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DOE OSTI2020

Materials Data on Ba(BrO3)2 by Materials Project

Ba(BrO3)2 crystallizes in the orthorhombic Fdd2 space group. The structure is three-dimensional. Ba2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Ba–O bond distances ranging from 2.78–3.30 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one Ba2+ and one Br5+ atom. The O–Br bond length is 1.67 Å. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Ba2+ and one Br5+ atom. The O–Br bond length is 1.69 Å. In the third O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Ba2+ and one Br5+ atom. The O–Br bond length is 1.70 Å. Br5+ is bonded in a trigonal non-coplanar geometry to three O2- atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Ba4Br6O by Materials Project

Ba4OBr6 crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a 1-coordinate geometry to one O2- and seven Br1- atoms. The Ba–O bond length is 2.57 Å. There are a spread of Ba–Br bond distances ranging from 3.32–3.59 Å. In the second Ba2+ site, Ba2+ is bonded in a distorted single-bond geometry to one O2- and six Br1- atoms. The Ba–O bond length is 2.56 Å. There are three shorter (3.40 Å) and three longer (3.48 Å) Ba–Br bond lengths. O2- is bonded in a tetrahedral geometry to four Ba2+ atoms. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 4-coordinate geometry to four Ba2+ atoms. In the second Br1- site, Br1- is bonded in a 5-coordinate geometry to five Ba2+ atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Ba2Br2O by Materials Project

Ba2OBr2 crystallizes in the orthorhombic Ibam space group. The structure is three-dimensional. Ba2+ is bonded in a 2-coordinate geometry to two equivalent O2- and five equivalent Br1- atoms. Both Ba–O bond lengths are 2.54 Å. There are a spread of Ba–Br bond distances ranging from 3.37–3.65 Å. O2- is bonded to four equivalent Ba2+ atoms to form distorted edge-sharing OBa4 tetrahedra. Br1- is bonded in a 5-coordinate geometry to five equivalent Ba2+ atoms.

36 MATERIALS SCIENCE↗