DOI: 10.17188/1284225
title: Materials Data on Yb2TiO5 by Materials Project

description: Yb2TiO5 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are ten inequivalent Yb3+ sites. In the first Yb3+ site, Yb3+ is bonded in a distorted hexagonal planar geometry to six O2- atoms. There are a spread of Yb–O bond distances ranging from 2.18–2.41 Å. In the second Yb3+ site, Yb3+ is bonded in a distorted hexagonal planar geometry to six O2- atoms. There are a spread of Yb–O bond distances ranging from 2.21–2.37 Å. In the third Yb3+ site, Yb3+ is bonded in a distorted hexagonal planar geometry to six O2- atoms. There are a spread of Yb–O bond distances ranging from 2.26–2.39 Å. In the fourth Yb3+ site, Yb3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Yb–O bond distances ranging from 2.14–2.49 Å. In the fifth Yb3+ site, Yb3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Yb–O bond distances ranging from 2.29–2.59 Å. In the sixth Yb3+ site, Yb3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Yb–O bond distances ranging from 2.17–2.47 Å. In the seventh Yb3+ site, Yb3+ is bonded to six O2- atoms to form distorted YbO6 octahedra that share corners with two equivalent YbO6 octahedra, a cornercorner with one TiO5 trigonal bipyramid, and an edgeedge with one TiO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 43–95°. There are a spread of Yb–O bond distances ranging from 2.13–2.50 Å. In the eighth Yb3+ site, Yb3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Yb–O bond distances ranging from 2.20–2.69 Å. In the ninth Yb3+ site, Yb3+ is bonded to seven O2- atoms to form distorted YbO7 pentagonal bipyramids that share a cornercorner with one YbO7 pentagonal bipyramid, an edgeedge with one YbO7 pentagonal bipyramid, and an edgeedge with one TiO6 pentagonal pyramid. There are a spread of Yb–O bond distances ranging from 2.19–2.45 Å. In the tenth Yb3+ site, Yb3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Yb–O bond distances ranging from 2.24–2.60 Å. There are eight inequivalent Ti4+ sites. In the first 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 1.88–2.24 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 1.83–2.00 Å. In the third Ti4+ site, Ti4+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Ti–O bond distances ranging from 1.89–2.32 Å. In the fourth Ti4+ site, Ti4+ is bonded to six O2- atoms to form distorted TiO6 pentagonal pyramids that share edges with two equivalent YbO7 pentagonal bipyramids. There are a spread of Ti–O bond distances ranging from 1.85–1.98 Å. In the fifth Ti4+ site, Ti4+ is bonded to five O2- atoms to form distorted TiO5 trigonal bipyramids that share corners with two equivalent YbO6 octahedra and edges with two equivalent YbO6 octahedra. The corner-sharing octahedral tilt angles are 43°. There are a spread of Ti–O bond distances ranging from 1.85–2.14 Å. In the sixth 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 1.83–2.15 Å. In the seventh 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 1.90–2.19 Å. In the eighth 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 1.92–2.51 Å. There are twenty-eight inequivalent O2- sites. In the first O2- site, O2- is bonded to four Yb3+ atoms to form OYb4 tetrahedra that share corners with six OYb4 tetrahedra and edges with two equivalent OYb3Ti tetrahedra. In the second O2- site, O2- is bonded in a 4-coordinate geometry to three Yb3+ and one Ti4+ atom. In the third O2- site, O2- is bonded in a 4-coordinate geometry to three Yb3+ and one Ti4+ atom. In the fourth O2- site, O2- is bonded to three Yb3+ and one Ti4+ atom to form distorted OYb3Ti tetrahedra that share corners with four OYb4 tetrahedra, corners with two OYb2Ti2 trigonal pyramids, and edges with two OYb4 tetrahedra. In the fifth O2- site, O2- is bonded to two equivalent Yb3+ and two Ti4+ atoms to form distorted OYb2Ti2 trigonal pyramids that share corners with two equivalent OYb3Ti tetrahedra and an edgeedge with one OYb2Ti2 tetrahedra. