Acta Crystallographica Section E (Jul 2014)

β-K3Fe(MoO4)2Mo2O7

  • Amira Souilem,
  • Mohamed Faouzi Zid,
  • Ahmed Driss

DOI
https://doi.org/10.1107/S1600536814013087
Journal volume & issue
Vol. 70, no. 7
pp. i38 – i38

Abstract

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The title compound, tripotassium iron(III) bis(orthomolybdate) dimolybdate, was obtained by a solid-state reaction. The main structural building units are one FeO6 octahedron, two MoO4 tetrahedra and one Mo2O7 dimolybdate group, all with point group symmetries m. These units are linked via corner-sharing to form ribbons parallel to [010]. The three K+ cations are located between the ribbons on mirror planes and have coordination numbers of 10 and 12. Two O atoms of one of the MoO4 tetrahedra of the dimolybdate group are disordered over two positions in a 0.524 (11):0.476 (11) ratio. The structure of the title compound is compared briefly with that of Rb3FeMo4O15.