Materials Data on Ga2HgO4 by Materials Project
HgGa2O4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Hg2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Hg–O bond distances ranging from 2.44–2.66 Å. There are two inequivalent Ga3+ sites. In the first Ga3+ site, Ga3+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing GaO6 octahedra. The corner-sharing octahedra tilt angles range from 49–55°. There are a spread of Ga–O bond distances ranging from 2.01–2.06 Å. In the second Ga3+ site, Ga3+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing GaO6 octahedra. The corner-sharing octahedra tilt angles range from 49–55°. There are a spread of Ga–O bond distances ranging from 2.00–2.08 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to two equivalent Hg2+ and three Ga3+ atoms. In the second O2- site, O2- is bonded in a 5-coordinate geometry to two equivalent Hg2+ and three equivalent Ga3+ atoms. In the third O2- site, O2- is bonded to two equivalent Hg2+ and three equivalent Ga3+ atoms to form distorted edge-sharing OGa3Hg2 square pyramids. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Hg2+ and three Ga3+ atoms.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Contributing Organization:
- MIT; UC Berkeley; Duke; U Louvain
- DOE Contract Number:
- AC02-05CH11231; EDCBEE
- OSTI ID:
- 1300972
- Report Number(s):
- mp-771978
- Resource Relation:
- Related Information: https://materialsproject.org/citing
- Country of Publication:
- United States
- Language:
- English
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