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Titolo:
STUDIES OF NAPHTHYL-SUBSTITUTED BETA-CYCLODEXTRINS - SELF-AGGREGATIONAND INCLUSION OF EXTERNAL GUESTS
Autore:
MCALPINE SR; GARCIAGARIBAY MA;
Indirizzi:
UNIV CALIF LOS ANGELES,DEPT CHEM & BIOCHEM LOS ANGELES CA 90095 UNIV CALIF LOS ANGELES,DEPT CHEM & BIOCHEM LOS ANGELES CA 90095
Titolo Testata:
Journal of the American Chemical Society
fascicolo: 18, volume: 120, anno: 1998,
pagine: 4269 - 4275
SICI:
0002-7863(1998)120:18<4269:SONB-S>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
DETECTING ORGANIC-COMPOUNDS; GAMMA-CYCLODEXTRIN; CIRCULAR-DICHROISM; MOLECULAR RECOGNITION; EXCIMER FLUORESCENCE; NAPHTHALENE DERIVATIVES; ALPHA-CYCLODEXTRIN; ELECTRONIC SPECTRA; BINDING ABILITY; PYRENE EXCIMER;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
50
Recensione:
Indirizzi per estratti:
Citazione:
S.R. Mcalpine e M.A. Garciagaribay, "STUDIES OF NAPHTHYL-SUBSTITUTED BETA-CYCLODEXTRINS - SELF-AGGREGATIONAND INCLUSION OF EXTERNAL GUESTS", Journal of the American Chemical Society, 120(18), 1998, pp. 4269-4275

Abstract

Studies of 3-O-(2-methylnaphthyl)-beta-cyclodextrin (1) with various spectroscopic methods including H-1 NMR, fluorescence, UV-vis, and circular dichroism yield information on the character of this compound. NOESY data indicate the naphthyl moiety binds inside the cyclodextrin cavity. H-1 NMR concentration-dependent studies reveal that 1 is a dimer at concentrations of > 10(-4) M. The circular dichroism spectrum of dilute samples is consistent with a monomer. Analysis of 1 complexing with 2-(p-toluidino)-6-naphthalene-sulfonate (TNS) with both fluorescence and H-1 NMR demonstrates that a hydrophobic interaction occurs between 1 and TNS. The concentration dependence of this interaction is strongly affected by the dimerization equilibrium of 1.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/11/20 alle ore 14:30:11