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  • 1
    Digitale Medien
    Digitale Medien
    Conductance of 1:1 electrolytes in methyl formate (1987)
    Springer
    Journal of solution chemistry 16 (1987), S. 225-235 
    Details
    ISSN: 1572-8927
    Schlagwort(e): Conductivities ; 1:1 electrolytes ; methyl formate ; ion pairs ; triple ions ; ion solvation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract The electrolytic conductivities of LiClO4, LiAlCl4, LiAsF6, NaClO4, NaBPh4, and Bu4NClO4 have been measured in methyl formate at 25°C. Evidence is presented for strong association between the perchlorate ion and the formyl proton of the solvent. Ion association and triple ion formation constants suggest that LiClO4, LiAlCl4, and NaClO4 form solvent separate ion pairs and triple ions. NaBPh4 forms contact ion pairs and triple ions, and the remaining salts appear to form both types of ion pairs and triple ions.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00646988
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Conductance of 1∶1 electrolytes in methyl acetate (1989)
    Springer
    Journal of solution chemistry 18 (1989), S. 977-991 
    Details
    ISSN: 1572-8927
    Schlagwort(e): Conductivity ; 1∶1 electrolytes ; methyl acetate ; ion pairs ; triple ions ; ion solvation ; activity coefficients
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract The electrolytic conductances of NaClO4, NaB(C6H5)4, (n-C4H9)4NClO4 and (n-C4H9)4NPF6 have been measured in methyl acetate at 25°C. A dominating feature of these electrolyte solutions is, as expected, strong ion pairing. In addition it is found that the formation of triple ions makes an important contribution to the overall molar conductivities. The data suggest that there are strong ion-solvent interactions leading to structure-enhanced (after Diamond) ion association and triple ion formation which has an exact analogy in the phenomena of salting-in. The effects of increasing solution permittivity and viscosity are discussed, particularly in regard to comparing two models of treating conductivity data. The first model includes ion pairs and triple ions, and the second model ignores triple ion formation ascribing the anomalous increase in molar conductivities to a decrease in the ion association equilibrium constant caused by increasing solution permittivity.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00647897
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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