Materials Data on La2HgO4 by Materials Project
La2HgO4 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent La3+ sites. In the first La3+ site, La3+ is bonded to seven O2- atoms to form distorted edge-sharing LaO7 hexagonal pyramids. There are a spread of La–O bond distances ranging from 2.39–2.60 Å. In the second La3+ site, La3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of La–O bond distances ranging from 2.38–2.65 Å. Hg2+ is bonded in a distorted linear geometry to four O2- atoms. There are two shorter (2.02 Å) and two longer (3.04 Å) Hg–O bond lengths. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 6-coordinate geometry to four La3+ and two equivalent Hg2+ atoms. In the second O2- site, O2- is bonded to three equivalent La3+ and one Hg2+ atom to form a mixture of distorted edge and corner-sharing OLa3Hg tetrahedra. In the third O2- site, O2- is bonded to three La3+ and one Hg2+ atom to form distorted OLa3Hg tetrahedra that share corners with eight OLa3Hg tetrahedra and edges with two equivalent OLa4 tetrahedra. In the fourth O2- site, O2- is bonded to four La3+ atoms to form a mixture of edge and corner-sharing OLa4 tetrahedra.
- 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:
- 1306198
- Report Number(s):
- mp-779287
- Resource Relation:
- Related Information: https://materialsproject.org/citing
- Country of Publication:
- United States
- Language:
- English
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