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Materials Data on Na2CO3 by Materials Project

Na2CO3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are twelve inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded to six O2- atoms to form face-sharing NaO6 octahedra. There are a spread of Na–O bond distances ranging from 2.35–2.44 Å. In the second Na1+ site, Na1+ is bonded to six O2- atoms to form face-sharing NaO6 octahedra. There are a spread of Na–O bond distances ranging from 2.36–2.41 Å. In the third Na1+ site, Na1+ is bonded to six O2- atoms to form face-sharing NaO6 octahedra. There are a spread of Na–O bond distances ranging from 2.33–2.45 Å. In the fourth Na1+ site, Na1+ is bonded to six O2- atoms to form face-sharing NaO6 octahedra. There are a spread of Na–O bond distances ranging from 2.33–2.46 Å. In the fifth Na1+ site, Na1+ is bonded to six O2- atoms to form face-sharing NaO6 octahedra. There are a spread of Na–O bond distances ranging from 2.33–2.46 Å. In the sixth Na1+ site, Na1+ is bonded to six O2- atoms to form face-sharing NaO6 octahedra. There are a spread of Na–O bond distances ranging from 2.31–2.46 Å. In the seventh Na1+ site, Na1+ is bonded in a 4-coordinate geometry to nine O2- atoms. There are a spread of Na–O bond distances ranging from 2.43–3.07 Å. In the eighth 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 2.45–3.01 Å. In the ninth 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 2.40–2.96 Å. In the tenth Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Na–O bond distances ranging from 2.39–2.63 Å. In the eleventh Na1+ site, Na1+ is bonded in a 4-coordinate geometry to nine O2- atoms. There are a spread of Na–O bond distances ranging from 2.43–3.04 Å. In the twelfth 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 2.43–2.95 Å. There are six inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. All C–O bond lengths are 1.30 Å. In the second C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. All C–O bond lengths are 1.30 Å. In the third C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.30 Å) and one longer (1.31 Å) C–O bond length. In the fourth C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.30 Å) and one longer (1.31 Å) C–O bond length. In the fifth C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. All C–O bond lengths are 1.30 Å. In the sixth C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.30 Å) and one longer (1.31 Å) C–O bond length. There are eighteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to five Na1+ and one C4+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to five Na1+ and one C4+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to four Na1+ and one C4+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to five Na1+ and one C4+ atom. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to five Na1+ and one C4+ atom. In the sixth O2- site, O2- is bonded in a 1-coordinate geometry to five Na1+ and one C4+ atom. In the seventh O2- site, O2- is bonded in a 1-coordinate geometry to five Na1+ and one C4+ atom. In the eighth O2- site, O2- is bonded in a 1-coordinate geometry to five Na1+ and one C4+ atom. In the ninth O2- site, O2- is bonded in a 1-coordinate geometry to four Na1+ and one C4+ atom. In the tenth O2- site, O2- is bonded in a 1-coordinate geometry to four Na1+ and one C4+ atom. In the eleventh O2- site, O2- is bonded in a 1-coordinate geometry to five Na1+ and one C4+ atom. In the twelfth O2- site, O2- is bonded in a 1-coordinate geometry to four Na1+ and one C4+ atom. In the thirteenth O2- site, O2- is bonded in a 1-coordinate geometry to four Na1+ and one C4+ atom. In the fourteenth O2- site, O2- is bonded in a 1-coordinate geometry to four Na1+ and one C4+ atom. In the fifteenth O2- site, O2- is bonded in a 1-coordinate geometry to five Na1+ and one C4+ atom. In the sixteenth O2- site, O2- is bonded in a 1-coordinate geometry to five Na1+ and one C4+ atom. In the seventeenth O2- site, O2- is bonded in a 1-coordinate geometry to five Na1+ and one C4+ atom. In the eighteenth O2- site, O2- is bonded in a 1-coordinate geometry to five Na1+ and one C4+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Na3Pd by Materials Project

