Ionic hydration number in V2O5 intercalated xerogels Mx(H2O)yV2O5

Abstract

Ionic hydration numbers in the interfoliar water contained between V₂O₅ xerogel ribbons have been determined from the thermal behaviour of the intercalated compounds Mⁿ⁺_x(H₂O)_y(V₂O₅)^0.3–0.4. An empirical relationship between the ionic hydration numbers and the field strengths Z/r of the ions has been established. The results are analogous to the corresponding data reported in the chemical literature. The cations are found to have a similar behaviour in the non-freezing interfoliar water inserted between V₂O₅ xerogel ribbons and in the free liquid water.