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Materials Data on NaTaO3 by Materials Project

NaTaO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pna2_1 space group. The structure is three-dimensional. Na1+ is bonded in a 9-coordinate geometry to eight O2- atoms. There are a spread of Na–O bond distances ranging from 2.44–2.76 Å. Ta5+ is bonded to six O2- atoms to form corner-sharing TaO6 octahedra. The corner-sharing octahedra tilt angles range from 20–21°. There is one shorter (1.99 Å) and five longer (2.00 Å) Ta–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to three equivalent Na1+ and two equivalent Ta5+ atoms. In the second O2- site, O2- is bonded in a 5-coordinate geometry to three equivalent Na1+ and two equivalent Ta5+ atoms. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Na1+ and two equivalent Ta5+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on NaTaO3 by Materials Project

NaTaO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Na1+ is bonded to twelve equivalent O2- atoms to form NaO12 cuboctahedra that share corners with twelve equivalent NaO12 cuboctahedra, faces with six equivalent NaO12 cuboctahedra, and faces with eight equivalent TaO6 octahedra. All Na–O bond lengths are 2.82 Å. Ta5+ is bonded to six equivalent O2- atoms to form TaO6 octahedra that share corners with six equivalent TaO6 octahedra and faces with eight equivalent NaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Ta–O bond lengths are 1.99 Å. O2- is bonded in a distorted linear geometry to four equivalent Na1+ and two equivalent Ta5+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on NaTaO3 by Materials Project

NaTaO3 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are four shorter (2.55 Å) and four longer (2.77 Å) Na–O bond lengths. In the second Na1+ site, Na1+ is bonded in a 12-coordinate geometry to eight O2- atoms. There are four shorter (2.55 Å) and four longer (2.77 Å) Na–O bond lengths. Ta5+ is bonded to six O2- atoms to form corner-sharing TaO6 octahedra. The corner-sharing octahedra tilt angles range from 0–21°. All Ta–O bond lengths are 2.00 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Na1+ and two equivalent Ta5+ atoms. In the second O2- site, O2- is bonded in a distorted linear geometry to four Na1+ and two equivalent Ta5+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on NaTaO3 by Materials Project

NaTaO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are a spread of Na–O bond distances ranging from 2.43–3.07 Å. In the second Na1+ site, Na1+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Na–O bond distances ranging from 2.57–2.95 Å. Ta5+ is bonded to six O2- atoms to form corner-sharing TaO6 octahedra. The corner-sharing octahedra tilt angles range from 17–24°. All Ta–O bond lengths are 2.00 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to four Na1+ and two equivalent Ta5+ atoms. In the second O2- site, O2- is bonded in a 5-coordinate geometry to three Na1+ and two equivalent Ta5+ atoms. In the third O2- site, O2- is bonded in a 4-coordinate geometry to four Na1+ and two equivalent Ta5+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on NaTaO3 by Materials Project

NaTaO3 crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Na1+ is bonded in a hexagonal planar geometry to six equivalent O2- atoms. All Na–O bond lengths are 2.65 Å. Ta5+ is bonded to six equivalent O2- atoms to form corner-sharing TaO6 octahedra. The corner-sharing octahedral tilt angles are 43°. All Ta–O bond lengths are 2.00 Å. O2- is bonded in a 4-coordinate geometry to two equivalent Na1+ and two equivalent Ta5+ atoms.

36 MATERIALS SCIENCE↗