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Acta Cryst. (2003). E59, i105-i106 [ doi:10.1107/S1600536803014272 ]
Abstract: The crystal structure of the double salt hydronium pentaaquacopper(II) triperchlorate, (H3O)[Cu(H2O)5](ClO4)3, has been determined at 180 K. In space group P3221, the structure contains a square-pyramidal [Cu(H2O)5]2+ moiety with its basal plane capped by one edge of a perchlorate anion, so that CuII exhibits [5+2] coordination. Both cations and one of the anions lie on twofold rotation axes.
Online 30 June 2003
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