Materials Data on Sc2(TeO3)3 by Materials Project
Sc2(TeO3)3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Sc3+ sites. In the first Sc3+ site, Sc3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Sc–O bond distances ranging from 2.07–2.63 Å. In the second Sc3+ site, Sc3+ is bonded in an octahedral geometry to six O2- atoms. There are a spread of Sc–O bond distances ranging from 2.05–2.28 Å. There are three inequivalent Te4+ sites. In the first Te4+ site, Te4+ is bonded in a 3-coordinate geometry to three O2- atoms. There is two shorter (1.90 Å) and one longer (1.93 Å) Te–O bond length. In the second Te4+ site, Te4+ is bonded in a 5-coordinate geometry to three O2- atoms. There are a spread of Te–O bond distances ranging from 1.88–1.94 Å. In the third Te4+ site, Te4+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There is two shorter (1.89 Å) and one longer (1.91 Å) Te–O bond length. There are nine inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal non-coplanar geometry to two equivalent Sc3+ and one Te4+ atom. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Sc3+ and one Te4+ atom. In the third O2- site, O2- is bonded in a trigonal non-coplanar geometry to two Sc3+ and one Te4+ atom. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to one Sc3+ and one Te4+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sc3+ and one Te4+ atom. In the sixth O2- site, O2- is bonded in a trigonal planar geometry to two equivalent Sc3+ and one Te4+ atom. In the seventh O2- site, O2- is bonded in a bent 150 degrees geometry to one Sc3+ and one Te4+ atom. In the eighth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sc3+ and one Te4+ atom. In the ninth O2- site, O2- is bonded in a 2-coordinate geometry to one Sc3+ and one Te4+ atom.