Characterization of Ionic Liquid Solvents Using a Temperature Independent, Ion-specific Abraham Parameter Model

Characterization of Ionic Liquid Solvents Using a Temperature Independent, Ion-specific Abraham Parameter Model

Date: December 2014
Creator: Stephens, Timothy W.
Description: Experimental data for the logarithm of the gas-to-ionic liquid partition coefficient (log K) have been compiled from the published literature for over 40 ionic liquids over a wide temperature range. Temperature independent correlations based on the Gibbs free energy equation utilizing known Abraham solvation model parameters have been derived for the prediction of log K for 12 ionic liquids to within a standard deviation of 0.114 log units over a temperature range of over 60 K. Temperature independent log K correlations have also been derived from correlations of molar enthalpies of solvation and molar entropies of solvation, each within standard deviations of 4.044 kJ mol-1 and 5.338 J mol-1 K-1, respectively. In addition, molar enthalpies of solvation and molar entropies of solvation can be predicted from the Abraham coefficients in the temperature independent log K correlations to within similar standard deviations. Temperature independent, ion specific coefficients have been determined for 26 cations and 15 anions for the prediction of log K over a temperature range of at least 60 K to within a standard deviation of 0.159 log units.
Contributing Partner: UNT Libraries
Comments Concerning "Study of Molecular Interaction in Binary Liquid Mixtures of Ethyl Acetoacetate with Chloroform and Dimethylsulphoxide using Excess Acoustic Parameters and Spectroscopic Methods

Comments Concerning "Study of Molecular Interaction in Binary Liquid Mixtures of Ethyl Acetoacetate with Chloroform and Dimethylsulphoxide using Excess Acoustic Parameters and Spectroscopic Methods

Date: February 18, 2014
Creator: Acree, William E. (William Eugene) & Stephens, Timothy W.
Description: Article commenting on a previously published article, "Study of molecular interaction in binary liquid mixtures of ethyl acetoacetate with chloroform and dimethylsulphoxide using excess acoustic parameters and spectroscopic methods."
Contributing Partner: UNT College of Arts and Sciences
Comments Regarding "Density, Speed of Sound, Refractive Index and Derivatives Properties of the Binary Mixture N-Hexane + N-Heptane (or N-Octane or N-Nonane), T = 288.15 - 313.15 K"

Comments Regarding "Density, Speed of Sound, Refractive Index and Derivatives Properties of the Binary Mixture N-Hexane + N-Heptane (or N-Octane or N-Nonane), T = 288.15 - 313.15 K"

Date: April 9, 2013
Creator: Acree, William E. (William Eugene) & Stephens, Timothy W.
Description: This article offers comment on "Density, speed of sound, refractive index and derivatives properties of the binary mixture N-Hexane + N-Heptane (or N-Octane or N-Nonane), T=288.15 - 313.15 K."
Contributing Partner: UNT College of Arts and Sciences
Infinite Dilution Activity Coefficients of Solutes Dissolved in Two Trihexyl(tetradecyl)phosphonium ionic liquids

Infinite Dilution Activity Coefficients of Solutes Dissolved in Two Trihexyl(tetradecyl)phosphonium ionic liquids

Date: May 7, 2014
Creator: Mutelet, Fabrice; Alonso, Dominique; Stephens, Timothy W.; Acree, William E. (William Eugene) & Baker, Gary A.
Description: Article discussing infinite dilution activity coefficients of solutes dissolved in two trihexyl(tetradecyl)phosphonium ionic liquids.
Contributing Partner: UNT College of Arts and Sciences
Activity Coefficients at Infinite Dilution for Organic Solutes Dissolved in Three 1-Alkyl-1-methylpyrrolidinium Bis(trifluoromethylsulfonyl)imide Ionic Liquids Bearing Short Linear Alkyl Side Chains of Three to Five Carbons

Activity Coefficients at Infinite Dilution for Organic Solutes Dissolved in Three 1-Alkyl-1-methylpyrrolidinium Bis(trifluoromethylsulfonyl)imide Ionic Liquids Bearing Short Linear Alkyl Side Chains of Three to Five Carbons

