Materials Data on Na2TiF6 by Materials Project
Na2TiF6 is zeta iron carbide-derived structured and crystallizes in the monoclinic C2 space group. The structure is three-dimensional. there are four inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded to six F1- atoms to form NaF6 octahedra that share corners with four equivalent TiF6 octahedra, corners with six NaF6 octahedra, and an edgeedge with one TiF6 octahedra. The corner-sharing octahedra tilt angles range from 45–60°. There are a spread of Na–F bond distances ranging from 2.34–2.47 Å. In the second Na1+ site, Na1+ is bonded to six F1- atoms to form distorted NaF6 octahedra that share corners with two equivalent TiF6 octahedra, corners with six NaF6 octahedra, and edges with two equivalent TiF6 octahedra. The corner-sharing octahedra tilt angles range from 50–60°. There are a spread of Na–F bond distances ranging from 2.25–2.37 Å. In the third Na1+ site, Na1+ is bonded to six F1- atoms to form distorted NaF6 octahedra that share corners with two equivalent TiF6 octahedra, corners with six NaF6 octahedra, and edges with two equivalent TiF6 octahedra. The corner-sharing octahedra tilt angles range from 50–60°. There are a spread of Na–F bond distances ranging from 2.26–2.37 Å. In the fourth Na1+ site, Na1+ is bonded to six F1- atoms to form NaF6 octahedra that share corners with four equivalent TiF6 octahedra, corners with six NaF6 octahedra, and an edgeedge with one TiF6 octahedra. The corner-sharing octahedra tilt angles range from 46–60°. There are a spread of Na–F bond distances ranging from 2.34–2.47 Å. There are two inequivalent Ti4+ sites. In the first Ti4+ site, Ti4+ is bonded to six F1- atoms to form TiF6 octahedra that share corners with six NaF6 octahedra and edges with three NaF6 octahedra. The corner-sharing octahedra tilt angles range from 45–46°. All Ti–F bond lengths are 1.90 Å. In the second Ti4+ site, Ti4+ is bonded to six F1- atoms to form TiF6 octahedra that share corners with six NaF6 octahedra and edges with three NaF6 octahedra. The corner-sharing octahedral tilt angles are 50°. All Ti–F bond lengths are 1.89 Å. There are nine inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted trigonal planar geometry to two Na1+ and one Ti4+ atom. In the second F1- site, F1- is bonded in a distorted trigonal planar geometry to two Na1+ and one Ti4+ atom. In the third F1- site, F1- is bonded in a distorted trigonal planar geometry to two Na1+ and one Ti4+ atom. In the fourth F1- site, F1- is bonded in a distorted trigonal planar geometry to two Na1+ and one Ti4+ atom. In the fifth F1- site, F1- is bonded in a distorted trigonal planar geometry to two Na1+ and one Ti4+ atom. In the sixth F1- site, F1- is bonded in a distorted trigonal planar geometry to two Na1+ and one Ti4+ atom. In the seventh F1- site, F1- is bonded in a distorted trigonal planar geometry to two Na1+ and one Ti4+ atom. In the eighth F1- site, F1- is bonded in a distorted trigonal planar geometry to two Na1+ and one Ti4+ atom. In the ninth F1- site, F1- is bonded in a distorted trigonal planar geometry to two Na1+ and one Ti4+ 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:
- 1269124
- Report Number(s):
- mp-556024
- Resource Relation:
- Related Information: https://materialsproject.org/citing
- Country of Publication:
- United States
- Language:
- English
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