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005 | 20230426094057.0 | ||
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_aAIKTC-KRRC _cAIKTC-KRRC |
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_910050 _aSuresh Kumar |
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245 | _aIon association and solvation characteristics of Li+, Na+ and K+ ions in binary mixtures of 2-Aminoethanol + N,N-Dimethylacetamide probed by conductometry study at 298.15 K and 308.15 K | ||
250 | _aVol.61(3), Mar | ||
260 |
_aNew Delhi _bCSIR _c2022 |
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300 | _a245-253p. | ||
520 | _aMolar conductances (Λ) of LiClO4, NaClO4, KSCN, Bu4NSCN, Bu4NClO4 and Bu4NBPh4 in binary solvent mixtures of 2-aminoethanol (AE) and N,N-dimethylacetamide (DMA) containing 25, 50, 60, 80 and 100 mol% DMA have been measured at 298.15 K and 308.15 K in the concentration range of (30-500) × 10-3 mol kg-1. The conductance data of the electrolytes in the binary mixtures of AE+DMA are analyzed using Shedlovsky’s equation to evaluate limiting molar conductances (Λo), association constants (KA), Walden products (Λoηo), hydrodynamic radii (RH) and the standard free energies of association (∆GA0). The individual limiting ionic molar conductances are obtained using the reference electrolyte tetrabutylammonium perchlorate (Bu4NClO4) and tetrabutylammonium tetraphenylborate (Bu4NBPh4). A modified form of Stokes’ law helped to determine the solvated ionic radii (ri) in solutions and are assessed in the facet of ion-ion, ion-solvent interactions and show structural changes in the binary mixtures. The results has revealed that the solvated radii (ri) values of Li+, Na+ and K+ ions show preferential solvation of these ions by DMA in AE+DMA binary mixtures and these interactions get weaker with the increase in temperature. Also, the preferential solvation and ion-solvent interactions of these ions in binary mixtures are proved by the analysis of Walden products (Λoηo) and the standard free energies of association (∆GA0) with the effect of temperature. | ||
650 | 0 |
_95009 _aGENERAL CHEMISTRY |
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700 |
_920540 _aAnand, Hardeep |
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773 | 0 |
_tIndian journal of chemistry (Section B) _x0019-5103 _dNew Delhi NISCAIR-CSIR 2005 |
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856 |
_uhttp://op.niscpr.res.in/index.php/IJC/article/view/61713 _yClick here |
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_2ddc _cAR |