Materials Data on Na3(WO3)4 by Materials Project
Na3(WO3)4 crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. there are three inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded to twelve O2- atoms to form NaO12 cuboctahedra that share corners with eight NaO12 cuboctahedra, faces with four NaO12 cuboctahedra, and faces with eight equivalent WO6 octahedra. There are a spread of Na–O bond distances ranging from 2.66–2.88 Å. In the second Na1+ site, Na1+ is bonded to twelve O2- atoms to form NaO12 cuboctahedra that share corners with eight NaO12 cuboctahedra, faces with four NaO12 cuboctahedra, and faces with eight equivalent WO6 octahedra. There are a spread of Na–O bond distances ranging from 2.69–2.90 Å. In the third Na1+ site, Na1+ is bonded to twelve O2- atoms to form NaO12 cuboctahedra that share corners with eight NaO12 cuboctahedra, faces with four NaO12 cuboctahedra, and faces with eight equivalent WO6 octahedra. There are a spread of Na–O bond distances ranging from 2.67–2.87 Å. W+5.25+ is bonded to six O2- atoms to form WO6 octahedra that share corners with six equivalent WO6 octahedra and faces with six NaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 3–10°. There is four shorter (1.97 Å) and two longer (1.98 Å) W–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to three Na1+ and two equivalent W+5.25+ atoms to form a mixture of distorted edge and corner-sharing ONa3W2 square pyramids. In the second O2- site, O2- is bonded in a 5-coordinate geometry to three Na1+ and two equivalent W+5.25+ atoms. In the third O2- site, O2- is bonded in a 5-coordinate geometry to three Na1+ and two equivalent W+5.25+ 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:
- 1207494
- Report Number(s):
- mp-38257
- Country of Publication:
- United States
- Language:
- English
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