Tripraseodymium pentairon(III) dodecaoxide, Pr3Fe5O12: a synchrotron radiation study
2009
The title compound, pentairon tripraseodymium dodecaoxide (PrIG), has an iron garnet structure. There are two Fe site symmetries. One of the Fe atoms is coordinated by six O atoms, forming a slightly distorted octahedron, and has \overline{3} site symmetry. The other Fe atom is coordinated by four O atoms, forming a slightly distorted tetrahedron, and has \overline{4} site symmetry. FeO6 octahedra and FeO4 tetrahedra are linked together by corners. The Pr atom is coordinated by eight O atoms, forming a distorted dodecahedron, and has 222 site symmetry. The O atoms occupy the general positions.
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