Ultrasonic study of molecular interactions in binary mixtures of aprotic and inert solvents

Raju, K. Thomas S.S.; Rajamannan, B.; Rakkappan, C.

doi:10.1016/s0167-7322(02)00020-x

Cited by 16 publications

(4 citation statements)

References 6 publications

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“…Freidman et al have also made theoretical developments using the Gurney cosphere effect to account for the osmotic and activity coefficient properties in detail. , In solution, the solvation and the interactions of the ions or ion pair with the solvent determine the unique properties of these systems . The volumetric and acoustic properties of electrolytic and nonelectrolytic solutions have proved particularly informative in elucidating the various solute−solvent interactions that exist in these solutions. − Acoustic, volumetric and osmotic data for IL-containing systems are of great relevance in assessing intermolecular interactions between the IL and solvent and also for the development of thermodynamic models specific to IL-containing systems.…”

Section: Introductionmentioning

confidence: 99%

“…22 The volumetric and acoustic properties of electrolytic and nonelectrolytic solutions have proved particularly informative in elucidating the various solute-solvent interactions that exist in these solutions. [23][24][25][26][27][28][29] Acoustic, volumetric and osmotic data for IL-containing systems are of great relevance in assessing intermolecular interactions between the IL and solvent and also for the development of thermodynamic models specific to IL-containing systems.…”

Section: Introductionmentioning

confidence: 99%

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Thermodynamic Studies of Ionic Interactions in Aqueous Solutions of Imidazolium-Based Ionic Liquids [Emim][Br] and [Bmim][Cl]

et al. 2008

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Experimental measurements of density at different temperatures ranging from 293.15 to 313.15 K, the speed of sound and osmotic coefficients at 298.15 K for aqueous solution of 1-ethyl-3-methylimidazolium bromide ([Emim][Br]), and osmotic coefficients at 298.15 K for aqueous solutions of 1-butyl-3-methylimidazolium chloride ([Bmim][Cl]) in the dilute concentration region are taken. The data are used to obtain compressibilities, expansivity, apparent and limiting molar properties, internal pressure, activity, and activity coefficients for [Emim][Br] in aqueous solutions. Experimental activity coefficient data are compared with that obtained from Debye-Hückel and Pitzer models. The activity data are further used to obtain the hydration number and the osmotic second virial coefficients of ionic liquids. Partial molar entropies of [Bmim][Cl] are also obtained using the free-energy and enthalpy data. The distance of the closest approach of ions is estimated using the activity data for ILs in aqueous solutions and is compared with that of X-ray data analysis in the solid phase. The measured data show that the concentration dependence for aqueous solutions of [Emim][Br] can be accounted for in terms of the hydrophobic hydration of ions and that this IL exhibits Coulombic interactions as well as hydrophobic hydration for both the cations and anions. The small hydration numbers for the studied ILs indicate that the low charge density of cations and their hydrophobic nature is responsible for the formation of the water-structure-enforced ion pairs.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermodynamic Studies of Ionic Interactions in Aqueous Solutions of Imidazolium-Based Ionic Liquids [Emim][Br] and [Bmim][Cl]

et al. 2008

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“…The volumetric and ultrasonic properties of electrolytic and non-electrolytic solutions have proved particularly informative in elucidating various solutesolvent interactions exist in these solutions [37][38][39][40][41][42][43]52]. With this consideration, the present communication deals with the density and sound velocity studies and allied parameters of 1-butyl-3-methyl-imidazolium bromide, BMIMBr, in water, methanol, and ethanol at T = (298.15 to 318.15) K and at atmospheric pressure.…”

Section: Introductionmentioning

confidence: 99%

Apparent molar volume and isentropic compressibility of ionic liquid 1-butyl-3-methylimidazolium bromide in water, methanol, and ethanol at T=(298.15 to 318.15)K

Zafarani-Moattar

Shekaari

2005

The Journal of Chemical Thermodynamics

217

103

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“…[33]. As noted previously in Section 1 of the paper, complex optical constants are starting point to calculate more important quantities, such as complex dielectric constants:…”

Section: Resultsmentioning

confidence: 99%

Infrared optical constants, molar absorption coefficients, dielectric constants, molar polarisabilities, transition moments and dipole moment derivatives of liquid N,N-dimethylacetamide–carbon tetrachloride mixtures

Biliškov

2011

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Ultrasonic study of molecular interactions in binary mixtures of aprotic and inert solvents

Cited by 16 publications

References 6 publications

Thermodynamic Studies of Ionic Interactions in Aqueous Solutions of Imidazolium-Based Ionic Liquids [Emim][Br] and [Bmim][Cl]

Thermodynamic Studies of Ionic Interactions in Aqueous Solutions of Imidazolium-Based Ionic Liquids [Emim][Br] and [Bmim][Cl]

Apparent molar volume and isentropic compressibility of ionic liquid 1-butyl-3-methylimidazolium bromide in water, methanol, and ethanol at T=(298.15 to 318.15)K

Infrared optical constants, molar absorption coefficients, dielectric constants, molar polarisabilities, transition moments and dipole moment derivatives of liquid N,N-dimethylacetamide–carbon tetrachloride mixtures

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