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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Ti3NbO8 by Materials Project

Ti3NbO8 is Rutile-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are six inequivalent Ti4+ sites. In the first Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with eight TiO6 octahedra and edges with two equivalent NbO6 octahedra. The corner-sharing octahedra tilt angles range from 48–50°. There are a spread of Ti–O bond distances ranging from 1.97–2.07 Å. In the second Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with eight TiO6 octahedra and edges with two equivalent NbO6 octahedra. The corner-sharing octahedra tilt angles range from 47–50°. There are a spread of Ti–O bond distances ranging from 1.96–2.06 Å. In the third Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with four TiO6 octahedra, corners with four NbO6 octahedra, and edges with two equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 47–50°. There are a spread of Ti–O bond distances ranging from 1.97–2.03 Å. In the fourth Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with four TiO6 octahedra, corners with four NbO6 octahedra, and edges with two equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–51°. There are a spread of Ti–O bond distances ranging from 1.93–2.03 Å. In the fifth Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with four TiO6 octahedra, corners with four NbO6 octahedra, and edges with two equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–50°. There are a spread of Ti–O bond distances ranging from 1.96–2.03 Å. In the sixth Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with four TiO6 octahedra, corners with four NbO6 octahedra, and edges with two equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 47–51°. There are a spread of Ti–O bond distances ranging from 1.94–2.02 Å. There are two inequivalent Nb4+ sites. In the first Nb4+ site, Nb4+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with eight TiO6 octahedra and edges with two equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–51°. There are a spread of Nb–O bond distances ranging from 2.00–2.06 Å. In the second Nb4+ site, Nb4+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with eight TiO6 octahedra and edges with two equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–51°. There are a spread of Nb–O bond distances ranging from 2.01–2.07 Å. There are sixteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti4+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti4+ atoms. In the fifth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the seventh O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the eighth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the ninth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the tenth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the eleventh O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the twelfth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the thirteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the fourteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti4+ atoms. In the fifteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti4+ atoms. In the sixteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti3NbO8 by Materials Project

Ti3NbO8 is beta Vanadium nitride-derived structured and crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with two equivalent NbO6 octahedra, an edgeedge with one NbO6 octahedra, and edges with four equivalent TiO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are a spread of Ti–O bond distances ranging from 1.96–2.05 Å. Nb4+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with six equivalent TiO6 octahedra and edges with three equivalent TiO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are three shorter (1.99 Å) and three longer (2.09 Å) Nb–O bond lengths. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Ti4+ and one Nb4+ atom. In the second O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two equivalent Ti4+ and one Nb4+ atom. In the third O2- site, O2- is bonded in a distorted T-shaped geometry to three equivalent Ti4+ atoms. In the fourth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to three equivalent Ti4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti3NbO8 by Materials Project

Ti3NbO8 is Rutile-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are six inequivalent Ti4+ sites. In the first Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with eight TiO6 octahedra and edges with two equivalent NbO6 octahedra. The corner-sharing octahedra tilt angles range from 48–50°. There are a spread of Ti–O bond distances ranging from 1.98–2.06 Å. In the second Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with eight TiO6 octahedra and edges with two equivalent NbO6 octahedra. The corner-sharing octahedra tilt angles range from 48–49°. There are a spread of Ti–O bond distances ranging from 1.97–2.06 Å. In the third Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with four TiO6 octahedra, corners with four NbO6 octahedra, and edges with two equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–50°. There are a spread of Ti–O bond distances ranging from 1.97–2.02 Å. In the fourth Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with four TiO6 octahedra, corners with four NbO6 octahedra, and edges with two equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–51°. There are a spread of Ti–O bond distances ranging from 1.93–2.02 Å. In the fifth Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with four TiO6 octahedra, corners with four NbO6 octahedra, and edges with two equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–50°. There are a spread of Ti–O bond distances ranging from 1.97–2.02 Å. In the sixth Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with four TiO6 octahedra, corners with four NbO6 octahedra, and edges with two equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–51°. There are a spread of Ti–O bond distances ranging from 1.94–2.02 Å. There are two inequivalent Nb4+ sites. In the first Nb4+ site, Nb4+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with eight TiO6 octahedra and edges with two equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–51°. There are a spread of Nb–O bond distances ranging from 2.00–2.06 Å. In the second Nb4+ site, Nb4+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with eight TiO6 octahedra and edges with two equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–51°. There are a spread of Nb–O bond distances ranging from 2.01–2.06 Å. There are sixteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti4+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti4+ atoms. In the fifth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the seventh O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the eighth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the ninth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the tenth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the eleventh O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the twelfth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the thirteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom. In the fourteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti4+ atoms. In the fifteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti4+ atoms. In the sixteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Nb4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti3NbO8 by Materials Project

Ti3NbO8 is Rutile-derived structured and crystallizes in the monoclinic P2/m space group. The structure is three-dimensional. there are two inequivalent Ti4+ sites. In the first Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with four equivalent TiO6 octahedra, corners with four equivalent NbO6 octahedra, and edges with two equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 46–50°. There are a spread of Ti–O bond distances ranging from 1.95–2.01 Å. In the second Ti4+ site, Ti4+ is bonded to six O2- atoms to form a mixture of corner and edge-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 49–50°. There is four shorter (1.97 Å) and two longer (2.02 Å) Ti–O bond length. Nb4+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with eight equivalent TiO6 octahedra and edges with two equivalent NbO6 octahedra. The corner-sharing octahedra tilt angles range from 46–48°. There are two shorter (2.04 Å) and four longer (2.06 Å) Nb–O bond lengths. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted T-shaped geometry to one Ti4+ and two equivalent Nb4+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti4+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti4+ atoms. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Ti4+ and one Nb4+ atom.

36 MATERIALS SCIENCE↗