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Materials Data on RbBi3 by Materials Project

RbBi3 is Sodium arsenide structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Rb is bonded in a 11-coordinate geometry to eleven Bi atoms. There are a spread of Rb–Bi bond distances ranging from 3.36–3.71 Å. There are two inequivalent Bi sites. In the first Bi site, Bi is bonded in a 1-coordinate geometry to four equivalent Rb and one Bi atom. The Bi–Bi bond length is 3.16 Å. In the second Bi site, Bi is bonded in a trigonal planar geometry to three equivalent Rb atoms.

36 MATERIALS SCIENCE↗

Materials Data on CeBi3 by Materials Project

CeBi3 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Ce is bonded to twelve Bi atoms to form a mixture of edge, corner, and face-sharing CeBi12 cuboctahedra. There are four shorter (3.32 Å) and eight longer (3.64 Å) Ce–Bi bond lengths. There are two inequivalent Bi sites. In the first Bi site, Bi is bonded in a 12-coordinate geometry to four equivalent Ce and four equivalent Bi atoms. All Bi–Bi bond lengths are 3.32 Å. In the second Bi site, Bi is bonded in a square co-planar geometry to four equivalent Ce atoms.

36 MATERIALS SCIENCE↗

Materials Data on Cs2Bi2Pd by Materials Project

Cs2PdBi2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Cs sites. In the first Cs site, Cs is bonded in a 6-coordinate geometry to six equivalent Bi atoms. There are two shorter (3.98 Å) and four longer (4.39 Å) Cs–Bi bond lengths. In the second Cs site, Cs is bonded in a 8-coordinate geometry to two equivalent Pd and six equivalent Bi atoms. Both Cs–Pd bond lengths are 3.46 Å. There are two shorter (4.01 Å) and four longer (4.14 Å) Cs–Bi bond lengths. Pd is bonded to two equivalent Cs and four equivalent Bi atoms to form distorted face-sharing PdCs2Bi4 octahedra. All Pd–Bi bond lengths are 2.79 Å. Bi is bonded in a 4-coordinate geometry to six Cs, two equivalent Pd, and one Bi atom. The Bi–Bi bond length is 2.99 Å.

36 MATERIALS SCIENCE↗

Materials Data on Bi5(PO5)3 by Materials Project

Bi5(PO5)3 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are ten inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Bi–O bond distances ranging from 2.15–2.44 Å. In the second Bi3+ site, Bi3+ is bonded in a 5-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.11–3.00 Å. In the third Bi3+ site, Bi3+ is bonded in a 5-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.14–3.00 Å. In the fourth Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.21–2.75 Å. In the fifth Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.20–2.75 Å. In the sixth Bi3+ site, Bi3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Bi–O bond distances ranging from 2.25–3.05 Å. In the seventh Bi3+ site, Bi3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Bi–O bond distances ranging from 2.20–2.83 Å. In the eighth Bi3+ site, Bi3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Bi–O bond distances ranging from 2.25–2.80 Å. In the ninth Bi3+ site, Bi3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Bi–O bond distances ranging from 2.30–2.73 Å. In the tenth Bi3+ site, Bi3+ is bonded in a distorted body-centered cubic geometry to eight O2- atoms. There are a spread of Bi–O bond distances ranging from 2.39–2.71 Å. There are six inequivalent P5+ sites. In the first P5+ site, P5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of P–O bond distances ranging from 1.55–1.58 Å. In the second P5+ site, P5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of P–O bond distances ranging from 1.54–1.57 Å. In the third P5+ site, P5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of P–O bond distances ranging from 1.54–1.58 Å. In the fourth P5+ site, P5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of P–O bond distances ranging from 1.55–1.57 Å. In the fifth P5+ site, P5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of P–O bond distances ranging from 1.54–1.58 Å. In the sixth P5+ site, P5+ is bonded in a tetrahedral geometry to four O2- atoms. There is one shorter (1.55 Å) and three longer (1.56 Å) P–O bond length. There are thirty inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to one Bi3+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the ninth O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the tenth O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the eleventh O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the twelfth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Bi3+ and one P5+ atom. In the thirteenth O2- site, O2- is bonded in a distorted single-bond geometry to one Bi3+ and one P5+ atom. In the fourteenth O2- site, O2- is bonded in a distorted single-bond geometry to three Bi3+ and one P5+ atom. In the fifteenth O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the sixteenth O2- site, O2- is bonded in a trigonal planar geometry to three Bi3+ atoms. In the seventeenth O2- site, O2- is bonded in a 4-coordinate geometry to four Bi3+ atoms. In the eighteenth O2- site, O2- is bonded to four Bi3+ atoms to form distorted edge-sharing OBi4 tetrahedra. In the nineteenth O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the twentieth O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the twenty-first O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the twenty-second O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the twenty-third O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the twenty-fourth O2- site, O2- is bonded in a 1-coordinate geometry to two Bi3+ and one P5+ atom. In the twenty-fifth O2- site, O2- is bonded in a 4-coordinate geometry to four Bi3+ atoms. In the twenty-sixth O2- site, O2- is bonded to four Bi3+ atoms to form distorted edge-sharing OBi4 tetrahedra. In the twenty-seventh O2- site, O2- is bonded to four Bi3+ atoms to form distorted edge-sharing OBi4 tetrahedra. In the twenty-eighth O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the twenty-ninth O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the thirtieth O2- site, O2- is bonded in a 1-coordinate geometry to two Bi3+ and one P5+ atom.

