Materials Data on Ti11BeO20 by Materials Project
BeTi11O20 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Be2+ is bonded in a trigonal planar geometry to three O2- atoms. All Be–O bond lengths are 1.61 Å. There are eleven inequivalent Ti+3.45+ sites. In the first Ti+3.45+ site, Ti+3.45+ 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 36–58°. There are a spread of Ti–O bond distances ranging from 1.91–2.12 Å. In the second Ti+3.45+ site, Ti+3.45+ 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 1.92–2.14 Å. In the third Ti+3.45+ site, Ti+3.45+ 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 44–57°. There are a spread of Ti–O bond distances ranging from 1.89–2.20 Å. In the fourth Ti+3.45+ site, Ti+3.45+ 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 40–57°. There are a spread of Ti–O bond distances ranging from 1.93–2.11 Å. In the fifth Ti+3.45+ site, Ti+3.45+ 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 21–54°. There are a spread of Ti–O bond distances ranging from 1.90–2.16 Å. In the sixth Ti+3.45+ site, Ti+3.45+ 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 45–58°. There are a spread of Ti–O bond distances ranging from 1.97–2.08 Å. In the seventh Ti+3.45+ site, Ti+3.45+ 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 13–57°. There are a spread of Ti–O bond distances ranging from 1.91–2.14 Å. In the eighth Ti+3.45+ site, Ti+3.45+ 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 9–55°. There are a spread of Ti–O bond distances ranging from 1.95–2.09 Å. In the ninth Ti+3.45+ site, Ti+3.45+ 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 9–55°. There are a spread of Ti–O bond distances ranging from 1.88–2.10 Å. In the tenth Ti+3.45+ site, Ti+3.45+ 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 44–57°. There are a spread of Ti–O bond distances ranging from 1.91–2.14 Å. In the eleventh Ti+3.45+ site, Ti+3.45+ 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 9–55°. There are a spread of Ti–O bond distances ranging from 1.94–2.17 Å. There are twenty inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Be2+ and three Ti+3.45+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.45+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.45+ atoms. In the fourth O2- site, O2- is bonded in a distorted see-saw-like geometry to four Ti+3.45+ atoms. In the fifth O2- site, O2- is bonded in a trigonal planar geometry to three Ti+3.45+ atoms. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.45+ atoms. In the seventh O2- site, O2- is bonded to four Ti+3.45+ atoms to form edge-sharing OTi4 trigonal pyramids. In the eighth O2- site, O2- is bonded to four Ti+3.45+ atoms to form edge-sharing OTi4 trigonal pyramids. In the ninth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.45+ atoms. In the tenth O2- site, O2- is bonded in a distorted T-shaped geometry to three Ti+3.45+ atoms. In the eleventh O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.45+ atoms. In the twelfth O2- site, O2- is bonded in a 3-coordinate geometry to three Ti+3.45+ atoms. In the thirteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.45+ atoms. In the fourteenth O2- site, O2- is bonded in a trigonal planar geometry to three Ti+3.45+ atoms. In the fifteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Be2+ and three Ti+3.45+ atoms. In the sixteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+3.45+ atoms. In the seventeenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Be2+ and three Ti+3.45+ atoms. In the eighteenth O2- site, O2- is bonded in a distorted see-saw-like geometry to four Ti+3.45+ atoms. In the nineteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Ti+3.45+ atoms. In the twentieth O2- site, O2- is bonded in a T-shaped geometry to three Ti+3.45+ atoms.