Materials Data on Na2SnBAsO7 by Materials Project
Na2BSnAsO7 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. Na1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Na–O bond distances ranging from 2.18–2.77 Å. B3+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of B–O bond distances ranging from 1.32–1.45 Å. Sn4+ is bonded to six O2- atoms to form SnO6 octahedra that share corners with four equivalent AsO4 tetrahedra. There are a spread of Sn–O bond distances ranging from 2.06–2.13 Å. As5+ is bonded to four O2- atoms to form AsO4 tetrahedra that share corners with four equivalent SnO6 octahedra. The corner-sharing octahedra tilt angles range from 42–51°. There are a spread of As–O bond distances ranging from 1.71–1.75 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Na1+ and one B3+ atom. In the second O2- site, O2- is bonded in a distorted trigonal pyramidal geometry to two equivalent Na1+, one B3+, and one Sn4+ atom. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Na1+, one B3+, and one Sn4+ atom. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to one Na1+, one Sn4+, and one As5+ atom. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Na1+, one Sn4+, and one As5+ atom. In the sixth O2- site, O2- is bonded in a bent 120 degrees geometry to one Sn4+ and one As5+ 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:
- 1301386
- Report Number(s):
- mp-772625
- Resource Relation:
- Related Information: https://materialsproject.org/citing
- Country of Publication:
- United States
- Language:
- English
Similar Records
Materials Data on Na2AlB(As2O7)2 by Materials Project
Materials Data on LiSnAsCO7 by Materials Project