Single-crystal X-ray diffraction investigation of β-rhombohedral boron
نویسندگان
چکیده
منابع مشابه
Redetermination of the crystal structure of β-zinc molybdate from single-crystal X-ray diffraction data
The crystal structure of the β-polymorph of ZnMoO4 was re-determined on the basis of single-crystal X-ray diffraction data. In comparison with previous powder X-ray diffraction studies [Katikaneani & Arunachalam (2005 ▸). Eur. J. Inorg. Chem. pp. 3080-3087; Cavalcante et al. (2013 ▸). Polyhedron, 54, 13-25], all atoms were refined with anisotropic displacement parameters, leading to a higher pr...
متن کاملX-ray peak broadening analysis in LaMnO3+δ nano-particles with rhombohedral crystal structure
In this work, structural and magnetic properties of LaMnO3+δ compound prepared by citrate precursor method and annealed in presence of oxygen are investigated. The structural characterization of LaMnO3+δ by X-ray powder diffraction and using X’pert package and Fullprof program is evidence for a rhombohedral structure (R-3c space group) confirmed by FTIR measurement. The magnetic measurements sh...
متن کاملX-ray single crystal and powder diffraction: possibilities and applications
In this article the main possibilities of single crystal and powder diffraction analysis using conventional laboratory x-ray sources are introduced. Several examples of applications with different solid samples and in different fields of applications are shown illustrating the multidisciplinary capabilities of both techniques. Handbook of instrumental techniques from CCiTUB X-ray single crystal...
متن کاملCrystal-chemical investigation of kalsilite from San Venanzo, Italy, using single-crystal X-ray diffraction and Raman spectroscopy
Kalsilite, KAlSiO4, is an end-member of the ternary system, NaAlSiO4 (nepheline)-KAlSiO4-SiO2, which includes many important rock-forming minerals. Previous studies have provided several space groups for kalsilite: P6322 (Bannister and Hey, 1942), P63 (Perrotta et al., 1965), P63mc (Dollase and Freeborn, 1977), and P31c (Cellai et al., 1997). In this study, a natural kalsilite, (K0.92Na0.07)(Al...
متن کاملCrystal chemistry of HgBa2CaCu208+ and HgBa2Ca2Cu308+ Single-crystal X-ray diffraction results
Crystal structures of HgBa2CaCu206 + ~ (Hg1212 ) and HgBa2Ca2Cu308 + a (Hg1223 ) have been determined on single crystals at room temperature conditions by X-ray diffraction techniques. Both tetragonal specimens are isomorphous with compounds in the T1-Ba-Ca-Cu-O system. We observe excess oxygen in both samples on two sites near the z=0 plane: at (1⁄200) and close to (1⁄2, 0.4, 0) but no oxygen ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations and Advances
سال: 2017
ISSN: 2053-2733
DOI: 10.1107/s2053273317089057