Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “O-Ti”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 55 records · Page 3
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Ti10O11 by Materials Project

Ti10O11 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are eleven inequivalent Ti+2.20+ sites. In the first Ti+2.20+ site, Ti+2.20+ 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 2–8°. There are a spread of Ti–O bond distances ranging from 2.05–2.12 Å. In the second Ti+2.20+ site, Ti+2.20+ 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 0–12°. There are a spread of Ti–O bond distances ranging from 2.09–2.15 Å. In the third Ti+2.20+ site, Ti+2.20+ 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 2–18°. There are a spread of Ti–O bond distances ranging from 2.06–2.20 Å. In the fourth Ti+2.20+ site, Ti+2.20+ 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 1–18°. There are a spread of Ti–O bond distances ranging from 2.08–2.30 Å. In the fifth Ti+2.20+ site, Ti+2.20+ is bonded to six O2- atoms to form a mixture of distorted corner and edge-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 0–21°. There are a spread of Ti–O bond distances ranging from 2.07–2.33 Å. In the sixth Ti+2.20+ site, Ti+2.20+ 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 2–21°. There are a spread of Ti–O bond distances ranging from 2.04–2.29 Å. In the seventh Ti+2.20+ site, Ti+2.20+ 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 0–18°. There are a spread of Ti–O bond distances ranging from 2.06–2.24 Å. In the eighth Ti+2.20+ site, Ti+2.20+ 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 0–18°. There are a spread of Ti–O bond distances ranging from 2.07–2.23 Å. In the ninth Ti+2.20+ site, Ti+2.20+ 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 5–23°. There are a spread of Ti–O bond distances ranging from 2.08–2.21 Å. In the tenth Ti+2.20+ site, Ti+2.20+ 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 4–23°. There are a spread of Ti–O bond distances ranging from 2.06–2.17 Å. In the eleventh Ti+2.20+ site, Ti+2.20+ 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 2–18°. There are a spread of Ti–O bond distances ranging from 2.11–2.20 Å. There are eleven inequivalent O2- sites. In the first O2- site, O2- is bonded to six Ti+2.20+ atoms to form distorted OTi6 octahedra that share corners with two OTi6 octahedra, corners with four OTi5 square pyramids, edges with six OTi6 octahedra, and edges with six OTi5 square pyramids. The corner-sharing octahedra tilt angles range from 14–16°. In the second O2- site, O2- is bonded to six Ti+2.20+ atoms to form OTi6 octahedra that share corners with two OTi6 octahedra, corners with four OTi5 square pyramids, edges with five OTi6 octahedra, and edges with seven OTi5 square pyramids. The corner-sharing octahedra tilt angles range from 6–22°. In the third O2- site, O2- is bonded to five Ti+2.20+ atoms to form OTi5 square pyramids that share a cornercorner with one OTi6 octahedra, corners with eight OTi5 square pyramids, edges with six OTi6 octahedra, and edges with two OTi5 square pyramids. The corner-sharing octahedral tilt angles are 17°. In the fourth O2- site, O2- is bonded to five Ti+2.20+ atoms to form OTi5 square pyramids that share corners with two OTi6 octahedra, corners with seven OTi5 square pyramids, edges with six OTi6 octahedra, and edges with two OTi5 square pyramids. The corner-sharing octahedra tilt angles range from 15–16°. In the fifth O2- site, O2- is bonded to six Ti+2.20+ atoms to form OTi6 octahedra that share corners with three OTi6 octahedra, corners with three OTi5 square pyramids, edges with six OTi6 octahedra, and edges with six OTi5 square pyramids. The corner-sharing octahedra tilt angles range from 5–16°. In the sixth O2- site, O2- is bonded to five Ti+2.20+ atoms to form OTi5 square pyramids that share corners with two OTi6 octahedra, corners with seven OTi5 square pyramids, edges with six OTi6 octahedra, and edges with two OTi5 square pyramids. The corner-sharing octahedra tilt angles range from 3–19°. In the seventh O2- site, O2- is bonded to six Ti+2.20+ atoms to form OTi6 octahedra that share corners with four OTi6 octahedra, corners with two OTi5 square pyramids, edges with four OTi6 octahedra, and edges with eight OTi5 square pyramids. The corner-sharing octahedra tilt angles range from 0–22°. In the eighth O2- site, O2- is bonded to five Ti+2.20+ atoms to form OTi5 square pyramids that share corners with three OTi6 octahedra, corners with six OTi5 square pyramids, edges with four OTi6 octahedra, and edges with four OTi5 square pyramids. The corner-sharing octahedra tilt angles range from 6–12°. In the ninth O2- site, O2- is bonded to five Ti+2.20+ atoms to form OTi5 square pyramids that share corners with three OTi6 octahedra, corners with six OTi5 square pyramids, edges with six OTi6 octahedra, and edges with two OTi5 square pyramids. The corner-sharing octahedra tilt angles range from 7–16°. In the tenth O2- site, O2- is bonded to five Ti+2.20+ atoms to form OTi5 square pyramids that share corners with three OTi6 octahedra, corners with six OTi5 square pyramids, edges with six OTi6 octahedra, and edges with two OTi5 square pyramids. The corner-sharing octahedra tilt angles range from 11–16°. In the eleventh O2- site, O2- is bonded to six Ti+2.20+ atoms to form OTi6 octahedra that share corners with five OTi6 octahedra, a cornercorner with one OTi5 square pyramid, edges with five OTi6 octahedra, and edges with seven OTi5 square pyramids. The corner-sharing octahedra tilt angles range from 0–15°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TiO by Materials Project

