Thermodynamic and Acoustical study of 1-(4-Fluorophenyl)-3-(napthalen-1-yl)-2-propen-1-one-Reference-Cited by-同舟云学术

Thermodynamic and Acoustical study of 1-(4-Fluorophenyl)-3-(napthalen-1-yl)-2-propen-1-one

Published:2022-02-28 Issue:1 Volume:38 Page:186-192
ISSN:2231-5039
Container-title:Oriental Journal Of Chemistry
language:en
Short-container-title:Orient. J. Chem

Author:

Sowmya Balthikumeru Padmayya¹^ORCID

Affiliation:

1. Department of Chemistry, Sri Dharmasthala Manjunatheshwara College (Autonomous), Ujire- 574240, India.

Abstract

The various concentrations (ranging from 0.01M to 0.1 M) of synthesized 1-(4-fluorophenyl)-3-(napthalen-1-yl)-2-propen-1-one1 (4FNP) solutions in DMF were prepared. Density (ρ), viscosity (η) and ultrasonic velocity (U) measurements of pure solvent and solutions were carried out at 288.15 K, 293.15 K, 298.15 K and 303.15 K. The observed values of ρ, η and U were found at 298.15K in the range of 944.50-954.25 kg.m-3, 0.8440 x10-3-1.4195 x10-3 Nm-2s and 1454-1513 ms-1 respectively. The values of η and U decreased with increase of temperature, reveals the weakening of intermolecular forces between the molecules at higher temparature. Calculated thermodynamic parameters such as free volume, Gibbs free energy and internal pressures were interpreted in terms solute-solvent interaction. Increase of Gibbs free energy with increase of concentration clearly indicates the strong interaction between solvent and solute molecules. Decrease of free volume with increase in mole fraction gives evidence of strong intermolecular interaction in solution. Positive excess values of internal pressure represent the presence of dispersive forces between molecules.

Publisher

Oriental Scientific Publishing Company

Subject

Drug Discovery,Environmental Chemistry,Biochemistry,General Chemistry

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