Authors : S. D. Bajaj*, O. A. Mahodaya, P. V. Tekade
Page Nos : 24-36
Description :
In the present investigation we have synthesized some substituted chalcones by
environmental benign way using LiOH.H2O as a green catalyst.The ultrasonic velocity
(v), density (ρ) and viscosity (η) have been measured for the solutions of synthesized
dibenzalacetone in ethanol as a solvent in different concentrations
(0.1%,0.05%,0.025%,0.0125%). Ultrasonic parameters provide valuable information
about various inter and intra molecular interactions in solution. Ultrasonic parameters
such as adiabatic compressibility(βad),intermolecular free length(Lf) , relaxation time
(Ʈ )),free volume (Vf),internal pressure (Πi),acoustic impedence(Z), surface tension(S),
attenuation(a/f2),Rao’s constant(R),molar volume(Vm),cohesive energy(CE) of these
solutions are computed on the basis of velocity, viscosity and density measurements.
Various molecular interactions in these solutions have been analyzed on the basis of
the variation of these parameters with concentration.
