A Barium Vanadium(v) Selenite Hydrate, Ba(VO2)2(SeO3)2·H2O: A Novel 3D Polymer of Cross-Linked Sheets with Embedded ···V-O-V··· 21 Helices

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© CSIRO 2014. The characterisation, by a single-crystal X-ray study at ∼150K, of brown acicular crystals of barium(ii) bis(dioxovanadium(v)) bis(selenite(iv)) monohydrate, BaSe2V2O10·H2O, obtained as a minor product of the synthesis of the previously reported 'Ba(VO)2(SeO3)2(HSeO3)2', is recorded. Crystals are monoclinic, P21/c, a≤10.803(2), b≤5.1126(8), c≤17.905(3)Å, β≤92.048(2)°, V≤988.3(3)Å3, 2456 independent diffractometer reflections refining to R1≤0.032, wR2≤0.084. A single BaV2Se2O11H2 formula unit, devoid of crystallographic symmetry, comprises the asymmetric unit of the structure, which is a three-dimensional polymer, with component sheets parallel to the crystallographic b axis, containing pentavalent vanadium atoms, one five-, the other six-coordinate, linked by selenite pyramids.
Original languageEnglish
Pages (from-to)1878-1881
JournalAustralian Journal of Chemistry
Issue number12
Publication statusPublished - 2014

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