Na3Pd is alpha bismuth trifluoride 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 in a 4-coordinate geometry to four equivalent Na and four equivalent Pd atoms. All Na–Na bond lengths are 3.17 Å. All Na–Pd bond lengths are 3.17 Å. In the second Na site, Na is bonded to eight equivalent Na and four equivalent Pd atoms to form NaNa8Pd4 cuboctahedra that share corners with four equivalent NaNa8Pd4 cuboctahedra, corners with eight equivalent PdNa12 cuboctahedra, edges with eight equivalent NaNa8Pd4 cuboctahedra, faces with four equivalent NaNa8Pd4 cuboctahedra, and faces with six equivalent PdNa12 cuboctahedra. All Na–Pd bond lengths are 3.36 Å. Pd is bonded to twelve Na atoms to form PdNa12 cuboctahedra that share corners with four equivalent PdNa12 cuboctahedra, corners with eight equivalent NaNa8Pd4 cuboctahedra, edges with eight equivalent PdNa12 cuboctahedra, faces with four equivalent PdNa12 cuboctahedra, and faces with six equivalent NaNa8Pd4 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on Na3Pr by Materials Project

Na3Pr is beta Cu3Ti-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 Pr atoms to form NaNa8Pr4 cuboctahedra that share corners with twelve equivalent NaNa8Pr4 cuboctahedra, edges with eight equivalent PrNa12 cuboctahedra, edges with sixteen NaNa8Pr4 cuboctahedra, faces with four equivalent PrNa12 cuboctahedra, and faces with fourteen NaNa8Pr4 cuboctahedra. There are four shorter (3.60 Å) and four longer (3.76 Å) Na–Na bond lengths. All Na–Pr bond lengths are 3.76 Å. In the second Na site, Na is bonded to eight equivalent Na and four equivalent Pr atoms to form distorted NaNa8Pr4 cuboctahedra that share corners with four equivalent NaNa8Pr4 cuboctahedra, corners with eight equivalent PrNa12 cuboctahedra, edges with twenty-four NaNa8Pr4 cuboctahedra, faces with six equivalent PrNa12 cuboctahedra, and faces with twelve NaNa8Pr4 cuboctahedra. All Na–Pr bond lengths are 3.60 Å. Pr is bonded to twelve Na atoms to form PrNa12 cuboctahedra that share corners with four equivalent PrNa12 cuboctahedra, corners with eight equivalent NaNa8Pr4 cuboctahedra, edges with eight equivalent PrNa12 cuboctahedra, edges with sixteen equivalent NaNa8Pr4 cuboctahedra, faces with four equivalent PrNa12 cuboctahedra, and faces with fourteen NaNa8Pr4 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on NaPO4 by Materials Project

NaPO4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Na sites. In the first Na site, Na is bonded in a distorted see-saw-like geometry to four O atoms. There are a spread of Na–O bond distances ranging from 2.30–2.38 Å. In the second Na site, Na is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Na–O bond distances ranging from 2.26–2.84 Å. There are two inequivalent P sites. In the first P site, P is bonded to four O atoms to form corner-sharing PO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.50–1.63 Å. In the second P site, P is bonded to four O atoms to form corner-sharing PO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.49–1.63 Å. There are eight inequivalent O sites. In the first O site, O is bonded in a 3-coordinate geometry to two equivalent Na and one P atom. In the second O site, O is bonded in a bent 120 degrees geometry to two P atoms. In the third O site, O is bonded in a single-bond geometry to one O atom. The O–O bond length is 1.23 Å. In the fourth O site, O is bonded in an L-shaped geometry to one Na and one O atom. In the fifth O site, O is bonded in a bent 120 degrees geometry to one Na and one P atom. In the sixth O site, O is bonded in a distorted trigonal planar geometry to two Na and one P atom. In the seventh O site, O is bonded in a bent 120 degrees geometry to two P atoms. In the eighth O site, O is bonded in a distorted trigonal planar geometry to two equivalent Na and one P atom.