TiO crystallizes in the tetragonal I4/mmm space group. The structure is two-dimensional and consists of six TiO sheets oriented in the (0, 0, 1) direction. In two of the TiO sheets, there are two inequivalent Ti2+ sites. In the first Ti2+ site, Ti2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are four shorter (2.09 Å) and one longer (2.32 Å) Ti–O bond lengths. In the second Ti2+ site, Ti2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ti–O bond distances ranging from 2.07–2.77 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to six Ti2+ atoms. In the second O2- site, O2- is bonded in a 5-coordinate geometry to five Ti2+ atoms. In four of the TiO sheets, Ti2+ is bonded in a distorted square co-planar geometry to four equivalent O2- atoms. All Ti–O bond lengths are 2.07 Å. O2- is bonded in a 4-coordinate geometry to four equivalent Ti2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti5O9 by Materials Project

Ti5O9 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are six inequivalent Ti+3.60+ sites. In the first Ti+3.60+ site, Ti+3.60+ is bonded to six O2- atoms to form a mixture of distorted face, edge, and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 43–55°. There are a spread of Ti–O bond distances ranging from 1.87–2.18 Å. In the second Ti+3.60+ site, Ti+3.60+ is bonded to six O2- atoms to form a mixture of distorted face, edge, and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 44–55°. There are a spread of Ti–O bond distances ranging from 1.86–2.18 Å. In the third Ti+3.60+ site, Ti+3.60+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 44–61°. There are a spread of Ti–O bond distances ranging from 1.92–2.12 Å. In the fourth Ti+3.60+ site, Ti+3.60+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 43–61°. There are a spread of Ti–O bond distances ranging from 1.92–2.13 Å. In the fifth Ti+3.60+ site, Ti+3.60+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 44–51°. There are two shorter (1.99 Å) and four longer (2.02 Å) Ti–O bond lengths. In the sixth Ti+3.60+ site, Ti+3.60+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 49–54°. There are a spread of Ti–O bond distances ranging from 1.98–2.04 Å. There are nine inequivalent O2- sites. In the first O2- site, O2- is bonded to four Ti+3.60+ atoms to form a mixture of distorted edge and corner-sharing OTi4 trigonal pyramids. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.60+ atoms. In the third O2- site, O2- is bonded to four Ti+3.60+ atoms to form a mixture of distorted edge and corner-sharing OTi4 trigonal pyramids. In the fourth O2- site, O2- is bonded to four Ti+3.60+ atoms to form distorted edge-sharing OTi4 trigonal pyramids. In the fifth O2- site, O2- is bonded in a distorted T-shaped geometry to three Ti+3.60+ atoms. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.60+ atoms. In the seventh O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.60+ atoms. In the eighth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.60+ atoms. In the ninth O2- site, O2- is bonded in a trigonal planar geometry to three Ti+3.60+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti8O13 by Materials Project