36 MATERIALS SCIENCE↗

Materials Data on CeGeBi2 by Materials Project

CeGeBi2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Ce is bonded to four equivalent Ge and eight Bi atoms to form a mixture of corner, edge, and face-sharing CeGe4Bi8 cuboctahedra. All Ce–Ge bond lengths are 3.28 Å. There are four shorter (3.33 Å) and four longer (3.51 Å) Ce–Bi bond lengths. Ge is bonded in a rectangular see-saw-like geometry to four equivalent Ce atoms. There are two inequivalent Bi sites. In the first Bi site, Bi is bonded in a 8-coordinate geometry to four equivalent Ce and four equivalent Bi atoms. All Bi–Bi bond lengths are 3.28 Å. In the second Bi site, Bi is bonded in a distorted square co-planar geometry to four equivalent Ce atoms.

36 MATERIALS SCIENCE↗

Materials Data on BiI3O11 by Materials Project

BiO11I3 crystallizes in the triclinic P-1 space group. The structure is two-dimensional and consists of one BiO11I3 sheet oriented in the (0, 1, 0) direction. Bi is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of Bi–O bond distances ranging from 2.33–2.57 Å. There are eleven inequivalent O sites. In the first O site, O is bonded in a bent 120 degrees geometry to one Bi and one I atom. The O–I bond length is 1.86 Å. In the second O site, O is bonded in a bent 120 degrees geometry to one Bi and one I atom. The O–I bond length is 1.85 Å. In the third O site, O is bonded in a single-bond geometry to one I atom. The O–I bond length is 1.81 Å. In the fourth O site, O is bonded in a bent 120 degrees geometry to one Bi and one I atom. The O–I bond length is 1.86 Å. In the fifth O site, O is bonded in a 1-coordinate geometry to one Bi and one I atom. The O–I bond length is 1.85 Å. In the sixth O site, O is bonded in a 2-coordinate geometry to one Bi and one I atom. The O–I bond length is 1.84 Å. In the seventh O site, O is bonded in a single-bond geometry to one I atom. The O–I bond length is 1.84 Å. In the eighth O site, O is bonded in a 1-coordinate geometry to one Bi and two I atoms. There are one shorter (1.85 Å) and one longer (2.67 Å) O–I bond lengths. In the ninth O site, O is bonded in a bent 120 degrees geometry to one Bi and one I atom. The O–I bond length is 1.85 Å. In the tenth O site, O is bonded in a single-bond geometry to one Bi atom. In the eleventh O site, O is bonded in a single-bond geometry to one I atom. The O–I bond length is 2.78 Å. There are three inequivalent I sites. In the first I site, I is bonded in a distorted trigonal non-coplanar geometry to three O atoms. In the second I site, I is bonded in a 3-coordinate geometry to five O atoms. In the third I site, I is bonded in a 3-coordinate geometry to three O atoms.

