Materials Data on TmTaO4 by Materials Project
TmTaO4 crystallizes in the orthorhombic Cmc2_1 space group. The structure is three-dimensional. Tm3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Tm–O bond distances ranging from 2.20–2.54 Å. Ta5+ is bonded to six O2- atoms to form corner-sharing TaO6 octahedra. The corner-sharing octahedra tilt angles range from 23–33°. There are a spread of Ta–O bond distances ranging from 1.88–2.15 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Tm3+ and two equivalent Ta5+ atoms. In the second O2- site, O2- is bonded to three equivalent Tm3+ and one Ta5+ atom to form corner-sharing OTm3Ta tetrahedra. In the third O2- site, O2- is bonded in a 4-coordinate geometry to three equivalent Tm3+ and one Ta5+ atom. In the fourth O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent Ta5+ 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:
- 1298250
- Report Number(s):
- mp-768176
- Resource Relation:
- Related Information: https://materialsproject.org/citing
- Country of Publication:
- United States
- Language:
- English
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