Dielectric Parameters and Hydrogen Bond Interaction Study of Binary Alcohol Mixtures

Sengwa, R. J.; Sankhla, Sonu; Shinyashiki, Naoki

doi:10.1007/s10953-007-9230-6

Cited by 74 publications

(43 citation statements)

References 28 publications

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“…The structure and dynamics of the hydrogen bonded ethylene glycol (HOCH 2 CH 2 OH) molecules are 417 very interesting and have been studied by various workers using different measurement techniques. 21,22 The four sites available for H-bonding in EG molecules promote a set of transient crosslinks between neighboring molecules. In such a case, relevant transient structures such as branched associated species and/or chains are formed.…”

Section: 19mentioning

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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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: 19mentioning

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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“…As dipole moment of solvent (dioxane) is very small (μ = 0.97D), [17] the interaction between third pair can be neglected. Therefore, interaction between co-solvent-dioxane [18][19][20][21][22][23][24][25] can provide insight to understanding the exact nature of -OH group through molecular interaction in the liquid. S. Czerkas et al [24] have reported the variation of viscosity and activation energy against mole fraction of alcohol in dioxane.…”

Section: Introductionmentioning

confidence: 99%

Dielectric relaxation study of aniline,N-methylaniline andN,N-dimethylaniline and alcohol in 1, 4-dioxane using picosecond time-domain reflectometry

Watode

Hudge

Shinde

et al. 2014

Physics and Chemistry of Liquids

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A time-domain reflectometry technique has been used to measure complex dielectric permittivity ε*(ω) = εʹ(ω) − jε″(ω) of 1-propanol-dioxane, 2-propanol-dioxane, aniline-dioxane, N-methylaniline-dioxane and N,N-dimethylaniline-dioxane mixtures in the frequency range of 10 MHz to 30 GHz. The complex permittivity spectrum has been fitted with a single relaxation time with a small amount of Davidson-Cole behaviour. The least squares fit method has been used to obtain the static dielectric constant (ε 0 ), relaxation time (τ), Bruggeman factor and Kirkwood correlation factor. The Luzar theoretical model is used to compute the binding energies and average number of hydrogen bond between co-solvent-co-solvent and co-solvent-dioxane molecules.

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“…An extensive study of dielectric behaviour of polar solutes at low concentration (to minimise solute-solute interactions) in polar solvents has led to valuable information regarding hydrogen-bonding and solutesolvent interactions. The formation of intra-and intermolecular hydrogen bond has significant effects on the dielectric properties of polar liquids while their measurements provide the path to understand molecular structure and unlike molecule interactions in mixed solvents [1][2][3][4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…The structure and dynamics of the hydrogen-bonded EG (HOCH 2 CH 2 OH) molecules are very interesting and have been studied by various researchers using different measurement techniques [11][12][13]. The four sites available for H-bonding in EG molecules promote a set of transient crosslinks between neighbouring molecules.…”

Section: Introductionmentioning

confidence: 99%

Temperature-dependent dielectric characterisation and molecular interaction behaviour in binary mixtures of dimethylacetamide with ethylene glycol and dimethylsulphoxide

Undre¹,

Khirade²,

Rajenimbalkar³

et al. 2012

Physics and Chemistry of Liquids

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Dielectric relaxation measurements on binary mixtures of dimethylacetamide with ethylene glycol and dimethylsulphoxide have been carried out at 11 concentrations using time domain reflectometry technique at 10 C, 20 C, 30 C and 40 C over the frequency range from 10 MHz to 10 GHz. For all the mixtures, only one dielectric loss peak is 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 and relaxation time. Excess permittivity, excess inverse relaxation time, Kirkwood correlation factor and thermodynamic parameters such as enthalpy of activation and Gibbs free energy of activation have been determined, to confirm the formation of hydrogen-bonded homogeneous and heterogeneous cooperative domains, the dynamics of solute-solvent interaction and the hindrance to molecular rotation in the hydrogen-bonded glass forming ethylene glycoldimethylacetamide and dimethylsulphoxide-dimethylacetamide system.

show abstract

Dielectric Parameters and Hydrogen Bond Interaction Study of Binary Alcohol Mixtures

Cited by 74 publications

References 28 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 relaxation study of aniline,N-methylaniline andN,N-dimethylaniline and alcohol in 1, 4-dioxane using picosecond time-domain reflectometry

Temperature-dependent dielectric characterisation and molecular interaction behaviour in binary mixtures of dimethylacetamide with ethylene glycol and dimethylsulphoxide

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