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Title: Materials Data on NaTi3AlO8 by Materials Project

Abstract

NaTi3AlO8 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. Na1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are two shorter (2.44 Å) and two longer (2.49 Å) Na–O bond lengths. There are three inequivalent Ti4+ sites. In the first Ti4+ site, Ti4+ is bonded to six O2- atoms to form distorted TiO6 octahedra that share a cornercorner with one AlO6 octahedra, corners with three TiO6 octahedra, an edgeedge with one AlO6 octahedra, and edges with three TiO6 octahedra. The corner-sharing octahedra tilt angles range from 17–28°. There are a spread of Ti–O bond distances ranging from 1.80–2.26 Å. In the second Ti4+ site, Ti4+ is bonded to six O2- atoms to form distorted TiO6 octahedra that share a cornercorner with one AlO6 octahedra, corners with three TiO6 octahedra, edges with two TiO6 octahedra, and edges with two equivalent AlO6 octahedra. The corner-sharing octahedra tilt angles range from 19–28°. There are a spread of Ti–O bond distances ranging from 1.85–2.17 Å. In the third Ti4+ site, Ti4+ is bonded to six O2- atoms to form distorted TiO6 octahedra that share corners with four TiO6 octahedra, edges with two equivalent AlO6 octahedra, and edges withmore » three TiO6 octahedra. The corner-sharing octahedra tilt angles range from 19–28°. There are a spread of Ti–O bond distances ranging from 1.81–2.18 Å. Al3+ is bonded to six O2- atoms to form AlO6 octahedra that share corners with two TiO6 octahedra, corners with two equivalent AlO6 octahedra, and edges with five TiO6 octahedra. The corner-sharing octahedra tilt angles range from 17–22°. There are a spread of Al–O bond distances ranging from 1.86–2.08 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two Ti4+ and one Al3+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to three Ti4+ atoms. In the third O2- site, O2- is bonded in a distorted see-saw-like geometry to two equivalent Na1+, one Ti4+, and one Al3+ atom. In the fourth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two equivalent Na1+ and two Ti4+ atoms. In the fifth O2- site, O2- is bonded to three Ti4+ and one Al3+ atom to form distorted corner-sharing OTi3Al trigonal pyramids. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to two Ti4+ and two equivalent Al3+ atoms. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Ti4+ and one Al3+ atom. In the eighth O2- site, O2- is bonded in a 3-coordinate geometry to three Ti4+ atoms.« less

Authors:
Publication Date:
Other Number(s):
mp-1220885
DOE Contract Number:  
AC02-05CH11231; EDCBEE
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Collaborations:
MIT; UC Berkeley; Duke; U Louvain
Subject:
36 MATERIALS SCIENCE
Keywords:
crystal structure; NaTi3AlO8; Al-Na-O-Ti
OSTI Identifier:
1695228
DOI:
https://doi.org/10.17188/1695228

Citation Formats

The Materials Project. Materials Data on NaTi3AlO8 by Materials Project. United States: N. p., 2019. Web. doi:10.17188/1695228.
The Materials Project. Materials Data on NaTi3AlO8 by Materials Project. United States. doi:https://doi.org/10.17188/1695228
The Materials Project. 2019. "Materials Data on NaTi3AlO8 by Materials Project". United States. doi:https://doi.org/10.17188/1695228. https://www.osti.gov/servlets/purl/1695228. Pub date:Sat Jan 12 00:00:00 EST 2019
@article{osti_1695228,
title = {Materials Data on NaTi3AlO8 by Materials Project},
author = {The Materials Project},
abstractNote = {NaTi3AlO8 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. Na1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are two shorter (2.44 Å) and two longer (2.49 Å) Na–O bond lengths. There are three inequivalent Ti4+ sites. In the first Ti4+ site, Ti4+ is bonded to six O2- atoms to form distorted TiO6 octahedra that share a cornercorner with one AlO6 octahedra, corners with three TiO6 octahedra, an edgeedge with one AlO6 octahedra, and edges with three TiO6 octahedra. The corner-sharing octahedra tilt angles range from 17–28°. There are a spread of Ti–O bond distances ranging from 1.80–2.26 Å. In the second Ti4+ site, Ti4+ is bonded to six O2- atoms to form distorted TiO6 octahedra that share a cornercorner with one AlO6 octahedra, corners with three TiO6 octahedra, edges with two TiO6 octahedra, and edges with two equivalent AlO6 octahedra. The corner-sharing octahedra tilt angles range from 19–28°. There are a spread of Ti–O bond distances ranging from 1.85–2.17 Å. In the third Ti4+ site, Ti4+ is bonded to six O2- atoms to form distorted TiO6 octahedra that share corners with four TiO6 octahedra, edges with two equivalent AlO6 octahedra, and edges with three TiO6 octahedra. The corner-sharing octahedra tilt angles range from 19–28°. There are a spread of Ti–O bond distances ranging from 1.81–2.18 Å. Al3+ is bonded to six O2- atoms to form AlO6 octahedra that share corners with two TiO6 octahedra, corners with two equivalent AlO6 octahedra, and edges with five TiO6 octahedra. The corner-sharing octahedra tilt angles range from 17–22°. There are a spread of Al–O bond distances ranging from 1.86–2.08 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two Ti4+ and one Al3+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to three Ti4+ atoms. In the third O2- site, O2- is bonded in a distorted see-saw-like geometry to two equivalent Na1+, one Ti4+, and one Al3+ atom. In the fourth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two equivalent Na1+ and two Ti4+ atoms. In the fifth O2- site, O2- is bonded to three Ti4+ and one Al3+ atom to form distorted corner-sharing OTi3Al trigonal pyramids. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to two Ti4+ and two equivalent Al3+ atoms. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Ti4+ and one Al3+ atom. In the eighth O2- site, O2- is bonded in a 3-coordinate geometry to three Ti4+ atoms.},
doi = {10.17188/1695228},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {1}
}