Dielectric relaxation study of mixtures of 1-propanol with aniline, 2-chloroaniline and 3-chloroaniline at different temperatures using time domain reflectometry

Rana, V. A.; Vyas, Anil; Mehrotra, S. C.

doi:10.1016/s0167-7322(02)00162-9

Cited by 57 publications

(24 citation statements)

References 10 publications

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“…Excess inverse relaxation time of 1 À Á E was calculated using the relation, 24 1 25,26 The Bruggeman factor f B is related to the volume fraction of one of the components as:…”

Section: Discussionmentioning

confidence: 99%

“…Time Domain Reflectometry (TDR) has widely been used by many researchers to measure the complex permittivity of polar liquids and their binary mixtures. [1][2][3][4][5][6] Recently we reported results of our study of dielectric relaxation in the binary mixtures of -picoline and Methanol (MeOH) at different temperatures using Time Domain Reflectometry (TDR) technique. 7 In continuation of this work, study of dielectric relaxation behavior of binary mixtures of -picoline and methanol (MeOH) at different temperatures using TDR technique was undertaken and the results are reported in this paper.…”

Section: Introductionmentioning

confidence: 99%

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Dielectric relaxation studies of binary mixture of β-picoline and methanol using time domain reflectometry at different temperatures

Trivedi

Rana

Hudge³

et al. 2016

J. Adv. Dielect.

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Complex permittivity spectra of binary mixtures of varying concentrations of -picoline and Methanol (MeOH) have been obtained using time domain reflectometry (TDR) technique over frequency range 10 MHz to 25 GHz at 283.15, 288.15, 293.15 and 298.15 K temperatures. The dielectric relaxation parameters namely static permittivity (" 0 ), high frequency limit permittivity (" 11 ) and the relaxation time () were determined by fitting complex permittivity data to the single Debye/Cole-Davidson model. Complex nonlinear least square (CNLS) fitting procedure was carried out using LEVMW software. The excess permittivity (" E 0 ) and the excess inverse relaxation time (1/Þ E which contain information regarding molecular structure and interaction between polar-polar liquids were also determined. From the experimental data, parameters such as effective Kirkwood correlation factor (g eff ), Bruggeman factor (f B ) and some thermo dynamical parameters have been calculated. Excess parameters were fitted to the Redlich-Kister polynomial equation. The values of static permittivity and relaxation time increase nonlinearly with increase in the mol-fraction of MeOH at all temperatures. The values of excess static permittivity (" 0 E ) and the excess inverse relaxation time (1/Þ E are negative for the studied -picoline -MeOH system at all temperatures.

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“…Excess inverse relaxation time of 1 À Á E was calculated using the relation, 24 1 25,26 The Bruggeman factor f B is related to the volume fraction of one of the components as:…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dielectric relaxation studies of binary mixture of β-picoline and methanol using time domain reflectometry at different temperatures

Trivedi

Rana

Hudge³

et al. 2016

J. Adv. Dielect.

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“…[9][10][11][12] The formations are significant changes to the extent of intermolecular or intramolecular interactions in solution. [13][14][15] The precise permittivity data of binary and ternary mixtures are necessary for understanding the nature of intermolecular interactions and structural rearrangement.…”

Section: Introductionmentioning

confidence: 99%

Dielectric dispersion and thermodynamic behavior of stearic acid binary mixtures with alcohol as co-solvent using time domain reflectometry

Sylvester

Ganesh²,

Karunakaran

et al. 2017

J. Adv. Dielect.

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Dielectric permittivity and relaxation dynamics of binary and ternary mixture of stearic acid on various concentration and their thermodynamic effects are studied. The static dielectric constant (" 0 ), dielectric permittivity (" 0 ) and dielectric loss (" 00 ) are found by bilinear calibration. The relaxation time (), dielectric strength (Á") and the excess permittivity (" E ) are found. The thermodynamic parameters such as enthalpy (ÁH), entropy (ÁS) and Gibb's free energy (ÁG) are evolved. The significant changes in dielectric parameters are due to the intramolecular and intermolecular interactions in response to the applied frequency. The permittivity spectra of stearic acid-alcohol in the frequency range of 10 MHz to 30 GHz have been measured using picoseconds Time Domain Reflectometry (TDR). The dielectric parameters (" 0 , " 0 , " 00 ) are found by bilinear calibration method. Influence of temperature in intermolecular interaction and the relaxation process are also studied. The FT-IR spectral analysis reveals that the conformation of functional groups and formation for hydrogen bonding are present in both binary and ternary mixtures of stearic acid.

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“…The dipole moment value of 2-BE is 2.08 Debye and is having high pKa for OH group. Rana et al [4] carried out the dielectric relaxation study of 1-propanol with 2-chloroaniline and 3-chloroanilines over the entire range of concentration at frequency ranging from 10 MHz to 10 GHz using time domain reflectometry (TDR) technique at four different temperatures. They found strong intermolecular association between the anilines in 1-propanol.…”

Section: Introductionmentioning

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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Dielectric relaxation study of mixtures of 1-propanol with aniline, 2-chloroaniline and 3-chloroaniline at different temperatures using time domain reflectometry

Cited by 57 publications

References 10 publications

Dielectric relaxation studies of binary mixture of β-picoline and methanol using time domain reflectometry at different temperatures

Dielectric relaxation studies of binary mixture of β-picoline and methanol using time domain reflectometry at different temperatures

Dielectric dispersion and thermodynamic behavior of stearic acid binary mixtures with alcohol as co-solvent using time domain reflectometry

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

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