36 MATERIALS SCIENCE↗

Materials Data on Na2Si3SnO11 by Materials Project

Na2SnSi3O11 crystallizes in the orthorhombic C222_1 space group. The structure is three-dimensional. there are two inequivalent Na sites. In the first Na site, Na is bonded to six O atoms to form distorted NaO6 octahedra that share corners with two equivalent NaO5 square pyramids, corners with two equivalent SiO4 tetrahedra, edges with two equivalent SnO6 octahedra, and an edgeedge with one SiO4 tetrahedra. There are a spread of Na–O bond distances ranging from 2.47–2.54 Å. In the second Na site, Na is bonded to five O atoms to form distorted NaO5 square pyramids that share corners with two equivalent NaO6 octahedra, corners with two equivalent SnO6 octahedra, and corners with four equivalent SiO4 tetrahedra. The corner-sharing octahedra tilt angles range from 52–68°. There are a spread of Na–O bond distances ranging from 2.49–2.52 Å. Sn is bonded to six O atoms to form SnO6 octahedra that share corners with two equivalent NaO5 square pyramids, corners with six SiO4 tetrahedra, and edges with two equivalent NaO6 octahedra. There are a spread of Sn–O bond distances ranging from 2.06–2.09 Å. There are two inequivalent Si sites. In the first Si site, Si is bonded to four O atoms to form SiO4 tetrahedra that share a cornercorner with one NaO6 octahedra, corners with two equivalent SnO6 octahedra, corners with two equivalent NaO5 square pyramids, and corners with two SiO4 tetrahedra. The corner-sharing octahedra tilt angles range from 49–59°. There is two shorter (1.62 Å) and two longer (1.65 Å) Si–O bond length. In the second Si site, Si is bonded to four O atoms to form SiO4 tetrahedra that share corners with two equivalent SnO6 octahedra, corners with two equivalent SiO4 tetrahedra, and an edgeedge with one NaO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There is two shorter (1.63 Å) and two longer (1.64 Å) Si–O bond length. There are six inequivalent O sites. In the first O site, O is bonded in a 3-coordinate geometry to one Na, one Sn, and one Si atom. In the second O site, O is bonded in a bent 150 degrees geometry to two Si atoms. In the third O site, O is bonded in a distorted trigonal planar geometry to one Na and two equivalent Si atoms. In the fourth O site, O is bonded in a bent 120 degrees geometry to two Na atoms. In the fifth O site, O is bonded in a distorted trigonal planar geometry to one Na, one Sn, and one Si atom. In the sixth O site, O is bonded in a 3-coordinate geometry to one Na, one Sn, and one Si atom.

36 MATERIALS SCIENCE↗

Materials Data on Na3MnO4 by Materials Project

Na3MnO4 crystallizes in the cubic P2_13 space group. The structure is three-dimensional. there are three inequivalent Na sites. In the first Na site, Na is bonded in a distorted T-shaped geometry to three equivalent O atoms. All Na–O bond lengths are 2.33 Å. In the second Na site, Na is bonded in a 4-coordinate geometry to four O atoms. There are one shorter (2.21 Å) and three longer (2.39 Å) Na–O bond lengths. In the third Na site, Na is bonded in a trigonal planar geometry to three equivalent O atoms. All Na–O bond lengths are 2.34 Å. Mn is bonded in a tetrahedral geometry to four O atoms. There is one shorter (1.69 Å) and three longer (1.73 Å) Mn–O bond length. There are two inequivalent O sites. In the first O site, O is bonded in a linear geometry to one Na and one Mn atom. In the second O site, O is bonded in a 4-coordinate geometry to three Na and one Mn atom.

