| Autor: |
Karray, R., van der Lee, A., Jarraya, S., Ben Salah, A., Kabadou, A. |
| Zdroj: |
Arabian Journal of Chemistry; Apr2014, Vol. 7 Issue 2, p177-180, 4p |
| Abstrakt: |
The crystal structure of lithium–ammonium hexabromotellurate [(NH4)0.63Li0.37]2TeBr6, has been determined by X-ray single crystal analysis at room temperature. The space group is Fm m, with a =10.7200(12)Å. Differential scanning calorimetry reveals three anomalies at 195, 395 and 498K. Below 195K the phase transition leads to a tetragonally distorted structure. This low temperature phase shows an anti-ferrorotative displacement of octahedra with a tilt angle 6°. The title compound has an anti-fluorite-type arrangement of and octahedral anions. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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