moiety of beta-cyclodextrin deriv ative(4) as a probe for spectrometry can enhance not only the molecula r binding-ability but also the molecular recognizing-ability.