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The crystal structure of Y 2 P 4 O 13 from X-ray powder diffraction data

✍ Scribed by Ivashkevich, L. S.; Lyakhov, A. S.; Selevich, A. F.; Ilieva, D.; Lesnikovich, A. I.

Book ID
118149549
Publisher
Oldenbourg Wissenschaftsverlag
Year
2002
Tongue
English
Weight
354 KB
Volume
217
Category
Article
ISSN
2194-4946

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✦ Synopsis

Abstract

The crystal structure of Y~2~P~4~O~13~ has been determined from X-ray powder diffraction data. Y~2~P~4~O~13~ crystallizes in the orthorhombic space group __C__222~1~ (No. 20) with a = 17.2817(7) Γ…, b = 6.9823(4) Γ…, c = 8.5391(3) Γ…, V = 1030.38(8) Γ…^3^, and Z = 4. The structure has been solved by direct methods using EXPO program and refined by FULLPROF package. The final R
~Bragg~ value was 9.1%. The tetraphosphate anion has the point group 2 symmetry. The yttrium atom is seven-coordinated forming strongly distorted octahedron with one bifurcated vertex. There are infinite chains of oxygen-bridged ittrium atoms running parallel to the b axis and linked together by the tetraphosphate anions with formation of three-dimensional network.

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