36 MATERIALS SCIENCE↗

Materials Data on NaB5H8O13 by Materials Project

NaB5H8O13 crystallizes in the monoclinic C2/c space group. The structure is one-dimensional and consists of four NaB5H8O13 ribbons oriented in the (1, 0, 1) direction. there are two inequivalent Na sites. In the first Na site, Na is bonded in a 4-coordinate geometry to four O atoms. There are two shorter (2.31 Å) and two longer (2.32 Å) Na–O bond lengths. In the second Na site, Na is bonded in a distorted octahedral geometry to six O atoms. There are a spread of Na–O bond distances ranging from 2.34–2.44 Å. There are five inequivalent B sites. In the first B site, B is bonded in a tetrahedral geometry to four O atoms. There are a spread of B–O bond distances ranging from 1.47–1.50 Å. In the second B site, B is bonded in a trigonal planar geometry to three O atoms. There are a spread of B–O bond distances ranging from 1.36–1.39 Å. In the third B site, B is bonded in a trigonal planar geometry to three O atoms. There are a spread of B–O bond distances ranging from 1.37–1.40 Å. In the fourth B site, B is bonded in a trigonal planar geometry to three O atoms. There are a spread of B–O bond distances ranging from 1.37–1.39 Å. In the fifth B site, B is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.36 Å) and two longer (1.38 Å) B–O bond length. There are eight inequivalent H sites. In the first H site, H is bonded in a distorted single-bond geometry to one O atom. The H–O bond length is 1.01 Å. In the second H site, H is bonded in a distorted single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the third H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. In the fourth H site, H is bonded in a distorted single-bond geometry to one O atom. The H–O bond length is 1.01 Å. In the fifth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. In the sixth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. In the seventh H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. In the eighth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. There are thirteen inequivalent O sites. In the first O site, O is bonded in a distorted water-like geometry to one Na and one B atom. In the second O site, O is bonded in a bent 120 degrees geometry to two B atoms. In the third O site, O is bonded in a bent 120 degrees geometry to one B and one H atom. In the fourth O site, O is bonded in a bent 120 degrees geometry to one B and one H atom. In the fifth O site, O is bonded in a bent 120 degrees geometry to two B atoms. In the sixth O site, O is bonded in a distorted bent 120 degrees geometry to one Na and one B atom. In the seventh O site, O is bonded in a distorted water-like geometry to one Na and two H atoms. In the eighth O site, O is bonded in a distorted water-like geometry to one Na and two H atoms. In the ninth O site, O is bonded in a distorted water-like geometry to one Na and two H atoms. In the tenth O site, O is bonded in a bent 120 degrees geometry to two B atoms. In the eleventh O site, O is bonded in a bent 120 degrees geometry to two B atoms. In the twelfth O site, O is bonded in a bent 120 degrees geometry to two B atoms. In the thirteenth O site, O is bonded in a bent 120 degrees geometry to two B atoms.

36 MATERIALS SCIENCE↗

Materials Data on Na3Eu by Materials Project

Na3Eu 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 in a body-centered cubic geometry to four equivalent Na and four equivalent Eu atoms. All Na–Na bond lengths are 3.74 Å. All Na–Eu bond lengths are 3.74 Å. In the second Na site, Na is bonded in a distorted body-centered cubic geometry to eight equivalent Na and six equivalent Eu atoms. All Na–Eu bond lengths are 4.32 Å. Eu is bonded in a body-centered cubic geometry to fourteen Na atoms.

