Materials Data on Ba2TeP2O9 by Materials Project
Ba2TeO(PO4)2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Ba–O bond distances ranging from 2.69–3.33 Å. In the second Ba2+ site, Ba2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ba–O bond distances ranging from 2.72–3.02 Å. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one TeO5 square pyramid. There are a spread of P–O bond distances ranging from 1.54–1.63 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent TeO5 square pyramids. There are a spread of P–O bond distances ranging from 1.52–1.61 Å. Te4+ is bonded to five O2- atoms to form distorted TeO5 square pyramids that share corners with three PO4 tetrahedra and an edgeedge with one TeO5 square pyramid. There are a spread of Te–O bond distances ranging from 1.94–2.22 Å. There are nine inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to three Ba2+ and one P5+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two Ba2+ and two equivalent Te4+ atoms. In the third O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Ba2+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to three Ba2+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to one Ba2+, one P5+, and one Te4+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to two Ba2+ and one P5+ atom. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to one Ba2+, one P5+, and one Te4+ atom. In the eighth O2- site, O2- is bonded in a 1-coordinate geometry to one Ba2+, one P5+, and one Te4+ atom. In the ninth O2- site, O2- is bonded in a distorted single-bond geometry to three Ba2+ and one P5+ atom.
- 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:
- 1271635
- Report Number(s):
- mp-560742
- Resource Relation:
- Related Information: https://materialsproject.org/citing
- Country of Publication:
- United States
- Language:
- English
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