Ti8O13 crystallizes in the trigonal R-3 space group. The structure is three-dimensional. there are two inequivalent Ti+3.25+ sites. In the first Ti+3.25+ site, Ti+3.25+ 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 0–17°. There are a spread of Ti–O bond distances ranging from 1.96–2.11 Å. In the second Ti+3.25+ site, Ti+3.25+ is bonded to six O2- atoms to form a mixture of distorted corner and edge-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles are 14°. There are three shorter (1.88 Å) and three longer (2.14 Å) Ti–O bond lengths. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in an octahedral geometry to six equivalent Ti+3.25+ atoms. In the second O2- site, O2- is bonded in a T-shaped geometry to three Ti+3.25+ atoms. In the third O2- site, O2- is bonded in a see-saw-like geometry to four Ti+3.25+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti10O13 by Materials Project

Ti10O13 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are five inequivalent Ti+2.60+ sites. In the first Ti+2.60+ site, Ti+2.60+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 2–13°. There are a spread of Ti–O bond distances ranging from 2.03–2.15 Å. In the second Ti+2.60+ site, Ti+2.60+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 0–12°. There are a spread of Ti–O bond distances ranging from 2.00–2.13 Å. In the third Ti+2.60+ site, Ti+2.60+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 0–7°. There are a spread of Ti–O bond distances ranging from 2.06–2.11 Å. In the fourth Ti+2.60+ site, Ti+2.60+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 0–7°. There are a spread of Ti–O bond distances ranging from 2.05–2.09 Å. In the fifth Ti+2.60+ site, Ti+2.60+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 0–6°. There are a spread of Ti–O bond distances ranging from 2.06–2.09 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded to five Ti+2.60+ atoms to form a mixture of edge and corner-sharing OTi5 square pyramids. In the second O2- site, O2- is bonded in a square co-planar geometry to four Ti+2.60+ atoms. In the third O2- site, O2- is bonded to five Ti+2.60+ atoms to form a mixture of edge and corner-sharing OTi5 square pyramids. In the fourth O2- site, O2- is bonded in a square co-planar geometry to four Ti+2.60+ atoms. In the fifth O2- site, O2- is bonded to five Ti+2.60+ atoms to form a mixture of edge and corner-sharing OTi5 square pyramids. In the sixth O2- site, O2- is bonded to five Ti+2.60+ atoms to form a mixture of edge and corner-sharing OTi5 square pyramids. In the seventh O2- site, O2- is bonded in a square co-planar geometry to four Ti+2.60+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TiO by Materials Project

TiO is Tungsten Carbide-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Ti2+ is bonded to six equivalent O2- atoms to form a mixture of distorted corner and edge-sharing TiO6 pentagonal pyramids. All Ti–O bond lengths are 2.16 Å. O2- is bonded to six equivalent Ti2+ atoms to form a mixture of corner, edge, and face-sharing OTi6 octahedra. The corner-sharing octahedral tilt angles are 45°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TiO2 by Materials Project

TiO2 crystallizes in the orthorhombic P2_12_12_1 space group. The structure is three-dimensional. Ti4+ is bonded to five O2- atoms to form a mixture of distorted edge and corner-sharing TiO5 trigonal bipyramids. There are a spread of Ti–O bond distances ranging from 1.78–2.05 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to three equivalent Ti4+ atoms. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent Ti4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TiO2 by Materials Project

TiO2 is beta Vanadium nitride-like structured and crystallizes in the orthorhombic Pnma 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 a mixture of corner and edge-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles are 47°. There are a spread of Ti–O bond distances ranging from 1.89–2.13 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 47–52°. There are a spread of Ti–O bond distances ranging from 1.89–2.15 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to three equivalent Ti4+ atoms. 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 3-coordinate geometry to three Ti4+ atoms. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to three equivalent Ti4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TiO by Materials Project

TiO is Tungsten Carbide structured and crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Ti2+ is bonded to six equivalent O2- atoms to form a mixture of distorted corner, edge, and face-sharing TiO6 pentagonal pyramids. All Ti–O bond lengths are 2.16 Å. O2- is bonded to six equivalent Ti2+ atoms to form a mixture of distorted corner, edge, and face-sharing OTi6 pentagonal pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TiO by Materials Project

