Volumetric and ultrasonic behaviour of binary mixtures of 1-nonanol with o-cresol, m-cresol, p-cresol and anisole at T=(293.15 and 313.15)K

Excess parameters of binary mixtures of anisaldehyde with o-cresol, m-cresol and p-cresol at T=(303.15, 308.15, 313.15, and 318.15)K

“…It is also observed that the magnitude of V E decreases with increase in temperature. The expansion in molar volume is due to the presence of weak intermolecular forces of attraction [13]. With increase in temperature, interactions between the unlike molecules become stronger and the V E values become less positive for all the systems studied.…”

Determination of thermodynamic properties for protonation equilibrium between isomeric cresols and N,N-dimethylaniline in n-hexane medium

“…The determination of equilibrium constant of weak interacting systems and the influence of temperature on such systems was attempted through ultrasonic method by several investigators [7][8][9][10]. Further, acoustical study on hydrogen bonded systems [11,12] evinced interest since they play a vital role in chemical, physical and biological processes. There are reports that the binary systems of isomeric cresols form hydrogen bonded complexes with 1-alkanols, dimethylsulfoxide, N,N-dimethylformamide and cyclohexanone [12][13][14][15].…”

“…Further, acoustical study on hydrogen bonded systems [11,12] evinced interest since they play a vital role in chemical, physical and biological processes. There are reports that the binary systems of isomeric cresols form hydrogen bonded complexes with 1-alkanols, dimethylsulfoxide, N,N-dimethylformamide and cyclohexanone [12][13][14][15]. Variable-temperature UV-vis, 13 C NMR and IR studies have been carried out in different solvents at a low temperature and the color change in ternary mixtures of phenols and amines in non-polar solvents was attributed to the proton transfer followed by the formation of hydrogen bonded complex [16].…”

Excess Thermodynamic and Acoustic Properties for Equimolar Mixture of Methyl Benzoate and Alkanols With Benzene at 303.15 K

“…So, it can be said that the molecular interactions are weak in these liquid mixtures and that the medium is loosely packed. The nature of the intermolecular interactions in liquid mixtures can be explained by the variation of excess molar volume (V E ), with respect to mole fraction, x1, as shown in Figure 2 at T=303.15 K. The expansion in molar volume can be attributed to the presence of weak forces of attraction 18 between the molecules. Similar results were reported by Garcia et al 19 .…”