Spectroscopic study of Tb3+(beta-diketonate)3: alpha-cyclodextrin inclusion compounds in aqueous solution

NoteKinetic and Thermodynamic Analyses of the Cyclodextrin - AIIyl Inclusion Complex in an Aqueous Solution JStsA sothiocyanate

The decomposition of allyl isothiocyanate (AITC) in an aqueous solution was depressed in the presence of cyclodextrin (CD), it's uppression effect increasing in the order of none <fi-CD < cM-CD. The results of kinetic and tkermodynamic analyses of the CD-AITC inclusion complexes showed that the inclusion process was mostly governed by an enthalpy change (AHO) rather than by an entropy change (z...

Topochemical control of the photodimerization of aromatic compounds by γ-cyclodextrin thioethers in aqueous solution

The formation of soluble 1:2 complexes within hydrophilic γ-cyclodextrin (γ-CD) thioethers allows to perform photodimerizations of aromatic guests under controlled, homogenous reaction conditions. The quantum yields for unsubstituted anthracene, acenaphthylene, and coumarin complexed in these γ-CD thioethers were found to be up to 10 times higher than in the non-complexed state. The configurati...

Spectroscopic studies of solutes in aqueous solution.

Absorption and fluorescence characteristics of aqueous solutions of salts, sugars, and amino acids were studied using UV-vis spectroscopy and spectrofluorometry. Motivation stemmed from unanticipated absorption spectral and fluorescence features of the "exclusion zone" seen adjacent to various hydrophilic surfaces. Those features implied a structure distinct from that of bulk water (Adv. Colloi...

NMR spectroscopic characterization of β- cyclodextrin inclusion complex with vanillin

Electrochemistry of Cyclodextrin Inclusion Complexes of Pharmaceutical Compounds

Electrochemistry of cyclodextrins (CDs) and cyclodextrin inclusion complexes with different pharmaceutical compounds is reviewed. The article highlights some electrochemical investigations of the CD-drugs interactions in solution. Cyclodextrin modified electrodes and their applications as electrochemical sensors in pharmaceutical analysis based on the self-assembly of CD derivatives on metal el...