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Materials Data on TmScO3 by Materials Project

TmScO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Tm3+ is bonded to twelve equivalent O2- atoms to form TmO12 cuboctahedra that share corners with twelve equivalent TmO12 cuboctahedra, faces with six equivalent TmO12 cuboctahedra, and faces with eight equivalent ScO6 octahedra. All Tm–O bond lengths are 2.83 Å. Sc3+ is bonded to six equivalent O2- atoms to form ScO6 octahedra that share corners with six equivalent ScO6 octahedra and faces with eight equivalent TmO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Sc–O bond lengths are 2.00 Å. O2- is bonded in a distorted linear geometry to four equivalent Tm3+ and two equivalent Sc3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on TmScO3 by Materials Project

TmScO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Tm3+ is bonded in a 4-coordinate geometry to eight O2- atoms. There are a spread of Tm–O bond distances ranging from 2.19–2.86 Å. Sc3+ is bonded to six O2- atoms to form corner-sharing ScO6 octahedra. The corner-sharing octahedra tilt angles range from 41–45°. There are a spread of Sc–O bond distances ranging from 2.09–2.15 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to three equivalent Tm3+ and two equivalent Sc3+ atoms. In the second O2- site, O2- is bonded to two equivalent Tm3+ and two equivalent Sc3+ atoms to form distorted corner-sharing OTm2Sc2 trigonal pyramids.

36 MATERIALS SCIENCE↗