Abstract
The noncentrosymmetric space group Pinline image3m but a pseudocentric cubic crystal structure were reported for the compound Ni5.20Sn8.7Zn4.16Cu1.04 [Larsson et al. (1994). Acta Cryst. C50, 9-12]. The recently described Ni2Sn2Zn shows a closely related structure, although it is centrosymmetric and contains additional voids which are partially occupied. Therefore, a new refinement of Ni5.20Sn8.7Zn4.16Cu1.04 based on the originally published structure factors was performed. The results indicate that the structure can indeed be described in the centrosymmetric space group Pminline imagem; no justification for the absence of the inversion centre could be found within the accuracy of the available data. In comparison with Ni2Sn2Zn, slight but significant differences were confirmed; consequently, the two structures are topologically related but not isotypic.
Original language | English |
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Pages (from-to) | 348-350 |
Number of pages | 3 |
Journal | Acta Crystallographica. Section C: Crystal Structure Communications |
Volume | 70 |
Issue number | 4 |
DOIs | |
Publication status | Published - Apr 2014 |
Austrian Fields of Science 2012
- 104003 Inorganic chemistry
- 104011 Materials chemistry
- 105113 Crystallography
Keywords
- rerefinement
- Ni5.20Sn8.7Zn4.16Cu1.04
- defect structure
- ABSOLUTE STRUCTURE
- FRIEDEL OPPOSITES
- REFLECTIONS