36 MATERIALS SCIENCE↗

Materials Data on Na2FePCO7 by Materials Project

Na2FeCPO7 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are twelve inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Na–O bond distances ranging from 2.40–2.79 Å. In the second Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Na–O bond distances ranging from 2.38–2.80 Å. In the third Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Na–O bond distances ranging from 2.39–2.89 Å. In the fourth Na1+ site, Na1+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Na–O bond distances ranging from 2.25–2.83 Å. In the fifth Na1+ site, Na1+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Na–O bond distances ranging from 2.25–2.82 Å. In the sixth Na1+ site, Na1+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Na–O bond distances ranging from 2.27–2.81 Å. In the seventh Na1+ site, Na1+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Na–O bond distances ranging from 2.24–2.85 Å. In the eighth Na1+ site, Na1+ is bonded to seven O2- atoms to form distorted NaO7 pentagonal bipyramids that share a cornercorner with one FeO6 octahedra, corners with two equivalent NaO7 pentagonal bipyramids, corners with two PO4 tetrahedra, an edgeedge with one FeO6 octahedra, edges with two equivalent NaO6 octahedra, an edgeedge with one PO4 tetrahedra, and a faceface with one FeO6 octahedra. The corner-sharing octahedral tilt angles are 66°. There are a spread of Na–O bond distances ranging from 2.30–2.80 Å. In the ninth Na1+ site, Na1+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Na–O bond distances ranging from 2.25–2.83 Å. In the tenth Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Na–O bond distances ranging from 2.37–2.81 Å. In the eleventh Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Na–O bond distances ranging from 2.39–2.80 Å. In the twelfth Na1+ site, Na1+ is bonded to six O2- atoms to form distorted NaO6 octahedra that share corners with two equivalent NaO6 octahedra, corners with four FeO6 octahedra, edges with two equivalent NaO7 pentagonal bipyramids, and an edgeedge with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 0–56°. There are a spread of Na–O bond distances ranging from 2.28–2.83 Å. There are six inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.97–2.13 Å. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.98–2.13 Å. In the third Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent NaO6 octahedra, a cornercorner with one NaO7 pentagonal bipyramid, and corners with four PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 0–18°. There are a spread of Fe–O bond distances ranging from 1.96–2.17 Å. In the fourth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one NaO6 octahedra, corners with four PO4 tetrahedra, an edgeedge with one NaO7 pentagonal bipyramid, and a faceface with one NaO7 pentagonal bipyramid. The corner-sharing octahedral tilt angles are 56°. There are a spread of Fe–O bond distances ranging from 1.96–2.15 Å. In the fifth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.98–2.14 Å. In the sixth Fe3+ site, Fe3+ is bonded to six O2- atoms to form distorted FeO6 octahedra that share a cornercorner with one NaO6 octahedra and corners with four PO4 tetrahedra. The corner-sharing octahedral tilt angles are 55°. There are a spread of Fe–O bond distances ranging from 1.90–2.15 Å. There are six inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.27–1.32 Å. In the second C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.27–1.32 Å. In the third C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.29 Å) and two longer (1.30 Å) C–O bond length. In the fourth C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.27–1.32 Å. In the fifth C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.27–1.32 Å. In the sixth C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.25 Å) and two longer (1.33 Å) C–O bond length. There are six inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 37–41°. There are a spread of P–O bond distances ranging from 1.53–1.57 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 34–43°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. In the third P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with four FeO6 octahedra and a cornercorner with one NaO7 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 33–42°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. In the fourth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 34–43°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. In the fifth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with four FeO6 octahedra, a cornercorner with one NaO7 pentagonal bipyramid, an edgeedge with one NaO6 octahedra, and an edgeedge with one NaO7 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 31–46°. There are a spread of P–O bond distances ranging from 1.53–1.57 Å. In the sixth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 34–45°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. There are forty-two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to three Na1+ and one C4+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to three Na1+ and one C4+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Na1+ and one C4+ atom. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to two Na1+, one Fe3+, and one C4+ atom. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to two Na1+, one Fe3+, and one C4+ atom. In the sixth O2- site, O2- is bonded in a distorted T-shaped geometry to one Na1+, one Fe3+, and one C4+ atom. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to two Na1+, one Fe3+, and one C4+ atom. In the eighth O2- site, O2- is bonded in a 1-coordinate geometry to two Na1+, one Fe3+, and one C4+ atom. In the ninth O2- site, O2- is bonded in a distorted T-shaped geometry to one Na1+, one Fe3+, and one C4+ atom. In the tenth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Fe3+, and one P5+ atom. In the eleventh O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Fe3+, and one P5+ atom. In the twelfth O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+, one Fe3+, and one P5+ atom. In the thirteenth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Fe3+, and one P5+ atom. In the fourteenth O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+, one Fe3+, and one P5+ atom. In the fifteenth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Fe3+, and one P5+ atom. In the sixteenth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Fe3+, and one P5+ atom. In the seventeenth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Fe3+, and one P5+ atom. In the eighteenth O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe3+ and one P5+ atom. In the nineteenth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Fe3+, and one P5+ atom. In the twentieth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Fe3+, and one P5+ atom. In the twenty-first O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe3+ and one P5+ atom. In the twenty-second O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Fe3+, and one P5+ atom. In the twenty-third O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Fe3+, and one P5+ atom. In the twenty-fourth O2- site, O2- is bonded in a 4-coordinate geometry to two Na1+, one Fe3+, and one P5+ atom. In the twenty-fifth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Fe3+, and one P5+ atom. In the twenty-sixth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two Na1+, one Fe3+, and one P5+ atom. In the twenty-seventh O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Fe3+, and one P5+ atom. In the twenty-eighth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Fe3+, and one P5+ atom. In the twenty-ninth O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+, one Fe3+, and one P5+ atom. In the thirtieth O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+, one Fe3+, and one P5+ atom. In the thirty-first O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Fe3+, and one P5+ atom. In the thirty-second O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+, one Fe3+, and one P5+ atom. In the thirty-third O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+, one Fe3+, and one P5+ atom. In the thirty-fourth O2- site, O2- is bonded in a 4-coordinate geometry to two Na1+, one Fe3+, and one C4+ atom. In the thirty-fifth O2- site, O2- is bonded in a 1-coordinate geometry to two Na1+, one Fe3+, and one C4+ atom. In the thirty-sixth O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+, one Fe3+, and one C4+ atom. In the thirty-seventh O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two Na1+, one Fe3+, and one C4+ atom. In the thirty-eighth O2- site, O2- is bonded in a 1-coordinate geometry to two Na1+, one Fe3+, and one C4+ atom. In the thirty-ninth O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+, one Fe3+, and one C4+ atom. In the fortieth O2- site, O2- is bonded in a 4-coordinate geometry to three Na1+ and one C4+ atom. In the forty-first O2- site, O2- is bonded in a 4-coordinate geometry to three Na1+ and one C4+ atom. In the forty-second O2- site, O2- is bonded in a 5-coordinate geometry to four Na1+ and one C4+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Na5Nd4Si4O17 by Materials Project

