A new anion-deficient fluorite-related superstructure of Bi28V8O62(Article)
- aInstitut für Mineralogie und Kristallographie-Geozentrum, Universität Wien, Althansstr. 14, Wien, A-1090, Austria
- bLaboratory for Crystallography, Faculty of Mining and Geology, University of Belgrade, Crossed D signušina 7, Belgrade, 11000, Serbia
Abstract
New hydrothermally synthesized Bi28V8O62was structurally characterized using single-crystal X-ray diffraction data. Bi28V8O62crystallizes in the novel type of defect fluorite structure related to the face-centered cubic δ-Bi2O3. It is monoclinic, s. g. P21/c, and the relation to the fluorite subcell is given as a~(3/2)aF+(3/2)cF; b~ -bF; c~2aF-4cF(F in subscript indicate the unit cell parameter of fluorite). Its structure is characterized by slabs of edge sharing OBi4tetrahedra surrounded by the OBi3triangles. As a part of these OBi3triangles, two positionally disordered Bi3+cations were observed in the marginal part of the slabs. The slabs are extending along b axis and are linked by inter-slab portion of the structure composed of VO4tetrahedra and BiO6-xcoordination polyhedra, where x is a number of vacant oxygen sites. Raman spectra verified the coordination environment of vanadium atoms in the structure. © 2014 Elsevier Inc.
Indexed keywords
| Engineering controlled terms: | Raman scattering |
|---|---|
| Engineering uncontrolled terms | Bismuth vanadatesFluorite structureSingle-crystal structure analysis |
| Engineering main heading: | Hydrothermal synthesis |
Funding details
| Funding sponsor | Funding number | Acronym |
|---|---|---|
| Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja | 45007,III45007 | MPNTR |
| Austrian Science Fund | V203-N19 | FWF |
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1
The authors gratefully acknowledge financial support from the Austrian Science Foundation (FWF) (Grant no. V203-N19 ) and the Ministry of Education, Science and Technological Development of the Republic of Serbia (Grant no. III45007 ). The authors are thankful to Prof. Dr. Lutz Nasdala for helping with the Raman analysis, Prof. Dr. Christian Lengauer for recording the powder XRD pattern and Dr. Aleksandar Pa\u010Devski for assisting during the SEM-EDS analysis.
- ISSN: 00224596
- CODEN: JSSCB
- Source Type: Journal
- Original language: English
- DOI: 10.1016/j.jssc.2014.09.010
- Document Type: Article
- Publisher: Academic Press Inc.
Dordevic, T.; Institut für Mineralogie und Kristallographie-Geozentrum, Universität Wien, Althansstr. 14, Wien, Austria
© Copyright 2014 Elsevier B.V., All rights reserved.
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