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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Ti3(BiO3)4 by Materials Project

Bi4Ti3O12 crystallizes in the tetragonal I4/mmm 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 and faces with eight equivalent BiO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. There is four shorter (1.92 Å) and two longer (1.98 Å) Ti–O bond length. In the second Ti4+ site, Ti4+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ti–O bond distances ranging from 1.80–2.27 Å. There are two inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 4-coordinate geometry to eight O2- atoms. There are four shorter (2.31 Å) and four longer (2.89 Å) Bi–O bond lengths. In the second Bi3+ site, Bi3+ is bonded to twelve O2- atoms to form distorted BiO12 cuboctahedra that share corners with eight equivalent BiO12 cuboctahedra, faces with five equivalent BiO12 cuboctahedra, and faces with four equivalent TiO6 octahedra. There are a spread of Bi–O bond distances ranging from 2.51–2.93 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two Ti4+ and four equivalent Bi3+ atoms. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two equivalent Ti4+ and two equivalent Bi3+ atoms. In the third O2- site, O2- is bonded in a linear geometry to two equivalent Ti4+ and four equivalent Bi3+ atoms. In the fourth O2- site, O2- is bonded to four equivalent Bi3+ atoms to form a mixture of edge and corner-sharing OBi4 tetrahedra. In the fifth O2- site, O2- is bonded in a single-bond geometry to one Ti4+ and four equivalent Bi3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti(Bi3O5)4 by Materials Project

Bi12TiO20 crystallizes in the cubic I23 space group. The structure is three-dimensional. Ti4+ is bonded in a tetrahedral geometry to four equivalent O2- atoms. All Ti–O bond lengths are 1.85 Å. Bi3+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Bi–O bond distances ranging from 2.11–2.65 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to three equivalent Bi3+ atoms. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one Ti4+ and three equivalent Bi3+ atoms. In the third O2- site, O2- is bonded in a trigonal planar geometry to three equivalent Bi3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti4Bi2O11 by Materials Project

Bi2Ti4O11 crystallizes in the monoclinic C2/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 three TiO6 octahedra, corners with four equivalent BiO5 square pyramids, and edges with three TiO6 octahedra. The corner-sharing octahedra tilt angles range from 11–19°. There are a spread of Ti–O bond distances ranging from 1.89–2.06 Å. In the second Ti4+ site, Ti4+ is bonded to six O2- atoms to form distorted TiO6 octahedra that share corners with four TiO6 octahedra, corners with three equivalent BiO5 square pyramids, and edges with two equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 0–28°. There are a spread of Ti–O bond distances ranging from 1.82–2.28 Å. Bi3+ is bonded to five O2- atoms to form distorted BiO5 square pyramids that share corners with seven TiO6 octahedra and edges with four equivalent BiO5 square pyramids. The corner-sharing octahedra tilt angles range from 53–74°. There are a spread of Bi–O bond distances ranging from 2.18–2.47 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded to one Ti4+ and three equivalent Bi3+ atoms to form OTiBi3 tetrahedra that share corners with six OTiBi3 tetrahedra and edges with three OTi2Bi2 tetrahedra. In the second O2- site, O2- is bonded in a linear geometry to two Ti4+ atoms. In the third O2- site, O2- is bonded to two equivalent Ti4+ and two equivalent Bi3+ atoms to form distorted OTi2Bi2 tetrahedra that share corners with six OTiBi3 tetrahedra and edges with two OTi2Bi2 tetrahedra. In the fourth O2- site, O2- is bonded in a distorted T-shaped geometry to three Ti4+ atoms. In the fifth O2- site, O2- is bonded in a distorted T-shaped geometry to three Ti4+ atoms. In the sixth O2- site, O2- is bonded in a linear geometry to two equivalent Ti4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti3(BiO3)4 by Materials Project

