Received 25 November 2013
The poly-phosphate Li2Mn(PO3)4 was synthesized and its structure characterized from powder diffraction data by Averbuch-Pouchot & Durif [J. Appl. Cryst. (1972), 5, 307-308]. These authors showed that the structure of this phosphate is isotypic to that of Li2Cd(PO3)4, as confirmed by the present work. The structure is built from infinite zigzag polyphosphate chains, [(PO3)-]n, extending along . These polyphosphate chains are connected by sharing vertices with MnO6 octahedra (site symmetry .m.) and Li2O7 polyhedra, which form also chains parallel to . Adjacent chains are linked by common vertices of polyhedra in such a way as to form porous layers parallel to (100). The three-dimensional framework delimits empty channels extending along .
For potential applications of lithium and manganese phosphates, see: Parada et al. (2003); Jouini et al. (2003); Bian et al. (2003); Aravindan et al. (2013); Drezen et al. (2007); Bakenov & Taniguchi (2010); Adam et al. (2008). For a previous structure determination from powder data, see: Averbuch-Pouchot & Durif (1972). For the isotypic structure of Li2Cd(PO3)4, see: Averbuch-Pouchot et al. (1976).
Data collection: APEX2 (Bruker, 2009); cell refinement: SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BR2233 ).
The authors thank the Unit of Support for Technical and Scientific Research (UATRS, CNRST) for the X-ray measurements.
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