Title: Crystal structures of the new pseudo-isotypic compounds NaFe(SeO3)2 and BaCo(SeO3)2
Abstract: The new compounds NaFe(SeO3)2 and BaCo(SeO3)2 have been synthesized under low hydrothermal conditions. Their crystal structures have been determined using single-crystal X-ray diffraction data and refined to R1 = 0.039, 0.020 and wR2 = 0.075, 0.040 [space group Pnma, Z = 4; NaFe(SeO3)2: a = 12.553(6), b = 5.349(2), c = 7.899(3) Å, V = 530.4 Å3; BaCo(SeO3)2: a = 15.115(2), b = 5.481(1), c = 7.209(2) Å, V = 597.2 Å3]. NaFe(SeO3)2, which is isotypic with KFe(SeO3)2, is built up by NaO8 polyhedra, FeO6 octahedra and two types of trigonal SeO3 pyramids to a framework structure. The atomic arrangement in BaCo(SeO3)2 is pseudo-isotypic to NaFe(SeO3)2, major differences are observed only in the orientation of half of the selenite groups.
Publication Year: 1996
Publication Date: 1996-06-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 18
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