TiO crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Ti2+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Ti–O bond lengths are 2.04 Å. O2- is bonded in a square co-planar geometry to four equivalent Ti2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti3O4 by Materials Project

Ti3O4 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. there are two inequivalent Ti+2.67+ sites. In the first Ti+2.67+ site, Ti+2.67+ is bonded to six O2- atoms to form edge-sharing TiO6 octahedra. There are four shorter (2.05 Å) and two longer (2.11 Å) Ti–O bond lengths. In the second Ti+2.67+ site, Ti+2.67+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 3–5°. There are two shorter (2.05 Å) and four longer (2.11 Å) Ti–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+2.67+ atoms. In the second O2- site, O2- is bonded to five Ti+2.67+ atoms to form a mixture of edge and corner-sharing OTi5 square pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TiO2 by Materials Project

TiO2 is beta Vanadium nitride-like structured and crystallizes in the hexagonal P6_3mc 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 a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are a spread of Ti–O bond distances ranging from 1.96–2.00 Å. In the second Ti4+ site, Ti4+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There is three shorter (1.96 Å) and three longer (2.01 Å) Ti–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti4+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to three Ti4+ atoms. In the third O2- site, O2- is bonded in a 3-coordinate 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 TiO2 by Materials Project

TiO2 is beta Vanadium nitride-like structured and crystallizes in the orthorhombic Pnma 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 a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–51°. There are a spread of Ti–O bond distances ranging from 1.92–2.06 Å. In the second Ti4+ site, Ti4+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–51°. There are a spread of Ti–O bond distances ranging from 1.92–2.06 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to three equivalent Ti4+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to three equivalent 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 three Ti4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti11O14 by Materials Project

Ti11O14 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eleven inequivalent Ti+2.55+ sites. In the first Ti+2.55+ site, Ti+2.55+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 2–9°. There are a spread of Ti–O bond distances ranging from 2.08–2.15 Å. In the second Ti+2.55+ site, Ti+2.55+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 2–7°. There are a spread of Ti–O bond distances ranging from 2.07–2.11 Å. In the third Ti+2.55+ site, Ti+2.55+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 2–5°. There are a spread of Ti–O bond distances ranging from 2.05–2.10 Å. In the fourth Ti+2.55+ site, Ti+2.55+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 2–9°. There are a spread of Ti–O bond distances ranging from 2.01–2.18 Å. In the fifth Ti+2.55+ site, Ti+2.55+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 3–7°. There are a spread of Ti–O bond distances ranging from 2.05–2.14 Å. In the sixth Ti+2.55+ site, Ti+2.55+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 2–6°. There are a spread of Ti–O bond distances ranging from 2.01–2.16 Å. In the seventh Ti+2.55+ site, Ti+2.55+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 2–4°. There are a spread of Ti–O bond distances ranging from 2.05–2.11 Å. In the eighth Ti+2.55+ site, Ti+2.55+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 4–6°. There are a spread of Ti–O bond distances ranging from 2.06–2.13 Å. In the ninth Ti+2.55+ site, Ti+2.55+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 2–7°. There are a spread of Ti–O bond distances ranging from 2.07–2.11 Å. In the tenth Ti+2.55+ site, Ti+2.55+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 2–6°. There are a spread of Ti–O bond distances ranging from 2.06–2.12 Å. In the eleventh Ti+2.55+ site, Ti+2.55+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 3–5°. There are a spread of Ti–O bond distances ranging from 2.05–2.15 Å. There are fourteen inequivalent O2- sites. In the first O2- site, O2- is bonded to five Ti+2.55+ atoms to form a mixture of edge and corner-sharing OTi5 square pyramids. In the second O2- site, O2- is bonded to five Ti+2.55+ atoms to form a mixture of edge and corner-sharing OTi5 square pyramids. In the third O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+2.55+ atoms. In the fourth O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+2.55+ atoms. In the fifth O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+2.55+ atoms. In the sixth O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+2.55+ atoms. In the seventh O2- site, O2- is bonded to five Ti+2.55+ atoms to form a mixture of edge and corner-sharing OTi5 square pyramids. In the eighth O2- site, O2- is bonded to five Ti+2.55+ atoms to form a mixture of edge and corner-sharing OTi5 square pyramids. In the ninth O2- site, O2- is bonded to five Ti+2.55+ atoms to form a mixture of edge and corner-sharing OTi5 square pyramids. In the tenth O2- site, O2- is bonded to five Ti+2.55+ atoms to form a mixture of edge and corner-sharing OTi5 square pyramids. In the eleventh O2- site, O2- is bonded to five Ti+2.55+ atoms to form a mixture of edge and corner-sharing OTi5 square pyramids. In the twelfth O2- site, O2- is bonded to five Ti+2.55+ atoms to form a mixture of edge and corner-sharing OTi5 square pyramids. In the thirteenth O2- site, O2- is bonded to five Ti+2.55+ atoms to form a mixture of edge and corner-sharing OTi5 square pyramids. In the fourteenth O2- site, O2- is bonded to five Ti+2.55+ atoms to form a mixture of edge and corner-sharing OTi5 square pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti5O8 by Materials Project

