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Linear Solvation Energy Relationships. Standard Molar Gibbs Free Energies and Enthalpies of Transfer of Ions from Water into Nonaqueous Solvents
| Content Provider | Semantic Scholar |
|---|---|
| Author | Marcus, Yizhak Kamlet, Mortimer J. Taft, Robert W. |
| Copyright Year | 1988 |
| Abstract | The summation extends over all the products of the A,(j) properties of the ith ion X pertinent to their j-type interactions with the solvents S, and the differences between the Po') properties of the solvents S and those of water W. Of the multitude of solvent properties P(j) that may be considered, only four took care of almost all of the variance of the Gibbs free-energy data. These are the propensity of the solvent to accept a hydrogen bond or to donate an electron pair, described by its donor number, DN,596 its propensity to donate a hydrogen bond (for protic solvents) or accept an electron pair, described by its ET value,' the reciprocal of its dielectric constant, l/c, and its cohesive energy density or the square of its solubility parameter, a2. Of these, the donor number, DN, did not play a significant role in explaining the variance of the anion transfer data, as might be expected, but unexpectedly the electron-pair-acceptance index, ET, was required for explaining the variance of the cation-transfer data. The regression was applied in two stages, first for each ion on the properties of the solvents and then for each of the coefficients found in the first stage on the properties of the ions. Since for |
| Starting Page | 3613 |
| Ending Page | 3622 |
| Page Count | 10 |
| File Format | PDF HTM / HTML |
| DOI | 10.1021/j100323a057 |
| Alternate Webpage(s) | http://tera.chem.ut.ee/~ivo/Agnes/UAS/Marcus_Kamlet_Taft_JPC_1988.pdf |
| Alternate Webpage(s) | https://doi.org/10.1021/j100323a057 |
| Volume Number | 92 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