36 MATERIALS SCIENCE↗

Materials Data on YBi3 by Materials Project

YBi3 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Y is bonded to twelve Bi atoms to form a mixture of corner, edge, and face-sharing YBi12 cuboctahedra. There are four shorter (3.31 Å) and eight longer (3.62 Å) Y–Bi bond lengths. There are two inequivalent Bi sites. In the first Bi site, Bi is bonded in a 12-coordinate geometry to four equivalent Y and four equivalent Bi atoms. All Bi–Bi bond lengths are 3.31 Å. In the second Bi site, Bi is bonded in a square co-planar geometry to four equivalent Y atoms.

36 MATERIALS SCIENCE↗

Materials Data on RbBi3Se5 by Materials Project

RbBi3Se5 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are three inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Rb–Se bond distances ranging from 3.56–3.85 Å. In the second Rb1+ site, Rb1+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Rb–Se bond distances ranging from 3.55–4.10 Å. In the third Rb1+ site, Rb1+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Rb–Se bond distances ranging from 3.48–3.73 Å. There are ten inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded to six Se2- atoms to form a mixture of edge and corner-sharing BiSe6 octahedra. The corner-sharing octahedral tilt angles are 2°. There are a spread of Bi–Se bond distances ranging from 2.83–3.21 Å. In the second Bi3+ site, Bi3+ is bonded to six Se2- atoms to form a mixture of edge and corner-sharing BiSe6 octahedra. The corner-sharing octahedra tilt angles range from 5–68°. There are a spread of Bi–Se bond distances ranging from 2.85–3.16 Å. In the third Bi3+ site, Bi3+ is bonded to six Se2- atoms to form a mixture of edge and corner-sharing BiSe6 octahedra. The corner-sharing octahedra tilt angles range from 3–5°. There are a spread of Bi–Se bond distances ranging from 2.90–3.06 Å. In the fourth Bi3+ site, Bi3+ is bonded to six Se2- atoms to form a mixture of edge and corner-sharing BiSe6 octahedra. The corner-sharing octahedra tilt angles range from 19–68°. There are a spread of Bi–Se bond distances ranging from 2.87–3.07 Å. In the fifth Bi3+ site, Bi3+ is bonded to six Se2- atoms to form a mixture of edge and corner-sharing BiSe6 octahedra. The corner-sharing octahedra tilt angles range from 2–5°. There are a spread of Bi–Se bond distances ranging from 2.77–3.20 Å. In the sixth Bi3+ site, Bi3+ is bonded to six Se2- atoms to form a mixture of edge and corner-sharing BiSe6 octahedra. The corner-sharing octahedral tilt angles are 3°. There are a spread of Bi–Se bond distances ranging from 2.74–3.30 Å. In the seventh Bi3+ site, Bi3+ is bonded to six Se2- atoms to form a mixture of edge and corner-sharing BiSe6 octahedra. The corner-sharing octahedra tilt angles range from 3–14°. There are a spread of Bi–Se bond distances ranging from 2.83–3.16 Å. In the eighth Bi3+ site, Bi3+ is bonded to six Se2- atoms to form edge-sharing BiSe6 octahedra. There are two shorter (2.97 Å) and four longer (2.98 Å) Bi–Se bond lengths. In the ninth Bi3+ site, Bi3+ is bonded to six Se2- atoms to form a mixture of edge and corner-sharing BiSe6 octahedra. The corner-sharing octahedra tilt angles range from 5–19°. There are a spread of Bi–Se bond distances ranging from 2.82–3.17 Å. In the tenth Bi3+ site, Bi3+ is bonded to six Se2- atoms to form a mixture of edge and corner-sharing BiSe6 octahedra. The corner-sharing octahedral tilt angles are 51°. There are two shorter (2.94 Å) and four longer (2.97 Å) Bi–Se bond lengths. There are fifteen inequivalent Se2- sites. In the first Se2- site, Se2- is bonded to one Rb1+ and four Bi3+ atoms to form SeRbBi4 trigonal bipyramids that share corners with two equivalent SeBi6 octahedra, a cornercorner with one SeRb2Bi3 square pyramid, corners with four SeRb2Bi3 trigonal bipyramids, and edges with five SeRbBi5 octahedra. The corner-sharing octahedral tilt angles are 