Ti5O8 is beta indium sulfide-like structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are fifteen inequivalent Ti+3.20+ sites. In the first Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 38–61°. There are a spread of Ti–O bond distances ranging from 1.94–2.16 Å. In the second Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 36–61°. There are a spread of Ti–O bond distances ranging from 1.93–2.17 Å. In the third Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–55°. There are a spread of Ti–O bond distances ranging from 2.01–2.11 Å. In the fourth Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 47–61°. There are a spread of Ti–O bond distances ranging from 1.96–2.09 Å. In the fifth Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 47–59°. There are a spread of Ti–O bond distances ranging from 2.01–2.09 Å. In the sixth Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 35–61°. There are a spread of Ti–O bond distances ranging from 1.93–2.13 Å. In the seventh Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 36–59°. There are a spread of Ti–O bond distances ranging from 1.88–2.14 Å. In the eighth Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 43–58°. There are a spread of Ti–O bond distances ranging from 1.99–2.10 Å. In the ninth Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 46–61°. There are a spread of Ti–O bond distances ranging from 1.96–2.10 Å. In the tenth Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 38–59°. There are a spread of Ti–O bond distances ranging from 1.89–2.15 Å. In the eleventh Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 46–61°. There are a spread of Ti–O bond distances ranging from 1.93–2.10 Å. In the twelfth Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 46–58°. There are a spread of Ti–O bond distances ranging from 2.01–2.09 Å. In the thirteenth Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 45–57°. There are a spread of Ti–O bond distances ranging from 2.01–2.10 Å. In the fourteenth Ti+3.20+ site, Ti+3.20+ 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 35–58°. There are a spread of Ti–O bond distances ranging from 1.90–2.08 Å. In the fifteenth Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 46–59°. There are a spread of Ti–O bond distances ranging from 2.01–2.09 Å. There are twenty-four inequivalent O2- sites. In the first O2- site, O2- is bonded to four Ti+3.20+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the second O2- site, O2- is bonded to four Ti+3.20+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the third O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+3.20+ atoms. In the fourth O2- site, O2- is bonded in a distorted T-shaped geometry to three Ti+3.20+ atoms. In the fifth O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+3.20+ atoms. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.20+ atoms. In the seventh O2- site, O2- is bonded to four Ti+3.20+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the eighth O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+3.20+ atoms. In the ninth O2- site, O2- is bonded to four Ti+3.20+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the tenth O2- site, O2- is bonded to four Ti+3.20+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the eleventh O2- site, O2- is bonded to four Ti+3.20+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the twelfth O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+3.20+ atoms. In the thirteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+3.20+ atoms. In the fourteenth O2- site, O2- is bonded to four Ti+3.20+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the fifteenth O2- site, O2- is bonded to four Ti+3.20+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the sixteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.20+ atoms. In the seventeenth O2- site, O2- is bonded to four Ti+3.20+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the eighteenth O2- site, O2- is bonded to four Ti+3.20+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the nineteenth O2- site, O2- is bonded to four Ti+3.20+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the twentieth O2- site, O2- is bonded in a T-shaped geometry to three Ti+3.20+ atoms. In the twenty-first O2- site, O2- is bonded in a T-shaped geometry to three Ti+3.20+ atoms. In the twenty-second O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.20+ atoms. In the twenty-third O2- site, O2- is bonded to four Ti+3.20+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the twenty-fourth O2- site, O2- is bonded to four Ti+3.20+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti19O30 by Materials Project

