Title :
Dielectric properties of organic liquids and liquid crystals in solutions in nonpolar solvents
Author :
Johri, M. ; Johri, S. ; Dwivedi, D.C. ; Johri, G.K.
Author_Institution :
Dept. of Phys., D.B.S. Coll., Kanpur, India
Abstract :
A novel method of dipole-moment determination using the dielectric properties of organic liquids at microwave frequencies is proposed. Dipole moments of chloral, ethyl trichloro acetate, and 1,1,1-trichloro tert butyl alcohol are calculated using this method, and their dielectric properties in solution in nonpolar solvents are determined. The solute-solvent interaction parameter and the contribution of intermolecular forces are computed using significant liquid structure theory for solutions of p-azoxyanisole and 1,1´-diacetyle ferrocene liquid crystalline substance in nonpolar solvent. It is found that the method proposed to calculate the dipole moment is valid for the non-Debye relaxation mechanism, and the significant liquid structure theory provides useful information about the solute-solvent interaction and the contribution of various intermolecular forces
Keywords :
dielectric properties of liquids and solutions; dielectric relaxation; electric moments; intermolecular forces; liquid crystals; microwave spectra of organic molecules and substances; molecular moments; organic compounds; 1,1´-diacetyle ferrocene; 1,1,1-trichloro tert butyl alcohol; chloral; dielectric properties; dipole-moment determination; ethyl trichloro acetate; intermolecular forces; liquid crystals; liquid structure theory; microwave frequencies; nonDebye relaxation mechanism; nonpolar solvents; organic liquids; p-azoxyanisole; solute-solvent interaction parameter; solutions; Crystallization; Dielectric liquids; Dielectric losses; Educational institutions; Frequency; Liquid crystals; Permittivity; Physics; Solvents; Temperature;
Conference_Titel :
Conduction and Breakdown in Dielectric Liquids, 1990. ICDL 1990. Conference Record., 10th International Conference on
Conference_Location :
Grenoble
DOI :
10.1109/ICDL.1990.202901