6°. In the second Se2- site, Se2- is bonded to one Rb1+ and five Bi3+ atoms to form distorted SeRbBi5 octahedra that share a cornercorner with one SeBi6 octahedra, corners with two equivalent SeRb2Bi3 square pyramids, corners with two equivalent SeRbBi4 trigonal bipyramids, edges with four SeRbBi5 octahedra, edges with two equivalent SeRb2Bi3 square pyramids, and edges with three SeRbBi4 trigonal bipyramids. The corner-sharing octahedral tilt angles are 1°. In the third Se2- site, Se2- is bonded in a 5-coordinate geometry to three Rb1+ and two equivalent Bi3+ atoms. In the fourth Se2- site, Se2- is bonded in a 5-coordinate geometry to two equivalent Rb1+ and three Bi3+ atoms. In the fifth Se2- site, Se2- is bonded to two equivalent Rb1+ and three Bi3+ atoms to form SeRb2Bi3 square pyramids that share a cornercorner with one SeBi6 octahedra, corners with two equivalent SeRb2Bi3 square pyramids, corners with four SeRb2Bi3 trigonal bipyramids, edges with two equivalent SeBi6 octahedra, edges with three SeRb2Bi3 square pyramids, and edges with three SeRb2Bi3 trigonal bipyramids. The corner-sharing octahedral tilt angles are 11°. In the sixth Se2- site, Se2- is bonded to six Bi3+ atoms to form SeBi6 octahedra that share a cornercorner with one SeRbBi5 octahedra, corners with two equivalent SeRbBi4 trigonal bipyramids, edges with six SeRbBi5 octahedra, and edges with five SeRbBi4 trigonal bipyramids. The corner-sharing octahedral tilt angles are 1°. In the seventh Se2- site, Se2- is bonded in a 5-coordinate geometry to two equivalent Rb1+ and three Bi3+ atoms. In the eighth Se2- site, Se2- is bonded in a 6-coordinate geometry to four Rb1+ and two equivalent Bi3+ atoms. In the ninth Se2- site, Se2- is bonded to two equivalent Rb1+ and three Bi3+ atoms to form a mixture of distorted edge and corner-sharing SeRb2Bi3 trigonal bipyramids. In the tenth Se2- site, Se2- is bonded in a rectangular see-saw-like geometry to four Bi3+ atoms. In the eleventh Se2- site, Se2- is bonded to two equivalent Rb1+ and three Bi3+ atoms to form SeRb2Bi3 square pyramids that share corners with four SeRb2Bi3 square pyramids, a cornercorner with one SeRbBi4 trigonal bipyramid, edges with two equivalent SeRbBi5 octahedra, and edges with four SeRb2Bi3 square pyramids. In the twelfth Se2- site, Se2- is bonded to two Rb1+ and three Bi3+ atoms to form SeRb2Bi3 trigonal bipyramids that share corners with two equivalent SeBi6 octahedra, a cornercorner with one SeRb2Bi3 square pyramid, corners with six SeRb2Bi3 trigonal bipyramids, edges with three equivalent SeBi6 octahedra, and edges with two equivalent SeRb2Bi3 square pyramids. The corner-sharing octahedral tilt angles are 8°. In the thirteenth Se2- site, Se2- is bonded to two equivalent Rb1+ and three Bi3+ atoms to form distorted SeRb2Bi3 square pyramids that share corners with two equivalent SeRbBi5 octahedra, corners with four SeRb2Bi3 square pyramids, a cornercorner with one SeRb2Bi3 trigonal bipyramid, edges with two equivalent SeBi6 octahedra, and edges with four SeRb2Bi3 square pyramids. The corner-sharing octahedral tilt angles are 52°. In the fourteenth Se2- site, Se2- is bonded to six Bi3+ atoms to form SeBi6 octahedra that share a cornercorner with one SeRb2Bi3 square pyramid, corners with two equivalent SeRb2Bi3 trigonal bipyramids, edges with four equivalent SeBi6 octahedra, edges with four SeRb2Bi3 square pyramids, and edges with three equivalent SeRb2Bi3 trigonal bipyramids. In the fifteenth Se2- site, Se2- is bonded to one Rb1+ and four Bi3+ atoms to form distorted SeRbBi4 trigonal bipyramids that share corners with two equivalent SeRbBi5 octahedra, corners with two equivalent SeRb2Bi3 square pyramids, corners with four SeRb2Bi3 trigonal bipyramids, edges with three SeRbBi5 octahedra, and edges with two equivalent SeRb2Bi3 trigonal bipyramids. The corner-sharing octahedral tilt angles are 11°.