Ti19O30 is beta indium sulfide-like structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are nineteen inequivalent Ti+3.16+ sites. In the first Ti+3.16+ site, Ti+3.16+ 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 31–57°. There are a spread of Ti–O bond distances ranging from 1.91–2.11 Å. In the second Ti+3.16+ site, Ti+3.16+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 31–61°. There are a spread of Ti–O bond distances ranging from 1.92–2.15 Å. In the third Ti+3.16+ site, Ti+3.16+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 47–58°. There are a spread of Ti–O bond distances ranging from 2.01–2.08 Å. In the fourth Ti+3.16+ site, Ti+3.16+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 47–57°. There are three shorter (2.02 Å) and three longer (2.08 Å) Ti–O bond lengths. In the fifth Ti+3.16+ site, Ti+3.16+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 47–57°. There are a spread of Ti–O bond distances ranging from 2.01–2.09 Å. In the sixth Ti+3.16+ site, Ti+3.16+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 46–58°. There are a spread of Ti–O bond distances ranging from 1.99–2.11 Å. In the seventh Ti+3.16+ site, Ti+3.16+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 43–58°. There are a spread of Ti–O bond distances ranging from 1.99–2.09 Å. In the eighth Ti+3.16+ site, Ti+3.16+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 47–61°. There are a spread of Ti–O bond distances ranging from 1.93–2.12 Å. In the ninth Ti+3.16+ site, Ti+3.16+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 45–57°. There are a spread of Ti–O bond distances ranging from 2.01–2.09 Å. In the tenth Ti+3.16+ site, Ti+3.16+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 30–60°. There are a spread of Ti–O bond distances ranging from 1.87–2.16 Å. In the eleventh Ti+3.16+ site, Ti+3.16+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 47–57°. There are a spread of Ti–O bond distances ranging from 2.02–2.09 Å. In the twelfth Ti+3.16+ site, Ti+3.16+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 44–58°. There are a spread of Ti–O bond distances ranging from 2.01–2.09 Å. In the thirteenth Ti+3.16+ site, Ti+3.16+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 45–58°. There are a spread of Ti–O bond distances ranging from 2.00–2.09 Å. In the fourteenth Ti+3.16+ site, Ti+3.16+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 47–57°. There are a spread of Ti–O bond distances ranging from 2.02–2.09 Å. In the fifteenth Ti+3.16+ site, Ti+3.16+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 45–58°. There are a spread of Ti–O bond distances ranging from 2.00–2.11 Å. In the sixteenth Ti+3.16+ site, Ti+3.16+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 47–57°. There are a spread of Ti–O bond distances ranging from 2.02–2.09 Å. In the seventeenth Ti+3.16+ site, Ti+3.16+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 44–60°. There are a spread of Ti–O bond distances ranging from 2.01–2.09 Å. In the eighteenth Ti+3.16+ site, Ti+3.16+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 47–60°. There are a spread of Ti–O bond distances ranging from 1.94–2.13 Å. In the nineteenth Ti+3.16+ site, Ti+3.16+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 30–60°. There are a spread of Ti–O bond distances ranging from 1.93–2.20 Å. There are thirty inequivalent O2- sites. In the first O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the second O2- site, O2- is bonded in a 3-coordinate geometry to three Ti+3.16+ atoms. In the third O2- site, O2- is bonded in a T-shaped geometry to three Ti+3.16+ atoms. In the fourth O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the fifth O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the sixth O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the seventh O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the eighth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.16+ atoms. In the ninth O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the tenth O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the eleventh O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+3.16+ atoms. In the twelfth O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the thirteenth O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the fourteenth O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the fifteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.16+ atoms. In the sixteenth O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the seventeenth O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the eighteenth O2- site, O2- is bonded in a T-shaped geometry to three Ti+3.16+ atoms. In the nineteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+3.16+ atoms. In the twentieth O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the twenty-first O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+3.16+ atoms. In the twenty-second O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the twenty-third O2- site, O2- is bonded in a T-shaped geometry to three Ti+3.16+ atoms. In the twenty-fourth O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the twenty-fifth O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the twenty-sixth O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the twenty-seventh O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the twenty-eighth O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the twenty-ninth O2- site, O2- is bonded in a 4-coordinate geometry to four Ti+3.16+ atoms. In the thirtieth O2- site, O2- is bonded to four Ti+3.16+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti11O18 by Materials Project

