Spectral and Ultrasonic Investigation of Hydrogen Bonded Complexes of Cyclohexanol and Aryl Ketones in DMSO Medium

Abstract

UV spectral studies and ultrasonic method are used to investigate the presence of associative interaction between cyclohexanol (CHL) and two aromatic ketones (acetophenone (ACP) and pnitroacetophenone (PNA)) in DMSO medium. The variation of acoustic parameters with concentration establishes the molecular association in this ternary liquid mixture. The effect of temperature on Hbonding is also studied using acoustic method by determining the acoustical properties at three different temperatures. UV-visible spectral studies are carried out at room temperature (303 K). Ultrasonic velocity plots show the concentrations at which the interaction is strong, and UV spectra are recorded at these specific concentrations. The appearance of new absorptions in UV-visible spectra in the two systems confirms the presence of intermolecular hydrogen bond between CHL and the two aryl ketones.