Preferential solvation of ions in mixed solvents. Part 4.—Preferential solvation of Cu+ in acetone + acetonitrile and N,N-dimethylacetamide + acetonitrile mixtures using conductance measurements

Gill, Dip Singh; Kumari, Neena; Chauhan, M. S.

doi:10.1039/f19858100687

Cited by 40 publications

(7 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Binary water/methanol mixtures are frequently used in a variety of tasks, from enhancing droplet formation and the ionization efficiency in electrospray ionization mass spectrometry to separations. , Trumm and co-workers utilized a 1:1 water/methanol mixture as the aqueous phase in a solvent extraction scheme in order to increase the solubility of bis(triazinyl)pyridine ligands (extractants showing a preference for An III species over Ln III species but only sparingly soluble in water) to study their complexation with Cm III and Eu III . While significant work has been done on the interaction of the water/methanol mixture with ions, − singly charged main-group elements, such as Na + or Cl – , have been the focus of the bulk of prior studies. Herein we extend the current understanding of Cm 3+ solvation in water to mixed water/methanol environments.…”

Section: Introductionmentioning

confidence: 99%

Structural and Thermodynamic Properties of the Cm^III Ion Solvated by Water and Methanol

et al. 2016

View full text Add to dashboard Cite

The geometric and electronic structures of the 9-coordinate Cm(3+) ion solvated with both water and methanol are systematically investigated in the gas phase at each possible solvent-shell composition and configuration using density functional theory and second-order Møller-Plesset perturbation theory. Ab initio molecular dynamics simulations are employed to assess the effects of second and third solvent shells on the gas-phase structure. The ion-solvent dissociation energy for methanol is greater than that of water, potentially because of increased charge donation to the ion made possible by the electron-rich methyl group. Further, the ion-solvent dissociation energy and the ion-solvent distance are shown to be dependent on the solvent-shell composition. This has implications for solvent exchange, which is generally the rate-limiting step in complexation reactions utilized in the separation of curium from complex metal mixtures that derive from the advanced nuclear fuel cycle.

show abstract

Section: Introductionmentioning

confidence: 99%

Structural and Thermodynamic Properties of the Cm^III Ion Solvated by Water and Methanol

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Precise compressibility data of electrolytes in nonaqueous solvents are rare and in acetonitrile (AN) + adiponitrile (ADN) system are completely lacking. The electromotive force (emf), , solubility, − transport number, , Fourier transform infrared (FTIR), NMR, ,− electron spin resonance (ESR), , conductance, , and viscosity ,, studies have been used to investigate the solvation behavior of ions in mixed solvents. The enthalpy and Gibbs energy of transfer , from a reference solvent to a solvent mixture have also been used to provide meaningful information about the solvation of ions in mixed solvents.…”

Section: Introductionmentioning

confidence: 99%

Compressibility Studies of Some Copper(I), Silver(I), and Tetrabutylammonium Salts in Acetonitrile + Adiponitrile Binary Mixtures

2010

Self Cite

View full text Add to dashboard Cite

Ultrasonic velocities and densities of some copper(I), silver(I), and tetrabutylammonium salts have been measured in the concentration range of (0.002 to 0.28) m in binary mixtures of acetonitrile (AN) + adiponitrile (ADN) containing 1.0, 0.9, 0.8, 0.7, 0.6, and 0.5 mol fraction of AN at 298.15 K. The isentropic compressibility (κ s ) and apparent molal isentropic compressibility (κ s,φ ) in various solvent systems have been calculated by using ultrasonic velocity (u) and partial molal volume (V φ ) data, respectively. Limiting apparent molal isentropic compressibilities (κ s,φ o ) for various salts have been evaluated from κ s,φ versus m 1/2 plots and split into the contributions of individual ions (κ s,φ o ) ( . The (κ s,φ o ) ( values for copper(I) and silver(I) ions are found to be negative over the entire solvent composition range which indicates strong solvation of these ions. The (κ s,φ o ) ( values becoming more and more negative with an increase in the ADN composition shows that the extent of solvation increases with an increase in ADN composition. The large and positive (κ s,φ o ) ( values for Bu 4 N + and Ph 4 B -indicate some special type of interaction with the solvent molecules, which increases with the increase of ADN composition in the mixture.

