The crystal structure of Hg 7Sb 4Br 6
Abstract
The crystal structure of Hg 7Sb 4Br 6 (previously reported as HgSbBr) has been solved by the X-ray single crystal technique. Hg 7Sb 4Br 6 crystallizes in the cubic system, space group Pa3, Z = 4, with cell dimensions a = 12.9940(9)Å. The structure consists of the three-dimensional positively charged [Hg 6Sb 4] 4+ shell, and octahedral [HgBr 6] 4- anions. The antimony atoms in the shell are bound into Sb 4-2 dumbells with short SbSb distance of 2.77 Å. The possible migration of Hg 2+ ions along the fourfold axis is suggested.
- Publication:
-
Journal of Solid State Chemistry France
- Pub Date:
- May 1992
- DOI:
- 10.1016/0022-4596(92)90078-A
- Bibcode:
- 1992JSSCh..98..133S