Ultrasonic investigation of molecular association in ternary mixtures

Ultrasonic and IR study of molecular association process through hydrogen bonding in ternary liquid mixtures

“…Therefore, it is important to examine specific acoustic impedance in relation to concentration and temperature. The non-linear behavior of R, B and Z further supports the possibility of molecular interactions due to the H-bonding as well as due to the formation of charge-transfer complex between solute molecules [13,16,19,22,25].…”

“…The interdependence of L f and U has been evolved from a model for sound propagation proposed by Eyring and Kincaid [31]. Occurrence of U maxima, and β and L f minima at the same concentrations further strengthens the process of complex formation through H-bonding between the two solute molecules [15,19]. It is seen from Tables 1 and 2 that the variation in molar sound velocity (R), molar compressibility (B) and specific acoustic impedance (Z) is non-monotonous with concentration at various temperatures for both systems.…”

“…Dielectric relaxation studies have been widely used in order to investigate molecular structures in dilute solutions [1,2]. The N · · · HO bond complexes have been conventionally studied by infrared and ultraviolet techniques [3,4].…”

“…Ultrasonic waves with low amplitude have been used by many scientists to investigate the nature of molecular interactions and physico-chemical behavior of pure, binary, ternary and quaternary liquid mixtures [11][12][13][14][15][16][17][18][19]. A survey of literature [20][21][22][23][24][25][26] indicates that excess values of acoustical parameters are useful in understanding the nature and strength of the molecular interaction in the mixtures.…”

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

“…A minimum in compressibility is observed at 0.06 M for the CHL-ACP system (figure 4(a)) at 303 K but at 308 K and 313 K, the minimum value in the curve is shifted towards lower concentration (0.05 M and 0.04 M respectively). From figure 4, U maxima and κ minima occur at the same concentrations, which specify that there exists a significant interaction between the two solute molecules [22].…”