Study on molecular interactions of binary mixtures of 2,6 dimethyl cyclohexanone with substituted anilines at T = (303.15-313.15)K through thermodynamic properties and FT-IR spectra and correlation with the Jouyban-Acree model

The densities (rho), speeds of sound (u) and viscosities (eta) of binary mixtures of 2,6- dimethylcyclohexanone (2,6-DMCY) with substituted anilines (N,N-dimethylaniline (N,N-DMA), Nmethylaniline (N-MA)) and aniline (A) measured over the entire composition range at temperatures (303.15, 308.15 and 313.15) K and 0.1 MPa. Using the experimental data, the excess volume, excess isentropic compressibility, and deviation in viscosity, excess partial properties of the components at infinite dilution were calculated. Prigogine-Flory-Patterson (PFP) theory is applied to identify the predominant molecular interaction. Jouyban-Acree model, results are discussed in terms of mean relative deviation (MRDs) and individual relative deviation (IRD) between calculated and experimental densities, speeds of sound and viscosities as an accuracy criterion. A good agreement is observed among the excess parameters and FT-IR spectroscopic properties. (C) 2021 Elsevier B.V. All rights reserved.

Automated summary

The study measured the physical properties of binary mixtures of 2,6-dimethylcyclohexanone with substituted anilines and aniline, and calculated various property deviations using experimental data, applying different theoretical models for analysis. The results showed good agreement among the excess parameters and FT-IR spectroscopic properties.