title: Spectrophotometric study on the thermodynamics of binding of alpha- and beta-cyclodextrin towards some p-nitrobenzene derivatives.
abstract: Binding properties of native alpha- and beta-cyclodextrin towards some nitrobenzene derivatives have been studied by means of UV-vis spectrophotometry. The former host is able to form complexes having 1:1 and 1:2 stoichiometric ratios with these guests, while only 1:1 complexes are detected with the latter host. A careful analysis of the thermodynamic parameters for complexation equilibria, under the perspective of the enthalpy-entropy compensation effect, reveals that binding abilities of the two different hosts are subject to different features.
authors.affiliation: Università degli Studi di Palermo, Dipartimento di Chimica Organica E. Paternò, Viale delle Scienze-Parco d'Orleans II (pad. 17), 90128 Palermo, Italy.
authors.forename: Paolo
authors.initials: P
authors.lastname: Lo Meo
authors.forename: Francesca
authors.initials: F
authors.lastname: D'Anna
authors.forename: Serena
authors.initials: S
authors.lastname: Riela
authors.forename: Michelangelo
authors.initials: M
authors.lastname: Gruttadauria
authors.forename: Renato
authors.initials: R
authors.lastname: Noto
mesh_terms: D003505:Cyclodextrins / Q000737:chemistry* / Q000378:metabolism; D007700:Kinetics; D009578:Nitrobenzenes / Q000737:chemistry* / Q000378:metabolism; D013056:Spectrophotometry, Ultraviolet; D013816:Thermodynamics; D047391:alpha-Cyclodextrins; D047392:beta-Cyclodextrins
chemical_list: D003505:Cyclodextrins; D009578:Nitrobenzenes; D047391:alpha-Cyclodextrins; D047392:beta-Cyclodextrins; C031215:betadex; C032613:alpha-cyclodextrin