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to three Yb3+ and one Ti4+ atom. In the seventh O2- site, O2- is bonded to three Yb3+ and one Ti4+ atom to form corner-sharing OYb3Ti tetrahedra. In the eighth O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Yb3+ and one Ti4+ atom. In the ninth O2- site, O2- is bonded in a 3-coordinate geometry to three Yb3+ and one O2- atom. The O–O bond length is 1.76 Å. In the tenth O2- site, O2- is bonded in a 4-coordinate geometry to three Yb3+ and one Ti4+ atom. In the eleventh O2- site, O2- is bonded to two equivalent Yb3+ and two Ti4+ atoms to form OYb2Ti2 tetrahedra that share corners with two equivalent OYb4 tetrahedra, edges with three OYb3Ti tetrahedra, and an edgeedge with one OYb2Ti2 trigonal pyramid. In the twelfth O2- site, O2- is bonded to three Yb3+ and one Ti4+ atom to form distorted OYb3Ti tetrahedra that share corners with three OYb4 tetrahedra, a cornercorner with one OYb2Ti2 trigonal pyramid, and edges with three OYb2Ti2 tetrahedra. In the thirteenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two equivalent Yb3+ and two Ti4+ atoms. In the fourteenth O2- site, O2- is bonded in a 4-coordinate geometry to three Yb3+ and one Ti4+ atom. In the fifteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Yb3+, one Ti4+, and one O2- atom. The O–O bond length is 1.50 Å. In the sixteenth O2- site, O2- is bonded to four Yb3+ atoms to form OYb4 tetrahedra that share corners with eight OYb4 tetrahedra and an edgeedge with one OYb2Ti2 tetrahedra. In the seventeenth O2- site, O2- is bonded in a 5-coordinate geometry to two equivalent Yb3+, one Ti4+, and two equivalent O2- atoms. In the eighteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Yb3+, one Ti4+, and one O2- atom. The O–O bond length is 1.49 Å. In the nineteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Yb3+ and two Ti4+ atoms. In the twentieth O2- site, O2- is bonded to two equivalent Yb3+ and two Ti4+ atoms to form a mixture of distorted edge and corner-sharing OYb2Ti2 tetrahedra. In the twenty-first O2- site, O2- is bonded to two equivalent Yb3+ and two Ti4+ atoms to form distorted OYb2Ti2 tetrahedra that share corners with four OYb2Ti2 tetrahedra and an edgeedge with one OYb4 tetrahedra. In the twenty-second O2- site, O2- is bonded to two equivalent Yb3+ and two Ti4+ atoms to form a mixture of edge and corner-sharing OYb2Ti2 trigonal pyramids. In the twenty-third O2- site, O2- is bonded to two Yb3+ and two Ti4+ atoms to form a mixture of distorted edge and corner-sharing OYb2Ti2 tetrahedra. In the twenty-fourth O2- site, O2- is bonded to four Yb3+ atoms to form OYb4 tetrahedra that share corners with four OYb4 tetrahedra and an edgeedge with one OYb2Ti2 tetrahedra. In the twenty-fifth O2- site, O2- is bonded to two equivalent Yb3+ and two Ti4+ atoms to form a mixture of distorted edge and corner-sharing OYb2Ti2 tetrahedra. In the twenty-sixth O2- site, O2- is bonded in a 4-coordinate geometry to three Yb3+ and one Ti4+ atom. In the twenty-seventh O2- site, O2- is bonded to two equivalent Yb3+ and two Ti4+ atoms to form a mixture of edge and corner-sharing OYb2Ti2 tetrahedra. In the twenty-eighth O2- site, O2- is bonded to two equivalent Yb3+ and two Ti4+ atoms to form a mixture of distorted edge and corner-sharing OYb2Ti2 trigonal pyramids.