Dielectric and thermodynamic behavior of binary mixture of anisole with morpholine and aniline at different temperatures

Parthipan, G.; Thenappan, T.

doi:10.1016/j.molliq.2007.06.010

Cited by 40 publications

(11 citation statements)

References 9 publications

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“…Krishna and MadhuMohan [31] have reported the negative and positive values (1/ ) in N-methylaniline with alcohols. The excess Helmholtz free energy (Δ ) is a parameter to evaluate the interaction between the components in the mixture through breaking mechanism of hydrogen bond and is expressed [32][33][34][35] as…”

Section: Resultsmentioning

confidence: 99%

Dielectric Relaxation Studies of 2-Butoxyethanol with Aniline and Substituted Anilines Using Time Domain Reflectometry

Jeevanandham¹,

Kumar

Periyasamy

et al. 2014

Advances in Physical Chemistry

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The complex dielectric spectra of 2-butoxyethanol with aniline and substituted anilines like aniline, o-chloroaniline, mchloroaniline, o-anisidine and m-anisidine binary mixtures in the composition of different volumes of percent (0%, 25%, 50%, 75%, and 100%) have been measured as a function of frequency between 10 MHz and 30 GHz at 298.15 K. The dielectric parameters like static dielectric constant ( 0 ) and relaxation time ( ) have been obtained by using least square fit method. By using these parameters ( 0 , ), effective Kirkwood correlation factor ( eff ), corrective Kirkwood correlation factor ( ), Bruggeman factor ( ), excess dielectric constant ( ), and excess inverse relaxation time (1/ ) values are calculated and discussed to yield information on the dipolar alignment and molecular rotation of the binary liquid mixtures. From all the derived dielectric parameters, molecular interactions are interpreted through hydrogen bonding.

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Section: Resultsmentioning

confidence: 99%

Dielectric Relaxation Studies of 2-Butoxyethanol with Aniline and Substituted Anilines Using Time Domain Reflectometry

Jeevanandham¹,

Kumar

Periyasamy

et al. 2014

Advances in Physical Chemistry

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“…The solutions were prepared at different mole fractions in steps of 10 % at room temperature. The dielectric constants were measured [15] at 1 KHz using VLCR-7 Digital meter supplied by Vasavi Electronics, Secunderabad. Using a water circulating thermostat, the temperature was maintained at constant temperature within the accuracy limit of ± 1°C.…”

Section: Methodsmentioning

confidence: 99%

Molecular interactions of triethylamine and 1-dodecanol binary liquid mixtures

Jeevaraj

Sankar²

2013

Main Group Chemistry

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Solute -Solvent interactions of Triethylamine (TEA) and 1-Dodecanol binary mixture have been carried out for 11 concentrations at different temperatures using LCR(Inductance (L), Capacitance (C) and Resistance (R)) meter at a frequency of 1 KHz. The Kirkwood correlation factors and excess dielectric properties were determined and discussed to give information about the molecular interactions of the systems. The static dielectric constants for the mixture have been fitted with the modified Bruggeman model. The excess permittivities are found to be positive for all concentrations and temperatures, which represent solute and solvent interact in such a way the effective dipole moment increases.

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“…The excess Helmholtz free energy ÁA E , which is almost equal to the Gibb's free energy ÁG for a condensed matter is given as [16,17] …”

Section: Excess Free Energymentioning

confidence: 99%

“…In system 2, at all three temperatures, values of ÁA E AB suggest the absence of or negligible hetero-interaction [28]. The total excess free energy ÁA E describes the formation of and clusters [16,17,29]. A negative value of ÁA E indicates the formation of -clusters with antiparallel alignment, while a positive value indicates the formation of -clusters with parallel alignment.…”

mentioning

confidence: 99%

Dielectric and thermodynamic behaviour of binary mixtures of anisole witho-chlorophenol and witho-cresol

Parthipan

Thenappan

2009

Philosophical Magazine Letters

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The molecular interactions in binary mixtures of anisole with ochlorophenol and o-cresol have been studied at three different temperatures using dielectric measurements. The static permittivity and the permittivity at optical frequency have also been determined and used to obtain the Kirkwood correlation factors, the Bruggeman parameter, the excess permittivity and the excess free energy for different concentrations of two binary mixtures, namely (1) anisole þ o-chlorophenol and (2) anisole þ ocresol. Using the effective Kirkwood correlation factor, parallel and antiparallel alignments among the dipoles are identified. The corrective Kirkwood correlation factor, the excess permittivity and the Bruggeman parameter are used to explain the interaction between unlike molecules. The temperature dependences of the above parameters are also reported. The investigation shows systematic changes in the dielectric behaviour with variations in concentration and temperature.

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Dielectric and thermodynamic behavior of binary mixture of anisole with morpholine and aniline at different temperatures

Cited by 40 publications

References 9 publications

Dielectric Relaxation Studies of 2-Butoxyethanol with Aniline and Substituted Anilines Using Time Domain Reflectometry

Dielectric Relaxation Studies of 2-Butoxyethanol with Aniline and Substituted Anilines Using Time Domain Reflectometry

Molecular interactions of triethylamine and 1-dodecanol binary liquid mixtures

Dielectric and thermodynamic behaviour of binary mixtures of anisole witho-chlorophenol and witho-cresol

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