title: Imazalil-cyclomaltoheptaose (beta-cyclodextrin) inclusion complex: preparation by supercritical carbon dioxide and 13C CPMAS and 1H NMR characterization.
abstract: An inclusion complex between imazalil (IMZ), a selected fungicide, and cyclomaltoheptaose (beta-cyclodextrin, betaCD) was obtained using supercritical fluid carbon dioxide. The best preparation conditions were determined, and the inclusion complex was investigated by means of 1H NMR spectroscopy in aqueous solution and 13C CPMAS NMR spectroscopy in the solid state. Information on the geometry of the betaCD/IMZ complex was obtained from ROESY spectroscopy, while the dynamics of the inclusion complex in the kilohertz range was obtained from the proton spin-lattice relaxation times in the rotating frame, T(1rho) (1H).
authors.affiliation: Dipartimento di Scienze Chimiche, Università di Cagliari, Cittadella Universitaria di Monserrato, Strada Statale 554 Bivio per Sestu, 09042 Monserrato (CA), Italy.
authors.forename: Simona
authors.initials: S
authors.lastname: Lai
authors.forename: Emanuela
authors.initials: E
authors.lastname: Locci
authors.forename: Alessandra
authors.initials: A
authors.lastname: Piras
authors.forename: Silvia
authors.initials: S
authors.lastname: Porcedda
authors.forename: Adolfo
authors.initials: A
authors.lastname: Lai
authors.forename: Bruno
authors.initials: B
authors.lastname: Marongiu
mesh_terms: D002245:Carbon Dioxide / Q000737:chemistry; D002247:Carbon Isotopes / Q000737:chemistry; D003505:Cyclodextrins / Q000737:chemistry*; D007093:Imidazoles / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D011522:Protons; D047392:beta-Cyclodextrins
chemical_list: D002247:Carbon Isotopes; D003505:Cyclodextrins; D007093:Imidazoles; D011522:Protons; D047392:beta-Cyclodextrins; D002245:Carbon Dioxide; C017435:enilconazole; C031215:betadex