Spectral investigation and structural characterization of Dibenzalacetone: β-Cyclodextrin inclusion complex

• Benesi–Hildeband and Job’s plots show the stoichiometry of DBA:β-CDx complex 1:1.
• FT-IR and XRD study confirm the formation of DBA:β-CDx inclusion complex.
• Surface differences in AFM images also provide additional support of complex formation.

The interaction of Dibenzalacetone (DBA) with β-Cyclodextrin (β-CD) producing an inclusion complex was carried out by co-precipitation method. The binding constant was determined using steady state and time-resolved fluorescence spectroscopy and the results suggested that the inclusion complex preferred 1:1 stoichiometry. The complex was characterized by UV–Visible, infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC) and X-ray diffractometry (XRD). The morphological characteristics of the solid complex were analyzed by Scanning electron microscope (SEM) and Atomic force microscope (AFM). The structure of 1:1 inclusion complex of DBA with β-CD is proposed. The Docking study reveals that this structure was found to be highly probable and energitically favorable model.

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