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Ce2Ir5B2, a new structure type of ternary borides |
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| Authors: | P. Salamakha, O. Sologub, A. P. Gon alves,M. Almeida |
| Affiliation: | a Departamento de Química, Instituto Tecnológico e Nuclear, P-2686-953, Sacavém, Portugal b Institut für Anorganische Chemie, Universität Wien, Währingerstrasse 42, A-1090, Wien, Austria |
| Abstract: | The crystal structure of a new ternary boride Ce2Ir5B2, space group , a=5.477(2) Å, c=31.518(5) Å, Z=6, V=818.79 Å, was refined down to R=0.0484, wR2=0.1211 from single crystal X-ray diffraction data. This is the first representative of a new structure type of intermetallic compounds (an ordered variant of the binary Er2Co7 compound). The structure of Ce2Ir5B2 is the stacking variant of the MgCu2- and CeCo3B2-type slabs and belongs to the structural series with the general formula R2+nM4+3nX2n (n=2). |
| Keywords: | Rare earth compounds Transition metal compounds Crystal structure X-ray diffraction |
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