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The iron phosphate CaFe(3)(PO(4))(3)O.

ABSTRACT: A new iron phosphate, calcium triiron(III) tris-(phosphate) oxide, CaFe(3)(PO(4))(3)O, has been isolated and shown to exhibit a three-dimensional structure built by FeO(6) octa-hedra, FeO(5) trigonal bipyramids and PO(4) tetra-hedra. The FeO(x) (x = 5, 6) polyhedra are linked through common corners and edges, forming [Fe(6)O(28)](?) chains with branches running along [010]. Adjacent chains are connected by the phosphate groups via common corners and edges, giving rise to a three-dimensional framework analogous to those of the previously reported SrFe(3)(PO(4))(3)O and Bi(0.4)Fe(3)(PO(4))(3)O structures, in which the Ca(2+) cations occupy a single symmetry non-equivalent cavity.

SUBMITTER: Hidouri M

PROVIDER: S-EPMC2977148 | biostudies-literature | 2009 Jul

REPOSITORIES: biostudies-literature

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The iron phosphate CaFe(3)(PO(4))(3)O.

Hidouri Mourad M Ben Amara Mongi M

Acta crystallographica. Section E, Structure reports online 20090722 Pt 8

A new iron phosphate, calcium triiron(III) tris-(phosphate) oxide, CaFe(3)(PO(4))(3)O, has been isolated and shown to exhibit a three-dimensional structure built by FeO(6) octa-hedra, FeO(5) trigonal bipyramids and PO(4) tetra-hedra. The FeO(x) (x = 5, 6) polyhedra are linked through common corners and edges, forming [Fe(6)O(28)](∞) chains with branches running along [010]. Adjacent chains are connected by the phosphate groups via common corners and edges, giving rise to a three-dimensional fram ...[more]

PMID: 21583300

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