Date: July 30, 2013
Creator: Mutelet, Fabrice; Hassan, El-Sayed R. E.; Stephens, Timothy W.; Acree, William E. (William Eugene) & Baker, Gary A.
Description: Article discussing activity coefficients at infinite dilution for organic solutes dissolved in three 1-alkyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquids bearing short linear alkyl side chains of three to five carbons.
Contributing Partner: UNT College of Arts and Sciences
Abraham model correlations for predicting gas-to-liquid partition coefficients and activity coefficients of organic solutes dissolved in 1-(2-methoxyethyl)-1-methylpyrrolidinium tris(pentafluoroethyl) trifluorophosphate

Abraham model correlations for predicting gas-to-liquid partition coefficients and activity coefficients of organic solutes dissolved in 1-(2-methoxyethyl)-1-methylpyrrolidinium tris(pentafluoroethyl) trifluorophosphate

Date: 2013
Creator: Jiang, Rui; Anderson, Jared L.; Stephens, Timothy W.; Acree, William E. (William Eugene) & Abraham, M. H. (Michael H.)
Description: Article on Abraham model correlations for predicting gas-to-liquid partition coefficients and activity coefficients of organic solutes.
Contributing Partner: UNT College of Arts and Sciences
Correlation of the Solubilizing Abilities of 1-Butyl-1-methyl-pyrrolidinium Tris(pentafluoroethyl)-trifluorophosphate, 1-Butyl-1-methylpyrrolidinium Triflate and 1-Methoxyethyl-1-methylmorpholinium Tris(pentafluoroethyl) trifluorophosphate

Correlation of the Solubilizing Abilities of 1-Butyl-1-methyl-pyrrolidinium Tris(pentafluoroethyl)-trifluorophosphate, 1-Butyl-1-methylpyrrolidinium Triflate and 1-Methoxyethyl-1-methylmorpholinium Tris(pentafluoroethyl) trifluorophosphate

Date: May 2013
Creator: Twu, Pamela; Anderson, Jared L.; Stephens, Timothy W.; Wilson, Anastasia; Acree, William E. (William Eugene) & Abraham, M. H. (Michael H.)
Description: This article discusses the correlation of the solubilizing abilities.
Contributing Partner: UNT College of Arts and Sciences
Correlations of solute partitioning and enthalpies of solvation for organic solutes in ionic liquids using a temperature independent free energy relationship

Correlations of solute partitioning and enthalpies of solvation for organic solutes in ionic liquids using a temperature independent free energy relationship

Date: 2013
Creator: Stephens, Timothy W.; Willis, Bria; Dabadge, Nishu; Tian, Amy; Acree, William E. (William Eugene) & Abraham, M. H. (Michael H.)
Description: This article discusses correlations of solute partitioning and enthalpies of solvation for organic solutes in ionic liquids using a temperature independent free energy relationship.
Contributing Partner: UNT College of Arts and Sciences
Determination of the Solubilizing Character of 1-Methoxyethyl-1-Methylpiperidinium Tris(Pentafluoroethyl)Trifluorophosphate Based on the Abraham Solvation Parameter Model

Determination of the Solubilizing Character of 1-Methoxyethyl-1-Methylpiperidinium Tris(Pentafluoroethyl)Trifluorophosphate Based on the Abraham Solvation Parameter Model

Date: 2012
Creator: Twu, Pamela; Anderson, Jared L.; Stephens, Timothy W.; Acree, William E. (William Eugene) & Abraham, M. H. (Michael H.)
Description: Article on determination of solubilizing character of 1-methoxyethyl-1-methylpiperidinium tris(pentafluoroethyl) trifluorophosphate based on the Abraham solvation parameter model.
Contributing Partner: UNT College of Arts and Sciences
Enthalpy of Solvation Correlations for Organic Solutes and Gases Dissolved in 1-Propanol and Tetrahydrofuran

Enthalpy of Solvation Correlations for Organic Solutes and Gases Dissolved in 1-Propanol and Tetrahydrofuran

Date: May 20, 2011
Creator: Stephens, Timothy W.; Chou, Vicky; Quay, Amanda N.; Acree, William E. (William Eugene) & Abraham, M. H. (Michael H.)
Description: This article discusses the enthalpy of solvation correlations for organic solutes and gases dissolved in 1-propanol and tetrahydrofuran.
Contributing Partner: UNT College of Arts and Sciences
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