Dielectric studies of hydrogen bonded ternary systems: Acetonitrile+alcohols+benzene

Sarojini, K.; Thenappan, T.

doi:10.1016/j.molliq.2009.10.016

Cited by 21 publications

(12 citation statements)

References 11 publications

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“…The characteristics impedance of a coaxial line is given by (1) This impedance for our transmission line is frequently 50 Ω. Here 'a' is the diameter of inner conductor and 'b' is the inner diameter of outer conductor.…”

Section: Tdr Setup and Data Acquisitionmentioning

confidence: 99%

“…An extensive study of dielectric behaviour of polar solutes at low concentration (to minimize solute-solute interactions) in polar solvents has led to valuable information regarding hydrogen bonding and solute-solvent interaction. [1][2][3][4][5][6][7][8][9] To gain some insight into the nature of molecular interactions between the associating molecules, a dielectric study of ethylene glycol (EG) -dimethyl sulphoxide (DMSO) system would be helpful. No attempt, so far, seems to have been made to study the dielectric behaviour in the microwave region.…”

Section: Introductionmentioning

confidence: 99%

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Dielectric Relaxation in Ethylene Glycol - Dimethyl Sulfoxide Mixtures as a Function of Composition and Temperature

Undre¹,

Khirade²,

Rajenimbalkar³

et al. 2012

Journal of the Korean Chemical Society

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ABSTRACT. Using time domain reflectometry, the complex dielectric spectra between 10 MHz to 20 GHz has been measured in the whole composition range at 10, 20, 30 and 40 o C for the binary mixtures of ethylene glycol and dimethyl sulfoxide. For all the mixtures, only one dielectric loss peak was observed in this frequency range. The relaxation in these mixtures can be described by a single relaxation time using the Debye model. A systematic variation is observed in dielectric constant (ε0) and relaxation time (τ). The excess permittivity (ε E ), excess inverse relaxation time (1/τ) E , Kirkwood correlation factor (g) and thermodynamic parameters viz. enthalpy of activation (∆H) and Gibbs free energy of activation (∆G) have been determined, to confirm the formation of hydrogen bonded homogeneous and heterogeneous cooperative domains, the dynamics of solute -solute interaction and the hindrance to molecular rotation in the hydrogen bonded glass forming ethylene glycol -dimethyl sulphoxide system.

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Section: Tdr Setup and Data Acquisitionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dielectric Relaxation in Ethylene Glycol - Dimethyl Sulfoxide Mixtures as a Function of Composition and Temperature

Undre¹,

Khirade²,

Rajenimbalkar³

et al. 2012

Journal of the Korean Chemical Society

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“…Accurate interpretations of dielectric behavior of various binary and ternary mixtures are important key to establish a relationship between bulk properties and molecular parameters. [16][17][18][19][20][21] Dielectric spectroscopy offers valuable insights into the microdynamics of fluctuating hydrogen bonds in liquids. 22,23 This work is an attempt on the influence of co-solvent on stearic acid mixture with nonpolar solvent over the concentration range by varying temperature from 303 K to 288 K. The changes in dielectric and relaxation parameters are associated with frequency, temperature and concentration.…”

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 dielectric investigations of binary polar liquid mixtures provide valuable information regarding intermolecular interactions and the consequent structural rearrangement of molecules in solution [4][5][6][7][8][9]. The heterogeneous and homogeneous interactions in binary mixtures using dielectric measurements have been studied and reported by several investigators [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Relative permittivity data of binary mixtures containing 2-butanol, 2-butanone, and cyclohexane

Gilani

Paktinat

Moghadam

2011

The Journal of Chemical Thermodynamics

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Dielectric studies of hydrogen bonded ternary systems: Acetonitrile+alcohols+benzene

Cited by 21 publications

References 11 publications

Dielectric Relaxation in Ethylene Glycol - Dimethyl Sulfoxide Mixtures as a Function of Composition and Temperature

Dielectric Relaxation in Ethylene Glycol - Dimethyl Sulfoxide Mixtures as a Function of Composition and Temperature

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

Relative permittivity data of binary mixtures containing 2-butanol, 2-butanone, and cyclohexane

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