Bi4Ti3O12 is Pb (Zr_0.50 Ti_0.48) O_3-like structured and crystallizes in the monoclinic Cc 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 corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 22–32°. There are a spread of Ti–O bond distances ranging from 1.85–2.12 Å. In the second Ti4+ site, Ti4+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ti–O bond distances ranging from 1.79–2.34 Å. In the third Ti4+ site, Ti4+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ti–O bond distances ranging from 1.76–2.52 Å. There are four inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.24–2.58 Å. In the second Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.23–2.71 Å. In the third Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.31–2.53 Å. In the fourth Bi3+ site, Bi3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Bi–O bond distances ranging from 2.31–2.78 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded to four Bi3+ atoms to form a mixture of edge and corner-sharing OBi4 tetrahedra. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two Ti4+ and two equivalent Bi3+ atoms. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ti4+ and two equivalent Bi3+ atoms. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one Ti4+ and two equivalent Bi3+ atoms. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ti4+ and two equivalent Bi3+ atoms. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Ti4+ and two Bi3+ atoms. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Ti4+ and one Bi3+ atom. In the eighth O2- site, O2- is bonded to four Bi3+ atoms to form a mixture of edge and corner-sharing OBi4 tetrahedra. In the ninth O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Ti4+ and two equivalent Bi3+ atoms. In the tenth O2- site, O2- is bonded in a distorted single-bond geometry to one Ti4+ and two equivalent Bi3+ atoms. In the eleventh O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Ti4+ and one Bi3+ atom. In the twelfth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Ti4+ and two equivalent Bi3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti4Bi2O11 by Materials Project

Bi2Ti4O11 crystallizes in the monoclinic C2/c 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 octahedra tilt angles range from 14–19°. There are a spread of Ti–O bond distances ranging from 1.90–2.03 Å. In the second Ti4+ site, Ti4+ 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 5–27°. There are a spread of Ti–O bond distances ranging from 1.81–2.28 Å. Bi3+ is bonded in a 5-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.19–3.01 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ti4+ and two equivalent Bi3+ atoms. In the second O2- site, O2- is bonded in a distorted T-shaped geometry to three Ti4+ atoms. In the third O2- site, O2- is bonded in a distorted T-shaped geometry to three Ti4+ atoms. In the fourth O2- site, O2- is bonded in a distorted linear geometry to two Ti4+ and one Bi3+ atom. In the fifth O2- site, O2- is bonded to one Ti4+ and three equivalent Bi3+ atoms to form a mixture of distorted corner and edge-sharing OTiBi3 tetrahedra. In the sixth O2- site, O2- is bonded in a linear geometry to two equivalent Ti4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti3(BiO3)4 by Materials Project

Bi4Ti3O12 is Pb (Zr_0.50 Ti_0.48) O_3-like structured and crystallizes in the orthorhombic Aea2 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 corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles are 7°. There are a spread of Ti–O bond distances ranging from 1.87–2.01 Å. In the second Ti4+ site, Ti4+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ti–O bond distances ranging from 1.79–2.33 Å. There are two inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 7-coordinate geometry to eight O2- atoms. There are a spread of Bi–O bond distances ranging from 2.28–3.10 Å. In the second Bi3+ site, Bi3+ is bonded in a 9-coordinate geometry to five O2- atoms. There are a spread of Bi–O bond distances ranging from 2.23–2.85 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Ti4+ and one Bi3+ atom. In the second O2- site, O2- is bonded in a 5-coordinate geometry to two Ti4+ and three equivalent Bi3+ atoms. In the third O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Ti4+ and one Bi3+ atom. In the fourth O2- site, O2- is bonded in a distorted linear geometry to two equivalent Ti4+ atoms. In the fifth O2- site, O2- is bonded in a single-bond geometry to one Ti4+ and four equivalent Bi3+ atoms. In the sixth O2- site, O2- is bonded to four equivalent Bi3+ atoms to form a mixture of edge and corner-sharing OBi4 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti(BiO3)2 by Materials Project

Ti(BiO3)2 crystallizes in the tetragonal P4mm space group. The structure is three-dimensional. Ti4+ is bonded in a 5-coordinate geometry to five O2- atoms. There is one shorter (1.80 Å) and four longer (1.94 Å) Ti–O bond length. Bi4+ is bonded in a 4-coordinate geometry to eight O2- atoms. There are a spread of Bi–O bond distances ranging from 2.25–2.93 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Ti4+ and two equivalent Bi4+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to four equivalent Bi4+ atoms. In the third O2- site, O2- is bonded in a single-bond geometry to one Ti4+ and four equivalent Bi4+ atoms.

36 MATERIALS SCIENCE↗