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  • Hydration of simple ions. Effect of the charge density
    Kalyuzhnyi, Yura V. ; Vlachy, Vojko ; Dill, Ken A.
    Ions are often classified as kosmotropes or chaotropes depending on whether they order or disorder water, as determined by how much they change the viscosity of water. Collins has proposed that water ... ordering by an ion dependson its charge density, using a simple fused-sphere model (K. D. Collins, Biophys. J., 1997, 72, 65-76). To make his idea more quantitative, we have applied the site-site integral equation of Chandler, Silbey and Ladanyi to obtain the potential of the mean force between ions and water molecules. From the potential of mean force curves we obtain the activation energy for transferring a water molecule from near the ion to the bulk. The result for this quantity are in semi-quantitative agreement with experimental data for alkali halides and with theoretical results based on the TIP3P model of water.
    Vir: Acta chimica slovenica. - ISSN 1318-0207 (Vol. 48, [no.] 3, sep. 2001, str. 309-316)
    Vrsta gradiva - članek, sestavni del
    Leto - 2001
    Jezik - angleški
    COBISS.SI-ID - 23760133

    Povezava(-e):

    Digitalna knjižnica Slovenije - dLib.si

vir: Acta chimica slovenica. - ISSN 1318-0207 (Vol. 48, [no.] 3, sep. 2001, str. 309-316)

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