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Structural investigation of the Na-Fe-Mo-O system
E Muessig1, K G Bramnik, H Ehrenberg
1Darmstadt University of Technology, Institute for Materials Science, Petersenstrasse 23, D-64287 Darmstadt, Germany.
Acta Crystallographica. Section B, Structural Science
|October 31, 2003
Abstract:
Four new crystalline structures within the Na-Fe-Mo-O system are reported: sodium tetrairon pentamolydate (1), NaFe(4)(MoO(4))(5), alpha-sodium diiron trimolybdate (2), alpha-NaFe(2)(MoO(4))(3), beta-sodium diiron trimolybdate (3), beta-NaFe(2)(MoO(4))(3), trisodium diiron trimolybdate (4), Na(3)Fe(2)(MoO(4))(3). All these structures belong to orthomolybdate class of compound and are described as networks of [FeO(6)] octahedra and [MoO(4)] tetrahedra. They are compared with each other and with other related structures.