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IJPAP Vol.43(07) [July 2005] >

Title: Dielectric relaxation studies of ternary liquid mixtures of aniline and substituted anilines with acetonitrile in the microwave region
Authors: Kalaivani, T
Kumar, S
Krishnan, S
Keywords: H-bonding
Proton donor
Proton acceptor
Dielectric relaxation
X-band microwave Aniline
Issue Date: Jul-2005
Publisher: CSIR
IPC CodeG01R27/26
Abstract: The molecular structure and molecular forces in liquids and solution in particular have been investigated by dielectric relaxation studies. The nature and strength of molecular interactions have been established as the main cause for the chemical behaviour of compounds. The dielectric behaviour of three amines and their mixtures (i) N-methyl aniline + acetonitrile (ii) aniline + acetonitrile (iii) N,N-dimethyl aniline + acetonitrile has been studied at microwave frequency 9.36 GHz at 303 K. Different dielectric quantities like dielectric constant ('), dielectric loss (''), static dielectric constant (o) and dielectric constant at optical frequency () have been determined. The relaxation time ( ) has been calculated by both Higasi’s method and Cole-Cole method. The molar free energy of activation (Fτ) and (F) has also been reported. The complex systems investigated show the maximum relaxation time values at 1:1 complex ratio by both Higasi’s method and Cole-Cole plot method.
Page(s): 542-544
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.43(07) [July 2005]

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