Calorimetric, spectroscopic, and structural studies of anhydrous zinc bromide
| Autor: | L. A. K. Staveley, A. Anderson, Mary Anne White, C. Chieh |
|---|---|
| Rok vydání: | 1984 |
| Předmět: |
Infrared
Chemistry Analytical chemistry General Physics and Astronomy Infrared spectroscopy Crystal structure Heat capacity symbols.namesake chemistry.chemical_compound Effective mass (solid-state physics) X-ray crystallography symbols Physical and Theoretical Chemistry Raman spectroscopy Zinc bromide |
| Zdroj: | The Journal of Chemical Physics. 80:1254-1258 |
| ISSN: | 1089-7690 0021-9606 |
| Popis: | Measurements of the heat capacity of ZnBr2 from T=10 to 300 K, as well as Raman, infrared, and x‐ray diffraction investigations reveal some very interesting features of this material. The unit cell (space group I41/acd) is large (Z=32), and composed of supertetrahadral Zn4Br10 subunits. The large unit cell and the large effective mass of the subunits, respectively, give rise to a rich vibrational spectrum and many low frequency modes. These have been used quantitatively to account for the unusually high heat capacity of ZnBr2 at low temperatures. |
| Databáze: | OpenAIRE |
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