A very simple empirical modification of the Born equation

1989 ◽  
Vol 66 (8) ◽  
pp. 641 ◽  
Author(s):  
Pushkin M. Qureshi ◽  
Rishi K. Varshney
Keyword(s):  
Born Equation

Comparison of experimental values of .hivin.V20, .hivin.CP02, and .hivin.CV02 for aqueous sodium chloride with predictions using the Born equation at temperatures from 300 to 573.15 K at 17.7 MPa

1983 ◽  
Vol 87 (17) ◽  
pp. 3297-3300 ◽  
Author(s):  
Robert H. Wood ◽  
David Smith-Magowan ◽  
Kenneth S. Pitzer ◽  
P. S. Z. Rogers
Keyword(s):  
Sodium Chloride ◽  
Aqueous Sodium ◽  
Born Equation ◽  
Experimental Values

Determination of Basicities of Organic Solvents and Absolute Electrode Potentials (E0-Values) of Monovalent Ions in Organic Solvents based on Absolute Values of Gibbs Energies of Solvation of Single Ions

2004 ◽  
Vol 218 (5) ◽  
pp. 515-550 ◽  
Author(s):  
Ranjana Bhattacharyya ◽  
S. C. Lahiri
Keyword(s):  
Organic Solvents ◽  
Gibbs Energies ◽  
Electrode Potentials ◽  
Induced Dipole ◽  
Single Scale ◽  
Monovalent Ions ◽  
Born Equation ◽  
The Absolute ◽  
Single Standard

AbstractSingle ion Gibbs energies of monovalent ions in fourteen solvents (water, methanol, NMF, PC, ethanol, n-propanol, iso-propanol, n-butanol, t-butanol, ethylene glycol, acetone, THF, 1,4-dioxan, acetonitrile) with or without (ion–dipole, ion–induced dipole, ion–quadrupole) interactions were determined. The basicity of the solvents was determined from the absolute values of ΔG0solvation(H+) or ΔG0solution(H+) based on single standard state utilising the modified Born equation suggested by Lahiri. The method involves no arbitrary assumptions. A single scale for the absolute electrode potentials (E0 values) has been determined based on calculated Gibbs energies of solvation or solution of single ions. Appropriation of Gibbs energies of solvation of electrolytes into single ion values is not possible. Gibbs energies of formation of electrolytes in solvents must be taken into consideration. Stabilisation energies of electrolytes (MX) in solvents akin to lattice energies in solids were determined.

A Modified Born Equation for Solvation Energy of Ions

1992 ◽  
Vol 61 (11) ◽  
pp. 4247-4250 ◽  
Author(s):  
Anil Kumar
Keyword(s):  
Solvation Energy ◽  
Born Equation

Effect of medium on dissociation of carboxylic acids

1985 ◽  
Vol 50 (12) ◽  
pp. 2670-2678 ◽  
Author(s):  
Jiří Mollin ◽  
Zdeněk Pavelek ◽  
Jitka Navrátilová ◽  
Alena Recmanová
Keyword(s):  
Benzoic Acid ◽  
Organic Solvent ◽  
Carboxylic Acids ◽  
Ion Transfer ◽  
Electrostatic Forces ◽  
Two Component ◽  
Born Equation

pK Values of carboxylic acids have been measured in mixtures water-organic solvent and confronted with the Born equation. Solubilities of benzoic acid have been measured. From the pK and solubilities found the ΔGt0(C6H5COO-) values have been calculated for various two-component solvents. The results agree with the idea that the ion transfer into another medium is affected not only by electrostatic, but also by non-electrostatic forces.

scholarly journals A Further Modification of the Born Equation

1991 ◽  
Vol 64 (10) ◽  
pp. 3035-3038 ◽  
Author(s):  
Takehiro Abe
Keyword(s):  
Born Equation

Thermodynamics of a charged hard sphere in a compressible dielectric fluid. A modification of the Born equation to include the compressibility of the solvent

1981 ◽  
Vol 85 (25) ◽  
pp. 3944-3949 ◽  
Author(s):  
Robert H. Wood ◽  
Jacques R. Quint ◽  
Jean Pierre E. Grolier
Keyword(s):  
Hard Sphere ◽  
Dielectric Fluid ◽  
Born Equation

Ion–ion–solvent interactions in aqueous ionic cosolvent systems. II. Single-ion transfer free energies and entropies using tetraphenylarsonium tetraphenylborate reference electrolyte assumption in aqueous sodium nitrate solvent system

1987 ◽  
Vol 65 (11) ◽  
pp. 2595-2604 ◽  
Author(s):  
Sibaprasad Rudra ◽  
Himansu Talukdar ◽  
Kiron K. Kundu
Keyword(s):  
Solvent System ◽  
Mirror Image ◽  
Scaled Particle Theory ◽  
Free Energies ◽  
Emf Measurements ◽  
Solvent Interactions ◽  
Rational Explanation ◽  
Born Equation ◽  
Cavity Effects ◽  
Reference Electrolyte

Single-ion tranfer free energies [Formula: see text] and entropies [Formula: see text] of some electrolytes from water to 1, 2, and 4m aqueous NaNO3 solvents have been determined at 25 °C using the widely used tetraphenylarsonium tetraphenylborate (Ph4AsBPh4) reference electrolyte assumption, after due modification for this solvent system. The required [Formula: see text] and [Formula: see text] values of Ph4AsPi, KBPh4, KPi, AgPi, PbPi2, Ag2CrO4, and AgCl where Pi = picrate, were determined by measuring solubilities at 15–35 °C of the solutes except AgCl, the values of which were determined from emf measurements. Analysis of [Formula: see text] and [Formula: see text] values of the ions as well as their respective true interaction effects, [Formula: see text] and [Formula: see text] as obtained after correcting for their cavity effects [Formula: see text] and [Formula: see text] estimated by the scaled particle theory (SPT) and Born-type electrostatic effects, [Formula: see text] and [Formula: see text] computed by simple Born equation, reveals that the behaviour of the ions in this ionic cosolvent system is chiefly guided by one or several effects of ion–ion–solvent, Born and cavity forming interactions. Moreover, a rational explanation has been offered to explain the observed mirror-image entropie behaviour of simple cations and anions in light of Kundu etal.'s four-steps transfer process.

Calculation of Gibbs Energies of Hydration of Monovalent Ions: Examination of Born Equation and its Reevaluation

2000 ◽  
Vol 214 (1) ◽  
Author(s):  
Sujit Chandra Lahiri
Keyword(s):  
Modified Method ◽  
Gibbs Energies ◽  
Monovalent Ions ◽  
Born Equation ◽  
Hydration Energies

The limitations of Born equation and its different modifications for the calculation of Gibbs energies of hydration of ions have been briefly reviewed. A modified method for the calculation of hydration energies of ions has been suggested. The hydration energies thus obtained have been compared with the data in the literature.

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