36 MATERIALS SCIENCE↗

Materials Data on MnFe4(BiO3)5 by Materials Project

MnFe4(BiO3)5 is Ilmenite-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are two inequivalent Mn3+ sites. In the first Mn3+ site, Mn3+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six FeO6 octahedra. The corner-sharing octahedra tilt angles range from 26–29°. There are a spread of Mn–O bond distances ranging from 1.96–2.27 Å. In the second Mn3+ site, Mn3+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six FeO6 octahedra. The corner-sharing octahedra tilt angles range from 26–30°. There are a spread of Mn–O bond distances ranging from 1.97–2.26 Å. There are eight inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one MnO6 octahedra and corners with five FeO6 octahedra. The corner-sharing octahedra tilt angles range from 25–29°. There are a spread of Fe–O bond distances ranging from 1.98–2.17 Å. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent MnO6 octahedra and corners with four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 28–30°. There are a spread of Fe–O bond distances ranging from 1.97–2.18 Å. In the third Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent MnO6 octahedra and corners with four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 27–30°. There are a spread of Fe–O bond distances ranging from 1.99–2.14 Å. In the fourth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one MnO6 octahedra and corners with five FeO6 octahedra. The corner-sharing octahedra tilt angles range from 26–28°. There are a spread of Fe–O bond distances ranging from 1.98–2.20 Å. In the fifth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one MnO6 octahedra and corners with five FeO6 octahedra. The corner-sharing octahedra tilt angles range from 26–29°. There are a spread of Fe–O bond distances ranging from 1.99–2.21 Å. In the sixth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one MnO6 octahedra and corners with five FeO6 octahedra. The corner-sharing octahedra tilt angles range from 26–30°. There are a spread of Fe–O bond distances ranging from 1.98–2.19 Å. In the seventh Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent MnO6 octahedra and corners with four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 26–30°. There are a spread of Fe–O bond distances ranging from 1.96–2.17 Å. In the eighth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent MnO6 octahedra and corners with four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 25–29°. There are a spread of Fe–O bond distances ranging from 1.99–2.15 Å. There are ten inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.32–2.56 Å. In the second Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.29–2.53 Å. In the third Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.32–2.50 Å. In the fourth Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.28–2.54 Å. In the fifth Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.32–2.49 Å. In the sixth Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.30–2.52 Å. In the seventh Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.30–2.50 Å. In the eighth Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.32–2.47 Å. In the ninth Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.32–2.53 Å. In the tenth Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.29–2.56 Å. There are thirty inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the second O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the third O2- site, O2- is bonded in a distorted see-saw-like geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the fourth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the fifth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to two Fe3+ and two Bi3+ atoms. In the seventh O2- site, O2- is bonded in a distorted see-saw-like geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the eighth O2- site, O2- is bonded in a 4-coordinate geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the ninth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the tenth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the eleventh O2- site, O2- is bonded in a 4-coordinate geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the twelfth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the thirteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Fe3+ and two Bi3+ atoms. In the fourteenth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the fifteenth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the sixteenth O2- site, O2- is bonded in a 4-coordinate geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the seventeenth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the eighteenth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the nineteenth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the twentieth O2- site, O2- is bonded in a 4-coordinate geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the twenty-first O2- site, O2- is bonded in a distorted tetrahedral geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the twenty-second O2- site, O2- is bonded in a distorted tetrahedral geometry to two Fe3+ and two Bi3+ atoms. In the twenty-third O2- site, O2- is bonded in a distorted see-saw-like geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the twenty-fourth O2- site, O2- is bonded in a distorted tetrahedral geometry to two Fe3+ and two Bi3+ atoms. In the twenty-fifth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the twenty-sixth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the twenty-seventh O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the twenty-eighth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the twenty-ninth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the thirtieth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on PrBi3 by Materials Project

PrBi3 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Pr is bonded to twelve Bi atoms to form a mixture of corner, edge, and face-sharing PrBi12 cuboctahedra. There are four shorter (3.37 Å) and eight longer (3.65 Å) Pr–Bi bond lengths. There are two inequivalent Bi sites. In the first Bi site, Bi is bonded in a 12-coordinate geometry to four equivalent Pr and four equivalent Bi atoms. All Bi–Bi bond lengths are 3.37 Å. In the second Bi site, Bi is bonded in a square co-planar geometry to four equivalent Pr atoms.

