正交晶系
结晶学
晶体结构
碲化物
群(周期表)
镍
单晶
六方晶系
空间组
对称(几何)
空格(标点符号)
材料科学
化学
X射线晶体学
物理
几何学
衍射
光学
数学
冶金
有机化学
哲学
语言学
作者
L. D. Gulay,Marek Daszkiewicz,A. Pietraszko
标识
DOI:10.1107/s1600536807050568
摘要
The crystal structure of the title compound, nickel telluride, with composition Ni 2.60 Te 2 , has been the subject of a previous investigation based on X-ray powder data, when a slightly different composition of Ni 2.58 Te 2 was determined [Gulay & Olekseyuk (2004). J. Alloys Compd , 376 , 131–138]. In contrast to the previous refinement in the space group Pmc 2 1 , the redetermination from single-crystal data reveals a centre of symmetry and the structure was refined in the space group Pnma with improved precision for the atomic coordinates and interatomic distances. The structure can be described as a c × a × (3 a ) 1/2 distorted orthorhombic variant of the hexagonal Ni 1.10 Se 0.16 Te 0.74 structure. All atoms are situated on mirror planes.
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