Determination of the absolute values of Gibbs energy of hydration or solvation Delta G(abs)(0)(M(+)or X-)(h) (or) (s) of monovalent (alkali metal and halide) ions and other thermodynamic parameters in aqueous and non-aqueous solvents using a single standard state and analysis of Delta G(abs)(0)(M+ or X-)(h or s) values based on cluster-ion solvation method
Bhattacharyya, R; Lahiri, SC
| HERO ID | 1133331 |
|---|---|
| In Press | No |
| Year | 2008 |
| Title | Determination of the absolute values of Gibbs energy of hydration or solvation Delta G(abs)(0)(M(+)or X-)(h) (or) (s) of monovalent (alkali metal and halide) ions and other thermodynamic parameters in aqueous and non-aqueous solvents using a single standard state and analysis of Delta G(abs)(0)(M+ or X-)(h or s) values based on cluster-ion solvation method |
| Authors | Bhattacharyya, R; Lahiri, SC |
| Journal | Journal of the Indian Chemical Society |
| Volume | 85 |
| Issue | 12 |
| Page Numbers | 1249-1268 |
| Abstract | Absolute values of Gibbs energy of hydration (h) or solvation (s) of alkali metal and halide ions AGO,h,(,N.I+ or X-)h or and other thermodynamic parameters in aqueous and non-aqueous solvents (methanol, ethanol, it-propanol, isopropanol, n-butanol, ethylene glycol,. propylene carbonate (PC), N-methyl formamide (NMF), acetone, tetrahydrofuran (THF), 1,4-dioxan, acetonitrile) were determined directly using modified Born equation and a single standard state [i.e. Delta G(0) and Delta H-0 (but not Delta S-0) of H-2 gas and other elements to be zero in their elementary standard states at 1 atm. pressure (1 bar) and 298 KJ. The Delta H-abs(0)(M+ or X-)(h or s) and Delta G(0)(M+ or X-)(h) (or s) values are calculated considering ion-dipole, ion-quadrupole interactions and without considering the interaction terms. Very few data are available in non-aqueous solvents for comparison. Most of the single ion values (particularly for the anions) stiffer from limitations associated with the erroneous principle of division of solvation energies Delta G(h or s)(0) or Delta H-h or s(0)(MX) of electrolytes into single ion values. <br> <br>Delta G(0)(M+ or X-)(h) values determined using cluster-ion solvation data have also been presented. The values have been claimed to be most accurate in recent years. However, the method involves a number of assumptions of doubtful validity and the values cannot be regarded to be equivalent to Delta G(0)(M+ or X-)(h or s) determined by other workers using different methods. <br> <br>Coupling the values of Delta G(0)(M+ or X-)(h or s) and Delta G(0)(M+ or X-)(h or s) with Delta G(0)(M+ or X-)(g) and Delta H-0(M+ or X-)(g) values in the gaseous state, Delta G(0)(M+ or X-)(water) (or) (org.) (solvent), Delta H-0(M+ or X-)(water) (or) (org.) (solvent) and Delta S-0(M+ or X-)(water or) (org.) (solvent) [values in wAter and in organic solvents] are determined. |
| Wosid | WOS:000262687900009 |
| Url | https://www.scopus.com/inward/record.uri?eid=2-s2.0-58949096233&partnerID=40&md5=9cc1f78cc2590fba92735c6311185bf4 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science 000262687900009 |
| Is Public | Yes |
| Language Text | English |
| Keyword | Alkali metal ions; aqueous solvent; absolute values : enthalpy and Gibbs energy of hydration or solvation of ions; Born equation or modified Born equation; cluster-ion solvation; electron affinity (EA); halide ions; ionic additivity; ion-dipole interactions; ion-quadrupole interactions; ionization potential (IP); non-aqueous solvent |
| Is Qa | No |