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Crystal structures of RPt3−xSi1−y(R=Y, Tb, Dy, Ho, Er, Tm, Yb) studied by single crystal X-ray diffraction |
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| Authors: | Alexander Gribanov Andriy Grytsiv Yurii Seropegin |
| Institution: | a Institute of Physical Chemistry, University of Vienna, Währingerstrasse 42, A-1090 Wien, Austria b Chemistry Department of the Moscow State University, Leninskie Gory, GSP-1, 119991 Moscow, Russia c Institute of Mineralogy and Crystallography, University of Vienna, Althanstrasse 14, A-1090 Wien, Austria |
| Abstract: | The crystal structures of ternary compounds RPt3−xSi1−y(R=Y, Tb, Dy, Ho, Er, Tm, Yb) have been elucidated from X-ray single crystal CCD data. All compounds are isotypic and crystallize in the tetragonal space group P4/mbm. The general formula RPt3−xSi1−y arises from defects: x≈0.20, y≈0.14. The crystal structure of RPt3−xSi1−y can be considered as a packing of four types of building blocks which derive from the CePt3B-type unit cell by various degrees of distortion and Pt, Si-defects. |
| Keywords: | Ternary silicides RPt3&minus xSi1&minus y Single crystal X-ray powder diffraction |
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