Na5Nd4Si4O17 crystallizes in the tetragonal I-4 space group. The structure is three-dimensional. there are two inequivalent Na sites. In the first Na site, Na is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Na–O bond distances ranging from 2.46–2.95 Å. In the second Na site, Na is bonded in a 10-coordinate geometry to ten O atoms. There are a spread of Na–O bond distances ranging from 2.67–2.93 Å. Nd is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of Nd–O bond distances ranging from 2.37–2.65 Å. Si is bonded in a tetrahedral geometry to four O atoms. There is two shorter (1.64 Å) and two longer (1.65 Å) Si–O bond length. There are five inequivalent O sites. In the first O site, O is bonded in a 1-coordinate geometry to one Na, two equivalent Nd, and one Si atom. In the second O site, O is bonded in a 1-coordinate geometry to two Na, two equivalent Nd, and one Si atom. In the third O site, O is bonded to two equivalent Na and four equivalent Nd atoms to form corner-sharing ONa2Nd4 octahedra. The corner-sharing octahedral tilt angles are 0°. In the fourth O site, O is bonded in a 1-coordinate geometry to two Na, two equivalent Nd, and one Si atom. In the fifth O site, O is bonded in a 1-coordinate geometry to four equivalent Na, one Nd, and one Si atom.

36 MATERIALS SCIENCE↗

Materials Data on Na3Au by Materials Project

Na3Au 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 Au atoms to form a mixture of distorted face, edge, and corner-sharing NaNa4Au4 tetrahedra. All Na–Na bond lengths are 3.19 Å. All Na–Au bond lengths are 3.19 Å. In the second Na site, Na is bonded in a 8-coordinate geometry to eight equivalent Na and six equivalent Au atoms. All Na–Au bond lengths are 3.68 Å. Au is bonded in a body-centered cubic geometry to fourteen Na atoms.

36 MATERIALS SCIENCE↗

Materials Data on Na3Zn by Materials Project

Na3Zn 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 Zn atoms to form distorted NaNa8Zn4 cuboctahedra that share corners with twelve equivalent NaNa8Zn4 cuboctahedra, edges with eight equivalent NaNa8Zn4 cuboctahedra, edges with eight equivalent ZnNa12 cuboctahedra, faces with four equivalent ZnNa12 cuboctahedra, and faces with ten equivalent NaNa8Zn4 cuboctahedra. There are four shorter (3.41 Å) and four longer (3.48 Å) Na–Na bond lengths. All Na–Zn bond lengths are 3.48 Å. In the second Na site, Na is bonded in a distorted square co-planar geometry to eight equivalent Na and four equivalent Zn atoms. All Na–Zn bond lengths are 3.41 Å. Zn is bonded to twelve Na atoms to form ZnNa12 cuboctahedra that share corners with four equivalent ZnNa12 cuboctahedra, edges with eight equivalent ZnNa12 cuboctahedra, edges with sixteen equivalent NaNa8Zn4 cuboctahedra, faces with four equivalent ZnNa12 cuboctahedra, and faces with eight equivalent NaNa8Zn4 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on Na11B21(BrO18)2 by Materials Project

