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Preparation and Crystal Structure of K2YNb5O15−δ
✍ Scribed by N. Kumada; N. Kinomura
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 307 KB
- Volume
- 123
- Category
- Article
- ISSN
- 0022-4596
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📜 SIMILAR VOLUMES
The crystal structure of -Na 2 Si 2 O 5 has been solved and re-5ned to an R index of 0.053 for 933 independent re6ections. The compound is monoclinic with space group P2 1 /n (a ؍ 8.393(2) A s , b ؍ 12.083(3) A s , c ؍ 4.843(1) A s , ؍ 90.37(3)3, V ؍ 491.1(1) A s 3 , M r ؍ 182.15 u, Z ؍
K 2 NiF 4 type compounds Eu 2؊x Sr x NiO 4؉ (0.54x41.2) have been prepared by a citric acid complex decomposition method. Rietveld refinement of the powder X-ray diffraction data showed that there was a crystal system transformation from orthorhombic Fmmm to tetragonal I4/mmm at around x ؍ 0.6-0.7