Thermo physical, spectroscopic and computational investigation of binary liquid mixtures at various temperatures and correlation with the Jouyban–Acree model (allyl alcohol, ethanoic acid, propanoic acid, and butanoic acid)

The intermolecular interactions between allyl alcohol + short carboxylic acids (ethanoic acid, propanoic acid, and butanoic acid) binary liquid systems were studied both at the macro- and microscopic levels using a combined experimental and computational methodology. Thermo-physical properties of allyl alcohol and short carboxylic acids binary mixtures are studied at ambient atmospheric pressure over the entire composition range and at T= (303.15 K − 313.15 K). In the present study, the calculated excess/deviation properties are discussed in terms of molecular interactions of binary mixtures. The existence of the hydrogen bonding in the binary mixtures of allyl alcohol + short carboxylic acids were further confirmed by high level theoretical calculation, namely, the density functional theory (DFT-B3LYP) of 6–311++G (d,p) basis set was used to study the geometries, bond characteristics, interaction energies and of the hydrogen bonded complexes in gas phase were investigated via quantum chemical calculations