Na11B21(O18Br)2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are six inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 7-coordinate geometry to six O2- and one Br1- atom. There are a spread of Na–O bond distances ranging from 2.34–2.60 Å. The Na–Br bond length is 3.46 Å. In the second Na1+ site, Na1+ is bonded in a 2-coordinate geometry to seven O2- and one Br1- atom. There are a spread of Na–O bond distances ranging from 2.28–3.17 Å. The Na–Br bond length is 3.32 Å. In the third Na1+ site, Na1+ is bonded in a 7-coordinate geometry to five O2- and two equivalent Br1- atoms. There are a spread of Na–O bond distances ranging from 2.29–3.01 Å. There are one shorter (2.94 Å) and one longer (3.26 Å) Na–Br bond lengths. In the fourth Na1+ site, Na1+ is bonded in a 6-coordinate geometry to five O2- and one Br1- atom. There are a spread of Na–O bond distances ranging from 2.24–2.94 Å. The Na–Br bond length is 2.89 Å. In the fifth Na1+ site, Na1+ is bonded in a 7-coordinate geometry to six O2- and one Br1- atom. There are a spread of Na–O bond distances ranging from 2.38–2.78 Å. The Na–Br bond length is 3.13 Å. In the sixth Na1+ site, Na1+ is bonded in a 6-coordinate geometry to four O2- and two equivalent Br1- atoms. There are two shorter (2.32 Å) and two longer (2.36 Å) Na–O bond lengths. Both Na–Br bond lengths are 3.35 Å. There are eleven inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of B–O bond distances ranging from 1.44–1.50 Å. In the second B3+ site, B3+ is bonded to four O2- atoms to form corner-sharing BO4 tetrahedra. There are a spread of B–O bond distances ranging from 1.44–1.52 Å. In the third B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of B–O bond distances ranging from 1.36–1.41 Å. In the fourth B3+ site, B3+ is bonded to four O2- atoms to form corner-sharing BO4 tetrahedra. There are a spread of B–O bond distances ranging from 1.46–1.50 Å. In the fifth B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of B–O bond distances ranging from 1.36–1.40 Å. In the sixth B3+ site, B3+ is bonded to four O2- atoms to form corner-sharing BO4 tetrahedra. There is two shorter (1.45 Å) and two longer (1.53 Å) B–O bond length. In the seventh B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of B–O bond distances ranging from 1.37–1.40 Å. In the eighth B3+ site, B3+ is bonded to four O2- atoms to form corner-sharing BO4 tetrahedra. There are a spread of B–O bond distances ranging from 1.45–1.53 Å. In the ninth B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.37 Å) and one longer (1.39 Å) B–O bond length. In the tenth B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.37 Å) and one longer (1.39 Å) B–O bond length. In the eleventh B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of B–O bond distances ranging from 1.36–1.40 Å. There are nineteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to two equivalent B3+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to one Na1+ and two B3+ atoms. In the third O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two Na1+ and two B3+ atoms. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+ and two B3+ atoms. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+ and two B3+ atoms. In the sixth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two equivalent Na1+ and two equivalent B3+ atoms. In the seventh O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Na1+ and two B3+ atoms. In the eighth O2- site, O2- is bonded in a 2-coordinate geometry to two Na1+ and two B3+ atoms. In the ninth O2- site, O2- is bonded in a 2-coordinate geometry to two Na1+ and two B3+ atoms. In the tenth O2- site, O2- is bonded in a 2-coordinate geometry to two Na1+ and two B3+ atoms. In the eleventh O2- site, O2- is bonded in a bent 120 degrees geometry to three Na1+ and two B3+ atoms. In the twelfth O2- site, O2- is bonded in a 2-coordinate geometry to two Na1+ and two B3+ atoms. In the thirteenth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Na1+ and two B3+ atoms. In the fourteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Na1+ and two B3+ atoms. In the fifteenth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Na1+ and two B3+ atoms. In the sixteenth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Na1+ and two B3+ atoms. In the seventeenth O2- site, O2- is bonded in a bent 120 degrees geometry to one Na1+ and two B3+ atoms. In the eighteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Na1+ and two B3+ atoms. In the nineteenth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+ and two B3+ atoms. Br1- is bonded in a 7-coordinate geometry to seven Na1+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Na3Ce by Materials Project

Na3Ce 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 in a body-centered cubic geometry to four equivalent Na and four equivalent Ce atoms. All Na–Na bond lengths are 3.68 Å. All Na–Ce bond lengths are 3.68 Å. In the second Na site, Na is bonded in a 8-coordinate geometry to eight equivalent Na and six equivalent Ce atoms. All Na–Ce bond lengths are 4.25 Å. Ce is bonded in a distorted body-centered cubic geometry to fourteen Na atoms.

