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

摘要

This work deals with the ultrasonic studies of the Mannich bases(morpholin-4-yl)(pyridin-3-yl)methyl]hydrazine carboxamide(MPH)and(morphohno)(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(Lr),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/f~2).These results are inferred that the strong interaction exists between the solvent(DMSO)and solute(MPH and MTN).