Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 8 (August 2013)

inorganic compounds

Acta Cryst. (2013). E69, i52    [ doi:10.1107/S1600536813019569 ]


A. Badri, M. Hidouri and M. Ben Amara

Abstract: A new iron phosphate, rubidium copper(II) iron(III) bis­(phosphate), RbCuFe(PO4)2, has been synthesized as single crystals by the flux method. This compound is isostructural with KCuFe(PO4)2 [Badri et al. (2011), J. Solid State Chem. 184, 937-944]. Its structure is built up from Cu2O8 units of edge-sharing CuO5 polyhedra, inter­connected by FeO6 octa­hedra through common corners to form undulating chains that extend infinitely along the [011] and [01-1] directions. The linkage of such chains is ensured by the PO4 tetra­edra and the resulting three-dimensional framework forms quasi-elliptic tunnels parallel to the [101] direction in which the Rb+ cations are located.

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