Ultrasonic Studies on the Nature of Molecular Interaction of Synthesized Mannich Bases in DMSO at Different Temperatures

Abstract

This work deals with the ultrasonic studies of the Mannich bases (morpholin-4-yl)(pyridin-3- yl)methyl]hydrazine carboxamide (MPH) and (morpholino)(thiophen-2-yl)methyl)nicotine hydrazide (MTN) by the measurements of parameters such as ultrasonic velocity (U), density (ρ), viscosity (η), adiabatic compressibility (κ), intermolecular free length (Lf), molar volume (Vm), relaxation time (τ), specific acoustic impedance (Z), lenard jones potential (LJP), internal pressure (πi), free volume (Vf) and molecular cohesive energy (MCE), available volume (Va), Gibbs free energy (ΔG) and absorption coefficient (α/f2). These results are inferred that the strong interaction exists between the solvent (DMSO) and solute (MPH and MTN).