Materials Data on NbBi(TeO4)2 by Materials Project
BiNbTe2O8 crystallizes in the orthorhombic Pbca space group. The structure is three-dimensional. Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 10–22°. There are a spread of Nb–O bond distances ranging from 1.83–2.31 Å. Bi3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Bi–O bond distances ranging from 2.26–2.77 Å. There are two inequivalent Te4+ sites. In the first Te4+ site, Te4+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Te–O bond distances ranging from 1.93–2.29 Å. In the second Te4+ site, Te4+ is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of Te–O bond distances ranging from 1.89–1.92 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Bi3+ and one Te4+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one Nb5+ and one Te4+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Bi3+ and one Te4+ atom. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to one Nb5+ and one Te4+ atom. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to one Bi3+ and two equivalent Te4+ atoms. In the sixth O2- site, O2- is bonded in a 1-coordinate geometry to three equivalent Bi3+ and one Te4+ atom. In the seventh O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent Nb5+ atoms. In the eighth O2- site, O2- is bonded in a distorted linear geometry to two equivalent Nb5+ atoms.
- Research Organization:
- LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Contributing Organization:
- The Materials Project; MIT; UC Berkeley; Duke; U Louvain
- DOE Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1271101
- Report Number(s):
- mp-559861
- Country of Publication:
- United States
- Language:
- English
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