Materials Data on Tb6O11 by Materials Project
Tb6O11 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are twelve inequivalent Tb+3.67+ sites. In the first Tb+3.67+ site, Tb+3.67+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Tb–O bond distances ranging from 2.30–2.57 Å. In the second Tb+3.67+ site, Tb+3.67+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Tb–O bond distances ranging from 2.29–2.38 Å. In the third Tb+3.67+ site, Tb+3.67+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Tb–O bond distances ranging from 2.35–2.45 Å. In the fourth Tb+3.67+ site, Tb+3.67+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Tb–O bond distances ranging from 2.32–2.51 Å. In the fifth Tb+3.67+ site, Tb+3.67+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Tb–O bond distances ranging from 2.27–2.43 Å. In the sixth Tb+3.67+ site, Tb+3.67+ is bonded to seven O2- atoms to form distorted TbO7 pentagonal bipyramids that share a cornercorner with one TbO6 octahedra, a cornercorner with one TbO7 pentagonal bipyramid, an edgeedge with one TbO6 octahedra, and an edgeedge with one TbO7 pentagonal bipyramid. The corner-sharing octahedral tilt angles are 55°. There are a spread of Tb–O bond distances ranging from 2.29–2.40 Å. In the seventh Tb+3.67+ site, Tb+3.67+ is bonded to seven O2- atoms to form distorted TbO7 pentagonal bipyramids that share a cornercorner with one TbO6 octahedra, a cornercorner with one TbO7 pentagonal bipyramid, an edgeedge with one TbO6 octahedra, and edges with three TbO7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 50°. There are a spread of Tb–O bond distances ranging from 2.24–2.47 Å. In the eighth Tb+3.67+ site, Tb+3.67+ is bonded in a distorted body-centered cubic geometry to eight O2- atoms. There are a spread of Tb–O bond distances ranging from 2.32–2.73 Å. In the ninth Tb+3.67+ site, Tb+3.67+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Tb–O bond distances ranging from 2.31–2.51 Å. In the tenth Tb+3.67+ site, Tb+3.67+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Tb–O bond distances ranging from 2.27–2.43 Å. In the eleventh Tb+3.67+ site, Tb+3.67+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Tb–O bond distances ranging from 2.27–2.49 Å. In the twelfth Tb+3.67+ site, Tb+3.67+ is bonded to six O2- atoms to form a mixture of distorted edge and corner-sharing TbO6 octahedra. There are a spread of Tb–O bond distances ranging from 2.24–2.33 Å. There are twenty-two inequivalent O2- sites. In the first O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of distorted edge and corner-sharing OTb4 tetrahedra. In the second O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of edge and corner-sharing OTb4 tetrahedra. In the third O2- site, O2- is bonded in a 4-coordinate geometry to four Tb+3.67+ atoms. In the fourth O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of distorted edge and corner-sharing OTb4 tetrahedra. In the fifth O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of distorted edge and corner-sharing OTb4 tetrahedra. In the sixth O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of distorted edge and corner-sharing OTb4 tetrahedra. In the seventh O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of edge and corner-sharing OTb4 tetrahedra. In the eighth O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of edge and corner-sharing OTb4 tetrahedra. In the ninth O2- site, O2- is bonded in a 4-coordinate geometry to four Tb+3.67+ atoms. In the tenth O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of distorted edge and corner-sharing OTb4 tetrahedra. In the eleventh O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of distorted edge and corner-sharing OTb4 tetrahedra. In the twelfth O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of edge and corner-sharing OTb4 tetrahedra. In the thirteenth O2- site, O2- is bonded in a 4-coordinate geometry to four Tb+3.67+ atoms. In the fourteenth O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of edge and corner-sharing OTb4 tetrahedra. In the fifteenth O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of edge and corner-sharing OTb4 tetrahedra. In the sixteenth O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of edge and corner-sharing OTb4 tetrahedra. In the seventeenth O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of distorted edge and corner-sharing OTb4 tetrahedra. In the eighteenth O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of edge and corner-sharing OTb4 tetrahedra. In the nineteenth O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of edge and corner-sharing OTb4 tetrahedra. In the twentieth O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of distorted edge and corner-sharing OTb4 tetrahedra. In the twenty-first O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of edge and corner-sharing OTb4 tetrahedra. In the twenty-second O2- site, O2- is bonded to four Tb+3.67+ atoms to form a mixture of edge and corner-sharing OTb4 tetrahedra.