Photo Physical and Computational Studies on the Complexation of Acetanilide with Β-Cyclodextrin

K Sivakumar, M Parameswari
Inclusion complex of acetanilide (AA) with β-cyclodextrin (β-CD) has been investigated by UV and Fluorescence techniques. The red shift in λmax and enhanced absorption in β-CD medium confirms the-NH-CO-CH 3 aromatic side chain and part of benzene ring of AA is inserted in the β-CD cavity. The formation of complex has been confirmed by Benesi-Hildebrand plot obtained from the results of UV and fluorescence studies. The pKa values of prototropic species, stability constant K1:1 and the
more » ... ic parameters (ΔG, ΔH and ΔS) of inclusion process were determined. The results indicated that the inclusion process was an exergonic and spontaneous process. The solid AA:β-CD complex was investigated by FTIR and XRD methods. The AA:β-CD inclusion complex obtained by molecular docking studies was in good correlation with the results obtained through experimental methods.