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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Na3In(PO4)2 by Materials Project

Na3In(PO4)2 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are three inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Na–O bond distances ranging from 2.31–2.95 Å. In the second Na1+ site, Na1+ is bonded to six O2- atoms to form NaO6 octahedra that share corners with six PO4 tetrahedra and edges with two equivalent InO6 octahedra. There are two shorter (2.30 Å) and four longer (2.53 Å) Na–O bond lengths. In the third Na1+ site, Na1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Na–O bond distances ranging from 2.31–2.94 Å. In3+ is bonded to six O2- atoms to form InO6 octahedra that share corners with six PO4 tetrahedra and edges with two equivalent NaO6 octahedra. There are two shorter (2.17 Å) and four longer (2.21 Å) In–O bond lengths. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent NaO6 octahedra and corners with three equivalent InO6 octahedra. The corner-sharing octahedra tilt angles range from 39–55°. There are a spread of P–O bond distances ranging from 1.52–1.58 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent NaO6 octahedra and corners with three equivalent InO6 octahedra. The corner-sharing octahedra tilt angles range from 39–56°. There are a spread of P–O bond distances ranging from 1.52–1.58 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to four Na1+ and one P5+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+, one In3+, and one P5+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one In3+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+, one In3+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one In3+, and one P5+ atom. In the sixth O2- site, O2- is bonded in a 1-coordinate geometry to four Na1+ and one P5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Na3In(PO4)2 by Materials Project

Na3In(PO4)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are three inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Na–O bond distances ranging from 2.35–2.87 Å. In the second Na1+ site, Na1+ is bonded to six O2- atoms to form distorted NaO6 octahedra that share corners with six PO4 tetrahedra and edges with two equivalent InO6 octahedra. There are a spread of Na–O bond distances ranging from 2.25–2.83 Å. In the third Na1+ site, Na1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Na–O bond distances ranging from 2.37–3.01 Å. In3+ is bonded to six O2- atoms to form InO6 octahedra that share corners with six PO4 tetrahedra and edges with two equivalent NaO6 octahedra. There are a spread of In–O bond distances ranging from 2.18–2.22 Å. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent NaO6 octahedra and corners with three equivalent InO6 octahedra. The corner-sharing octahedra tilt angles range from 36–56°. There are a spread of P–O bond distances ranging from 1.52–1.58 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent NaO6 octahedra and corners with three equivalent InO6 octahedra. The corner-sharing octahedra tilt angles range from 43–66°. There are a spread of P–O bond distances ranging from 1.52–1.58 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+, one In3+, and one P5+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+, one In3+, and one P5+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Na1+, one In3+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+, one In3+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+, one In3+, and one P5+ atom. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to three Na1+ and one P5+ atom. In the seventh O2- site, O2- is bonded in a 1-coordinate geometry to four Na1+ and one P5+ atom. In the eighth O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one In3+, and one P5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Na3In by Materials Project

Na3In is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Na sites. In the first Na site, Na is bonded to eight Na and four equivalent In atoms to form distorted NaNa8In4 cuboctahedra that share corners with twelve equivalent NaNa8In4 cuboctahedra, edges with eight equivalent NaNa8In4 cuboctahedra, edges with eight equivalent InNa12 cuboctahedra, faces with four equivalent InNa12 cuboctahedra, and faces with ten equivalent NaNa8In4 cuboctahedra. There are four shorter (3.46 Å) and four longer (3.50 Å) Na–Na bond lengths. All Na–In bond lengths are 3.50 Å. In the second Na site, Na is bonded in a distorted square co-planar geometry to eight equivalent Na and four equivalent In atoms. All Na–In bond lengths are 3.46 Å. In is bonded to twelve Na atoms to form InNa12 cuboctahedra that share corners with four equivalent InNa12 cuboctahedra, edges with eight equivalent InNa12 cuboctahedra, edges with sixteen equivalent NaNa8In4 cuboctahedra, faces with four equivalent InNa12 cuboctahedra, and faces with eight equivalent NaNa8In4 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Na3In by Materials Project

Na3In is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. there are two inequivalent Na sites. In the first Na site, Na is bonded to four equivalent Na and four equivalent In atoms to form a mixture of distorted face, edge, and corner-sharing NaNa4In4 tetrahedra. All Na–Na bond lengths are 3.38 Å. All Na–In bond lengths are 3.38 Å. In the second Na site, Na is bonded in a body-centered cubic geometry to eight equivalent Na atoms. In is bonded in a body-centered cubic geometry to eight equivalent Na atoms.

36 MATERIALS SCIENCE↗