Thermophysical and spectroscopic properties of binary liquid systems

• Published in: Journal of thermal analysis and calorimetry Vol. 125; no. 2; pp. 935 - 947
• Main Authors: Rahul, D, Gowri Sankar, M, Chandra Sekhar, M, Ramachandran, D
• Format: Journal Article
• Language: English
• Published: Springer 01.08.2016
• Subjects: Analysis; Hydrogen; Hydrogen bonding; Ketones
• ISSN: 1388-6150; 1588-2926
• DOI: 10.1007/s10973-016-5409-7

The thermophysical properties, viz. excess molar volume (V.sup.E), viscosity (η), speed of sound (u) and spectroscopic parameter (FT-IR), have been measured for binary mixtures of 3-chloroaniline with acetophenone, cyclopentanone and cyclohexanone over the entire range of mole fraction at T = (303.15-318.15) K. Excess isentropic compressibility ( ), deviation in viscosity (Δη) and excess Gibbs energy of activation of viscous flow (G.sup.*E) have also been estimated and analyzed. The variation of these properties with composition of the mixtures suggests hydrogen bond, dipole-dipole interactions and charge transfer complex formation between 3-chloroaniline and ketones. The spectroscopic measurement confirms that the interaction between unlike molecules takes place through carbonyl groups of ketones. A good agreement is obtained between excess quantities and spectroscopic data.