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Materials Data on Bi3Sb(WO6)2 by Materials Project

Bi3Sb(WO6)2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are two inequivalent W6+ sites. In the first W6+ site, W6+ is bonded to six O2- atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedra tilt angles range from 18–22°. There are a spread of W–O bond distances ranging from 1.87–2.08 Å. In the second W6+ site, W6+ is bonded to six O2- atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedra tilt angles range from 18–22°. There are a spread of W–O bond distances ranging from 1.86–2.08 Å. There are three 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 2.21–2.60 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 2.22–2.71 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 2.19–2.63 Å. Sb3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Sb–O bond distances ranging from 2.06–2.62 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one W6+ and two Bi3+ atoms. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one W6+, one Bi3+, and one Sb3+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one W6+ and two Bi3+ atoms. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one W6+, one Bi3+, and one Sb3+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two W6+ atoms. In the sixth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two W6+ atoms. In the seventh O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two W6+ atoms. In the eighth O2- site, O2- is bonded in a bent 150 degrees geometry to two W6+ atoms. In the ninth O2- site, O2- is bonded to three Bi3+ and one Sb3+ atom to form a mixture of distorted edge and corner-sharing OBi3Sb tetrahedra. In the tenth O2- site, O2- is bonded to three Bi3+ and one Sb3+ atom to form a mixture of distorted edge and corner-sharing OBi3Sb tetrahedra. In the eleventh O2- site, O2- is bonded in a 4-coordinate geometry to three Bi3+ and one Sb3+ atom. In the twelfth O2- site, O2- is bonded to three Bi3+ and one Sb3+ atom to form distorted edge-sharing OBi3Sb tetrahedra.

36 MATERIALS SCIENCE↗

Materials Data on Bi3Sb by Materials Project

BiBi2Sb is Molybdenite-like structured and crystallizes in the trigonal R3m space group. The structure is two-dimensional and consists of three bismuth molecules and three Bi2Sb sheets oriented in the (0, 0, 1) direction. In each Bi2Sb sheet, there are two inequivalent Bi1+ sites. In the first Bi1+ site, Bi1+ is bonded in a distorted T-shaped geometry to three equivalent Sb3- atoms. All Bi–Sb bond lengths are 3.04 Å. In the second Bi1+ site, Bi1+ is bonded in a 3-coordinate geometry to three equivalent Sb3- atoms. All Bi–Sb bond lengths are 3.52 Å. Sb3- is bonded to six Bi1+ atoms to form distorted edge-sharing SbBi6 octahedra.

36 MATERIALS SCIENCE↗