Abstract
La velocidad ultrasónica, la densidad y la viscosidad de soluciones de algunas chalconas sintéticas se midieron en N, N-dimetilformamida y cloroformo a diferentes temperaturas (desde 298,15 hasta 318,15 K). A partir de estos datos experimentales, se calcularon diversos parámetros acústicos tales como la impedancia específica (Z), la compresibilidad adiabática (ks), la función de sonido molar de Rao (Rm), la longitud de trayecto libre intermolecular (Lf), el número de solvatación (Sn) y la presión interna (Π), para comprender las interacciones moleculares en las soluciones estudiadas. Los resultados se interpretan en términos de las posibles interacciones moleculares que ocurren en las soluciones.
Highlights
Ultrasonic, a versatile non-destructive technique is a subject of extensive research because of its applications in various fields such as biology, medicine, in chemical industries, consumer industries, medical field, physics, etc. [1,2,3,4,5,6,7,8,9]
The ultrasonic technique is highly sensitive to molecular interactions and it gives valuable information about nature and strength of molecular interactions in solutions
The density, ultrasonic velocity and viscosity of these synthesized compounds were measured in N,Ndimethyl formamide and chloroform over a wide range of concentration at different temperatures
Summary
Ultrasonic velocity, density and viscosity of some synthesized chalcones were measured in N,N-dimethyl formamide and chloroform at different temperatures (298.15 to 318.15 K). From these experimental data, various acoustical parameters such as specific impedance (Z), adiabatic compressibility ( s), Rao’s molar sound function (Rm), intermolecular free path length (Lf), solvation number (Sn), internal pressure (π) have been calculated in order to understand the molecular interactions in the studied solutions. La densidad y la viscosidad de soluciones de algunas chalconas sintéticas se midieron en N, N-dimetilformamida y cloroformo a diferentes temperaturas (desde 298,15 hasta 318,15 K). Palabras clave: Velocidad ultrasónica, chalconas, parámetros acústicos, DMF, cloroformo
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