show abstract

“…3 have been computed from the equation kT 4 T i rj0 D? (8 ) Recently G ill [13], following Zwanzig's theoretical attempt [14], has proposed a modification of Stokes' law to calculate an ionic radius from an ionic conductance. Taking into account the relation between the ionic conductance and the ionic self diffusion coefficient.…”

Section: (7)mentioning

confidence: 99%

Self-Diffusion of Sodium, Chloride and Iodide Ions in Methanol-Water Mixture

Hawlicka

1986

Zeitschrift Für Naturforschung A

View full text Add to dashboard Cite

The self-diffusion coefficients of Na+ , C l-and I -in methanol-water solutions at 35 ± 0.01 °C have been measured in their dependence on the salt molarity in the range 1 • 10-4-1 • 10-2 mol d m -3. The ionic self-diffusion coefficients in infinitely diluted solutions have been computed. The influence of the solvent composition on the solvation of the ions is discussed. A preferential hydration of N a+ , Cl -and I " ions in water-methanol mixtures has been found.In spite of the great interest in the porperties of water-organic solvent electrolyte solutions, data on the ionic mobilities in such systems are scarce. Usually the ionic m obility is calculated from the equivalent conductance and the transference num ber. Ionic transference numbers have been reported for water and 17 organic solvents [1], but only for a few water-organic solvents mixtures.Sim ilar information can be obtained from the ionic self-diffusion coefficients, which have been reported for a few water-organic solvent systemsThe aim of the present work was to determine the self-diffusion coefficients of sodium, chloride and iodide ions in water-methanol mixtures and to study the ion-solvent interactions. ExperimentalMethanol (spectroscopy grade, Merck), N al (suprapur, Merck), N aC l (suprapur, Merck) and double distilled, degassed water were used to prepare the solutions. 22N a, and N a 36 from the USSR, and 24Na, N a 125 and ,31I from Poland were used as radioactive tracers. The radioactivities of 24Na, 36C1 and l25I were measured in tolueneethanol solutions o f 2,5-diphenyloxazole (PPO) with a liquid scintillation counter, whereas the radioacitivites of 22Na and 131I were determined in * Present address and reprint requests to Max-PlanckInstitut für Chemie, Saarstraße 23, D-6500 Mainz.

show abstract

Preferential solvation of ions in mixed solvents. Part 4.—Preferential solvation of Cu+ in acetone + acetonitrile and N,N-dimethylacetamide + acetonitrile mixtures using conductance measurements

Cited by 40 publications

References 1 publication

Structural and Thermodynamic Properties of the Cm^III Ion Solvated by Water and Methanol

Structural and Thermodynamic Properties of the Cm^III Ion Solvated by Water and Methanol

Compressibility Studies of Some Copper(I), Silver(I), and Tetrabutylammonium Salts in Acetonitrile + Adiponitrile Binary Mixtures

Self-Diffusion of Sodium, Chloride and Iodide Ions in Methanol-Water Mixture

Contact Info

Product

Resources

About

Preferential solvation of ions in mixed solvents. Part 4.—Preferential solvation of Cu+ in acetone + acetonitrile and N,N-dimethylacetamide + acetonitrile mixtures using conductance measurements

Cited by 40 publications

References 1 publication

Structural and Thermodynamic Properties of the CmIII Ion Solvated by Water and Methanol

Structural and Thermodynamic Properties of the CmIII Ion Solvated by Water and Methanol

Compressibility Studies of Some Copper(I), Silver(I), and Tetrabutylammonium Salts in Acetonitrile + Adiponitrile Binary Mixtures

Self-Diffusion of Sodium, Chloride and Iodide Ions in Methanol-Water Mixture

Contact Info

Product

Resources

About

Structural and Thermodynamic Properties of the Cm^III Ion Solvated by Water and Methanol

Structural and Thermodynamic Properties of the Cm^III Ion Solvated by Water and Methanol