Rietveld refinement of the langbeinite-type phosphate K 2 Ni 0.5 Hf 1.5 (PO 4 ) 3 .

Autor: Zhou L; College of Physics, Jilin University 2699 Qianjin St., 130012 Changchun, People's Republic of China., Butenko DS; College of Physics, Jilin University 2699 Qianjin St., 130012 Changchun, People's Republic of China., Ogorodnyk IV; ShimUkraine LLC, 18, Chigorina Str., office 429, 01042 Kyiv, Ukraine., Klyui NI; V. Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, 41 Pr. Nauki, 03028 Kyiv, Ukraine., Zatovsky IV; College of Physics, Jilin University 2699 Qianjin St., 130012 Changchun, People's Republic of China.
Jazyk: angličtina
Zdroj: Acta crystallographica. Section E, Crystallographic communications [Acta Crystallogr E Crystallogr Commun] 2020 Sep 11; Vol. 76 (Pt 10), pp. 1634-1637. Date of Electronic Publication: 2020 Sep 11 (Print Publication: 2020).
DOI: 10.1107/S2056989020012062
Abstrakt: Polycrystalline potassium nickel(II) hafnium(IV) tris-(orthophosphate), a langbeinite-type phosphate, was synthesized by a solid-state method. The three-dimensional framework of the title compound is built up from two types of [ M O 6 ] octa-hedra [the M sites are occupied by Hf:Ni in ratios of 0.754 (8):0.246 (8) and 0.746 (8):0.254 (8), respectively] and [PO 4 ] tetra-hedra are connected via O vertices. The K + cations are located in two positions within large cavities of the framework, having coordination numbers of 9 and 12. The Hf, Ni and K sites lie on threefold rotation axes, while the P and O atoms are situated in general positions.
(© Zhou et al. 2020.)
Databáze: MEDLINE
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