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X-ray powder diffraction study of LiCrP2O7

โœ Scribed by Ivashkevich, Ludmila S. ;Selevich, Kirill A. ;Lesnikovich, Anatoly I. ;Selevich, Anatoly F.

Publisher
International Union of Crystallography
Year
2007
Tongue
English
Weight
406 KB
Volume
63
Category
Article
ISSN
1600-5368

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โœฆ Synopsis

The monoclinic crystal structure of lithium chromium(III) diphosphate, LiCrP~2~O~7~, isotypic with other members of the series Li__M__
^III^P~2~O~7~ (M
^III^ = Mn, Fe, V, Mo, Sc and In), was refined from laboratory X-ray powder diffraction data using the Rietveld method. The Cr^3+^ cation is bonded to six O atoms from five diphosphate anions to form a distorted octahedron. Links between the bent diphosphate anions and the Cr^3+^ cations result in a three-dimensional network, with tunnels filled by the Li^+^ cations in a considerably distorted tetrahedral environment of O atoms.

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The crystal structure of monoclinic thallium(III) hydrogendiphosphate, TlHP 2 O 7 , has been solved from laboratory X-ray powder diffraction data and refined by the Rietveld method. All atoms occupy general positions. The Tl III ions have a distorted octahedral coordination environment of O atoms fr