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 (ziSe), and that Van der Waals forces played a primary role in the inclusion. Steric factors were important for the reaction activity of AITC inclusio" into the CD cavity, especial}y significant being the stereospecificity between the size of the CD cayity and the AITC molecule which is the mftin