36 MATERIALS SCIENCE↗

Topological Bismuth (1 1̅ 0) Facet for Efficient Oxygen Reduction Cathode in Fuel Cells

The performance of proton-exchange membrane fuel cells is strongly dependent on the efficiency of the electrochemical oxygen reduction reaction (ORR). Here, we report both two-dimensional (4 monolayer, ML) and three-dimensional Bi (16 ML) (11̅0) facets deliver a strong correlation between nontrivial topological surface states and low electrochemical overpotential toward ORR. Both topological Bi (11̅0) film and slab have two slightly gapped (9–45 meV) Dirac cones with the invariant Z 2 =1, derived from the parity products for the occupied states at four time-reversal invariant momentum points. By contrast, the Bi (110) film is stabilized as an ordinary insulator due to atomic buckling. The much lower thermodynamic ORR overpotential (η = 0.58 V) and higher H 2 O selectivity by four steps of H + /e – transfer are obtained on the topological Bi (11̅0) surface compared with the nontopological (110) facet (η = 0.84 V). This promotional effect can be attributed to the accumulation of topological surface bands (Bi 6p orbitals) near the Fermi energy, which provide stronger electronic transport channels along the surface Bi–Bi and Bi–O bonds. Finally, a 16 ML Bi (11̅0) slab is also constructed to simulate the topological (11̅0) surface of three-dimensional bulk Bi as a topological crystalline insulator (TCI). Furthermore, the consistent topological properties and slightly lower thermodynamic ORR overpotential (η = 0.53 V) are also observed on the thicker slab.

25 ENERGY STORAGE↗

Topological material in the III–V family: Heteroepitaxial InBi on InAs

InBi ( 0 0 1 ) is formed epitaxially on InAs ( 1 1 1 ) -A by depositing Bi onto an In-rich surface. Angle-resolved photoemission measurements reveal topological electronic surface states, close to the M ¯ high symmetry point. This demonstrates a heteroepitaxial system entirely in the III–V family with topological electronic properties. InBi shows coexistence of Bi and In surface terminations, in contradiction with other III–V materials. For the Bi termination, the study gives a consistent physical picture of the topological surface electronic structure of InBi ( 0 0 1 ) terminated by a Bi bilayer rather than a surface formed by splitting to a Bi monolayer termination. Theoretical calculations based on relativistic density functional theory and the one-step model of photoemission clarify the relationship between the InBi ( 0 0 1 ) surface termination and the topological surface states, supporting a predominant role of the Bi bilayer termination. Furthermore, a tight-binding model based on this Bi bilayer termination with only Bi–Bi hopping terms, and no Bi–In interaction, gives a deeper insight into the spin texture. Published by the American Physical Society 2024

Nicolaï, Laurent (ORCID:0000000277312673)↗

Materials Data on BaBiO3 by Materials Project

BaBiO3 is Orthorhombic Perovskite-like structured and crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Ba is bonded in a 11-coordinate geometry to seven O atoms. There are a spread of Ba–O bond distances ranging from 2.73–3.16 Å. There are two inequivalent Bi sites. In the first Bi site, Bi is bonded to six O atoms to form corner-sharing BiO6 octahedra. The corner-sharing octahedra tilt angles range from 19–24°. There are four shorter (2.31 Å) and two longer (2.32 Å) Bi–O bond lengths. In the second Bi site, Bi is bonded to six O atoms to form corner-sharing BiO6 octahedra. The corner-sharing octahedra tilt angles range from 19–24°. All Bi–O bond lengths are 2.18 Å. There are two inequivalent O sites. In the first O site, O is bonded in a 4-coordinate geometry to two equivalent Ba and two Bi atoms. In the second O site, O is bonded in a 5-coordinate geometry to three equivalent Ba and two Bi atoms.

36 MATERIALS SCIENCE↗

Materials Data on NiBi3 by Materials Project

NiBi3 crystallizes in the orthorhombic Pnma space group. The structure is one-dimensional and consists of two NiBi3 ribbons oriented in the (1, 0, 0) direction. Ni is bonded in a 9-coordinate geometry to two equivalent Ni and seven Bi atoms. Both Ni–Ni bond lengths are 2.65 Å. There are a spread of Ni–Bi bond distances ranging from 2.73–2.79 Å. There are three inequivalent Bi sites. In the first Bi site, Bi is bonded in a single-bond geometry to one Ni atom. In the second Bi site, Bi is bonded in a 3-coordinate geometry to three equivalent Ni atoms. In the third Bi site, Bi is bonded in a 3-coordinate geometry to three equivalent Ni atoms.

