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Acta Cryst. (2005). E61, i165-i167  [ doi:10.1107/S1600536805021616 ]

Un nouveau diarséniate Cs3Fe2(AsO4)3 à environnement exclusivement pentagonal du fer

N. Ouerfelli, M. F. Zid and T. Jouini

Abstract: The crystal structure of the new iron(III) arsenate, viz. tricaesium diiron(III) tris(arsenate), Cs3Fe2(AsO4)3, is built up from corner-sharing AsO4 tetrahedra and FeO5 trigonal bipyramids forming a three-dimensional open framework, which contains two channels running along the c axis where the Cs+ cations are located. This compound is a rare example of an oxide possessing Fe exclusively in trigonal-bipyramidal coordination.

Online 13 juillet 2005


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