36 MATERIALS SCIENCE↗

A General Strategy for Batch Development of High-Performance and Cost-Effective Sodium Layered Cathodes

High-performance and low-cost transition metal (TM) layered oxides using earth abundant elements are promising cathodes for Na-ion batteries. However, it is challenging to obtain desired materials because the large Na size, different Na occupations and various layer stacking sequences multiply the complication in determining the structure of a given composition and exacerbate uncertainty to the structure-property correlation. In this work, we use the attainment of desired NaxMnyNiZTM1-y-zO2-based cathode materials as an example to demonstrate a general roadmap for batch development of sodium layered cathodes towards practical applications. A synthesis phase diagram of NaxMnyNi1-yO2 was created for pre-screening and rational selection of the platform material of P2/O3-structured Na0.85Mn0.6Ni0.4O2. Cationic potential was leveraged in elemental substitution to further promote the material structural stability and electrochemical performance. Several cost-effective O3 and P2/O3 hybrid cathode materials have been obtained, all of which demonstrate excellent performance. In particular, the Na0.85Mn0.5Ni0.4Ti0.1O2 delivers a high specific capacity of ~130 mAh/g between 2-4 V and 91% retention after 500 cycles. The work discovers multiple materials as high-performance and cost-effective Na-ion battery cathodes and offers critical guidance to the rational design of future layered cathode materials.

Xiao, Biwei↗

Synthesis of model sodium sulfide films

We report the direct deposition of model sodium sulfide films by RF magnetron sputtering from Na 2 S and Na 2 S 2 deposition targets. Analytical characterization and electrochemical cycling indicate that the deposited films are amorphous with stoichiometries that correspond to Na 2 S 3 and Na 2 S 2 formed from the Na 2 S and Na 2 S 2 targets, respectively. We propose that the loss of Na in the case of the Na 2 S target is due to preferential sputtering of Na resulting from the higher energy required to break the Na–S bonds in Na 2 S. Here, the development of thin film sodium sulfides opens a new route to understanding their fundamental properties, such as Na + transport, conductivity, and reactivity.

preferential sputtering↗

Materials Data on Na3Hg2 by Materials Project

Na3Hg2 crystallizes in the tetragonal P4_2/mnm space group. The structure is three-dimensional. there are three inequivalent Na sites. In the first Na site, Na is bonded in a 6-coordinate geometry to six equivalent Hg atoms. There are two shorter (3.16 Å) and four longer (3.30 Å) Na–Hg bond lengths. In the second Na site, Na is bonded in a distorted square co-planar geometry to four equivalent Hg atoms. All Na–Hg bond lengths are 3.40 Å. In the third Na site, Na is bonded in a 6-coordinate geometry to six equivalent Hg atoms. There are two shorter (3.19 Å) and four longer (3.34 Å) Na–Hg bond lengths. Hg is bonded in a 10-coordinate geometry to eight Na and two equivalent Hg atoms. Both Hg–Hg bond lengths are 3.07 Å.

36 MATERIALS SCIENCE↗

Materials Data on Na3Hg by Materials Project

Na3Hg is alpha bismuth trifluoride structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. there are two inequivalent Na sites. In the first Na site, Na is bonded in a body-centered cubic geometry to eight equivalent Na atoms. There are six shorter (3.35 Å) and two longer (3.38 Å) Na–Na bond lengths. In the second Na site, Na is bonded to four equivalent Na and four equivalent Hg atoms to form a mixture of distorted edge, face, and corner-sharing NaNa4Hg4 tetrahedra. There are one shorter (3.29 Å) and three longer (3.38 Å) Na–Hg bond lengths. Hg is bonded in a body-centered cubic geometry to eight equivalent Na atoms.

36 MATERIALS SCIENCE↗