36 MATERIALS SCIENCE↗

Materials Data on In5Bi3 by Materials Project

In5Bi3 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are two inequivalent In sites. In the first In site, In is bonded to six Bi atoms to form corner-sharing InBi6 octahedra. The corner-sharing octahedra tilt angles range from 0–44°. There are four shorter (3.21 Å) and two longer (3.37 Å) In–Bi bond lengths. In the second In site, In is bonded in a 5-coordinate geometry to four equivalent In and five Bi atoms. There are a spread of In–In bond distances ranging from 3.35–3.48 Å. There are a spread of In–Bi bond distances ranging from 3.31–3.42 Å. There are two inequivalent Bi sites. In the first Bi site, Bi is bonded in a 10-coordinate geometry to ten In atoms. In the second Bi site, Bi is bonded in a 8-coordinate geometry to eight In atoms.

36 MATERIALS SCIENCE↗

Materials Data on Bi4Se3 by Materials Project

Bi4Se3 is Calaverite-like structured and crystallizes in the trigonal R-3m space group. The structure is two-dimensional and consists of three Bi4Se3 sheets oriented in the (0, 0, 1) direction. there are two inequivalent Bi+1.50+ sites. In the first Bi+1.50+ site, Bi+1.50+ is bonded to six Se2- atoms to form a mixture of edge and corner-sharing BiSe6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are three shorter (2.92 Å) and three longer (3.12 Å) Bi–Se bond lengths. In the second Bi+1.50+ site, Bi+1.50+ is bonded in a 3-coordinate geometry to three equivalent Se2- atoms. All Bi–Se bond lengths are 3.57 Å. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded to six equivalent Bi+1.50+ atoms to form edge-sharing SeBi6 octahedra. In the second Se2- site, Se2- is bonded in a 6-coordinate geometry to six Bi+1.50+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Bi4Te3 by Materials Project

Bi4Te3 is MAX Phase-derived structured and crystallizes in the trigonal R-3m space group. The structure is two-dimensional and consists of three Bi4Te3 sheets oriented in the (0, 0, 1) direction. there are two inequivalent Bi+1.50+ sites. In the first Bi+1.50+ site, Bi+1.50+ is bonded to six Te2- atoms to form a mixture of edge and corner-sharing BiTe6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are three shorter (3.11 Å) and three longer (3.29 Å) Bi–Te bond lengths. In the second Bi+1.50+ site, Bi+1.50+ is bonded in a 3-coordinate geometry to three equivalent Te2- atoms. All Bi–Te bond lengths are 3.66 Å. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded to six equivalent Bi+1.50+ atoms to form a mixture of edge and corner-sharing TeBi6 octahedra. The corner-sharing octahedral tilt angles are 5°. In the second Te2- site, Te2- is bonded to six Bi+1.50+ atoms to form a mixture of distorted edge and corner-sharing TeBi6 octahedra. The corner-sharing octahedral tilt angles are 5°.

36 MATERIALS SCIENCE↗

Materials Data on Mn3(CuBi)4 by Materials Project

Mn3Cu4Bi4 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Mn is bonded in a distorted q6 geometry to four equivalent Cu and six Bi atoms. All Mn–Cu bond lengths are 2.73 Å. There are two shorter (3.01 Å) and four longer (3.04 Å) Mn–Bi bond lengths. Cu is bonded in a 10-coordinate geometry to three equivalent Mn, three equivalent Cu, and four Bi atoms. All Cu–Cu bond lengths are 2.65 Å. There are three shorter (2.82 Å) and one longer (2.93 Å) Cu–Bi bond lengths. There are two inequivalent Bi sites. In the first Bi site, Bi is bonded in a 8-coordinate geometry to four equivalent Mn and four equivalent Cu atoms. In the second Bi site, Bi is bonded in a distorted q6 geometry to six equivalent Mn and four equivalent Cu atoms.

36 MATERIALS SCIENCE↗