Ba 2 Cu 2 AlF 11 is trigonal: a = 7.301(1) A Ê , c = 14.145(2) A Ê , c = 120°, Z = 3. The crystal structure was solved in the space group P3 2 (n°145), from X-ray single crystal data using 2675 unique reflections (2476 with F/r(F) > 4). It consists in a complex tridimensional arrangement of copperfl
Preparation and Crystal Structure of Na7Ba14CaN6: A New Subnitride in the NaxBa14CaN6 Series
✍ Scribed by Grigori V. Vajenine; Arndt Simon
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 358 KB
- Volume
- 2001
- Category
- Article
- ISSN
- 1434-1948
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✦ Synopsis
The crystal structure of a new subnitride, Na 7 Ba 14 CaN 6 , could be solved and refined based on single crystal and powder X-ray diffraction data. The compound contains Ba 14 CaN 6 clusters, which are arranged in a Na matrix as in the other subnitrides of the Na x Ba 14 CaN 6 (x = 8, 14, 17, 21, 22) series. The Ba 14 CaN 6 clusters form a slightly distorted ccp arrange- [a]
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Ba 2 CuAlF 9 is monoclinic: a = 5.374(2) A Ê , b = 7.312(2) A Ê , c = 9.371(3) A Ê , b = 90.20(1)°, Z = 2, space group P2 1 /c (n°14). The crystal structure was solved from X-ray single crystal data using 1071 unique reflections (900 with F o /r(F o ) > 4, R factor = 0.075). It is built up from infi
Ba 2 CoBO 6 (B = Mo, W) perovskites have been prepared in polycrystalline form by thermal treatment, in air, of previously decomposed citrate precursors. These materials have been characterized by X-ray (XRD) and neutron powder diffraction (NPD) data and magnetization measurements. At room temperatu