Ti11O18 is beta indium sulfide-like structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eleven inequivalent Ti+3.27+ sites. In the first Ti+3.27+ site, Ti+3.27+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 47–61°. There are a spread of Ti–O bond distances ranging from 1.94–2.10 Å. In the second Ti+3.27+ site, Ti+3.27+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 37–60°. There are a spread of Ti–O bond distances ranging from 1.93–2.20 Å. In the third Ti+3.27+ site, Ti+3.27+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 36–61°. There are a spread of Ti–O bond distances ranging from 1.92–2.19 Å. In the fourth Ti+3.27+ site, Ti+3.27+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–56°. There are a spread of Ti–O bond distances ranging from 2.01–2.09 Å. In the fifth Ti+3.27+ site, Ti+3.27+ 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 36–57°. There are a spread of Ti–O bond distances ranging from 1.90–2.07 Å. In the sixth Ti+3.27+ site, Ti+3.27+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 37–58°. There are a spread of Ti–O bond distances ranging from 1.90–2.13 Å. In the seventh Ti+3.27+ site, Ti+3.27+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–60°. There are a spread of Ti–O bond distances ranging from 1.95–2.10 Å. In the eighth Ti+3.27+ site, Ti+3.27+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 36–59°. There are a spread of Ti–O bond distances ranging from 1.89–2.15 Å. In the ninth Ti+3.27+ site, Ti+3.27+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–61°. There are a spread of Ti–O bond distances ranging from 1.95–2.10 Å. In the tenth Ti+3.27+ site, Ti+3.27+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 47–59°. There are a spread of Ti–O bond distances ranging from 2.00–2.11 Å. In the eleventh Ti+3.27+ site, Ti+3.27+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 36–61°. There are a spread of Ti–O bond distances ranging from 1.93–2.14 Å. There are eighteen inequivalent O2- sites. In the first O2- site, O2- is bonded to four Ti+3.27+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the second O2- site, O2- is bonded to four Ti+3.27+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.27+ atoms. In the fourth O2- site, O2- is bonded to four Ti+3.27+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the fifth O2- site, O2- is bonded in a T-shaped geometry to three Ti+3.27+ atoms. In the sixth O2- site, O2- is bonded to four Ti+3.27+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the seventh O2- site, O2- is bonded to four Ti+3.27+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the eighth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.27+ atoms. In the ninth O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+3.27+ atoms. In the tenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+3.27+ atoms. In the eleventh O2- site, O2- is bonded in a T-shaped geometry to three Ti+3.27+ atoms. In the twelfth O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+3.27+ atoms. In the thirteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+3.27+ atoms. In the fourteenth O2- site, O2- is bonded to four Ti+3.27+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the fifteenth O2- site, O2- is bonded to four Ti+3.27+ atoms to form a mixture of distorted corner and edge-sharing OTi4 trigonal pyramids. In the sixteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+3.27+ atoms. In the seventeenth O2- site, O2- is bonded in a T-shaped geometry to three Ti+3.27+ atoms. In the eighteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.27+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TiO2 by Materials Project

TiO2 is Rutile-like structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are three inequivalent Ti4+ sites. In the first Ti4+ site, Ti4+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 47–51°. There are a spread of Ti–O bond distances ranging from 1.94–2.01 Å. In the second Ti4+ site, Ti4+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 47–51°. There are a spread of Ti–O bond distances ranging from 1.95–2.00 Å. In the third Ti4+ site, Ti4+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 47–51°. There are a spread of Ti–O bond distances ranging from 1.94–2.01 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti4+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal non-coplanar 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 three Ti4+ atoms. In the fifth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to three Ti4+ atoms. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti4+ atoms.

36 MATERIALS SCIENCE↗