| Autor: |
J. Fuchs, N. B. Samarj, H.‐J. Lunk, M. B. Varfolomeev |
| Rok vydání: |
1993 |
| Předmět: |
|
| Zdroj: |
Journal of Alloys and Compounds. 201:261-265 |
| ISSN: |
0925-8388 |
| DOI: |
10.1016/0925-8388(93)90894-s |
| Popis: |
Single crystals of Se(ReO 4 ) 2 ·1.5H 2 O were prepared at room temperature from an aqueous solution of Sr(ReO 4 ) 2 . The structure has been studied by X-ray diffractometry and was refined to the R and R w values of 0.100 and 0.118 respectively. The salt crystallizes in monoclinic symmetry belonging to the space group P 2 1 / n (the lattice constants constants a = 13.207 A , b = 10.028 A , c = 13.538 A and β = 92.3°; Z = 8 ). The three-dimensional network is formed by ReO 4 tetrahedra and SrO 9 polyhedra connected by their corners. The water molecules are coordinated exclusively with Sr 2+ . Structure relations with other perrhenates are discussed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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