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DOE OSTI2020

Materials Data on Cs2WBr6 by Materials Project

Cs2WBr6 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Cs1+ is bonded to twelve equivalent Br1- atoms to form CsBr12 cuboctahedra that share corners with twelve equivalent CsBr12 cuboctahedra, faces with six equivalent CsBr12 cuboctahedra, and faces with four equivalent WBr6 octahedra. All Cs–Br bond lengths are 3.94 Å. W4+ is bonded to six equivalent Br1- atoms to form WBr6 octahedra that share faces with eight equivalent CsBr12 cuboctahedra. All W–Br bond lengths are 2.56 Å. Br1- is bonded in a distorted single-bond geometry to four equivalent Cs1+ and one W4+ atom.

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Materials Data on Ti(AlBr4)2 by Materials Project

Ti(AlBr4)2 crystallizes in the monoclinic C2/c space group. The structure is one-dimensional and consists of two Ti(AlBr4)2 ribbons oriented in the (0, 0, 1) direction. Ti2+ is bonded to six Br1- atoms to form TiBr6 octahedra that share corners with two equivalent AlBr4 tetrahedra and edges with two equivalent AlBr4 tetrahedra. There are a spread of Ti–Br bond distances ranging from 2.71–2.73 Å. Al3+ is bonded to four Br1- atoms to form AlBr4 tetrahedra that share a cornercorner with one TiBr6 octahedra and an edgeedge with one TiBr6 octahedra. The corner-sharing octahedral tilt angles are 56°. There are a spread of Al–Br bond distances ranging from 2.27–2.38 Å. There are four inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a single-bond geometry to one Al3+ atom. In the second Br1- site, Br1- is bonded in an L-shaped geometry to one Ti2+ and one Al3+ atom. In the third Br1- site, Br1- is bonded in a bent 120 degrees geometry to one Ti2+ and one Al3+ atom. In the fourth Br1- site, Br1- is bonded in an L-shaped geometry to one Ti2+ and one Al3+ atom.

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Materials Data on CsCdBr3 by Materials Project

CsCdBr3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Cs1+ is bonded to twelve equivalent Br1- atoms to form CsBr12 cuboctahedra that share corners with six equivalent CsBr12 cuboctahedra, corners with six equivalent CdBr6 octahedra, faces with eight equivalent CsBr12 cuboctahedra, and faces with six equivalent CdBr6 octahedra. The corner-sharing octahedral tilt angles are 18°. There are six shorter (3.94 Å) and six longer (4.16 Å) Cs–Br bond lengths. Cd2+ is bonded to six equivalent Br1- atoms to form CdBr6 octahedra that share corners with six equivalent CsBr12 cuboctahedra, faces with six equivalent CsBr12 cuboctahedra, and faces with two equivalent CdBr6 octahedra. All Cd–Br bond lengths are 2.82 Å. Br1- is bonded in a 6-coordinate geometry to four equivalent Cs1+ and two equivalent Cd2+ atoms.

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Materials Data on Cu3As4H18C8Br3(NO2)2 by Materials Project

(CH3)2Cu3C6As4H12Br3(NO2)2 crystallizes in the monoclinic C2/c space group. The structure is two-dimensional and consists of eight methane molecules and two Cu3C6As4H12Br3(NO2)2 sheets oriented in the (0, 1, 0) direction. In each Cu3C6As4H12Br3(NO2)2 sheet, there are two inequivalent Cu1+ sites. In the first Cu1+ site, Cu1+ is bonded to two equivalent As3- and two equivalent Br1- atoms to form corner-sharing CuAs2Br2 tetrahedra. Both Cu–As bond lengths are 2.38 Å. Both Cu–Br bond lengths are 2.48 Å. In the second Cu1+ site, Cu1+ is bonded to one As3-, one N3-, and two Br1- atoms to form distorted corner-sharing CuAsBr2N tetrahedra. The Cu–As bond length is 2.35 Å. The Cu–N bond length is 1.91 Å. There are one shorter (2.51 Å) and one longer (2.54 Å) Cu–Br bond lengths. There are three inequivalent C1+ sites. In the first C1+ site, C1+ is bonded in a distorted trigonal non-coplanar geometry to one As3- and three H1+ atoms. The C–As bond length is 1.96 Å. There is one shorter (1.09 Å) and two longer (1.10 Å) C–H bond length. In the second C1+ site, C1+ is bonded in a distorted trigonal non-coplanar geometry to one As3- and three H1+ atoms. The C–As bond length is 1.95 Å. There is one shorter (1.09 Å) and two longer (1.10 Å) C–H bond length. In the third C1+ site, C1+ is bonded in a single-bond geometry to one N3- atom. The C–N bond length is 1.17 Å. There are two inequivalent As3- sites. In the first As3- site, As3- is bonded in a 4-coordinate geometry to one Cu1+, one C1+, and two O2- atoms. There is one shorter (1.82 Å) and one longer (1.83 Å) As–O bond length. In the second As3- site, As3- is bonded in a 4-coordinate geometry to one Cu1+, one C1+, and two O2- atoms. There is one shorter (1.83 Å) and one longer (1.84 Å) As–O bond length. N3- is bonded in a linear geometry to one Cu1+ and one C1+ atom. There are six inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one C1+ atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one C1+ atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one C1+ atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one C1+ atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one C1+ atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one C1+ atom. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to two As3- atoms. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to two As3- atoms. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a bent 150 degrees geometry to two equivalent Cu1+ atoms. In the second Br1- site, Br1- is bonded in a water-like geometry to two Cu1+ atoms.

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Materials Data on Ca2Cu(BrO)2 by Materials Project

Ca2CuBr2O2 crystallizes in the tetragonal I4/mmm space group. The structure is two-dimensional and consists of two Ca2CuBr2O2 sheets oriented in the (0, 0, 1) direction. Ca2+ is bonded in a 8-coordinate geometry to four equivalent O2- and four equivalent Br1- atoms. All Ca–O bond lengths are 2.50 Å. All Ca–Br bond lengths are 3.10 Å. Cu2+ is bonded in a square co-planar geometry to four equivalent O2- and two equivalent Br1- atoms. All Cu–O bond lengths are 1.94 Å. Both Cu–Br bond lengths are 3.01 Å. O2- is bonded to four equivalent Ca2+ and two equivalent Cu2+ atoms to form a mixture of edge, face, and corner-sharing OCa4Cu2 octahedra. The corner-sharing octahedral tilt angles are 0°. Br1- is bonded in a 5-coordinate geometry to four equivalent Ca2+ and one Cu2+ atom.

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Materials Data on Ca3Cu2(BrO2)2 by Materials Project

Ca3Cu2O4Br2 crystallizes in the tetragonal I4/mmm space group. The structure is two-dimensional and consists of two Ca3Cu2O4Br2 sheets oriented in the (0, 0, 1) direction. there are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to four equivalent O2- and four equivalent Br1- atoms. All Ca–O bond lengths are 2.48 Å. All Ca–Br bond lengths are 3.09 Å. In the second Ca2+ site, Ca2+ is bonded in a body-centered cubic geometry to eight equivalent O2- atoms. All Ca–O bond lengths are 2.53 Å. Cu2+ is bonded in a rectangular see-saw-like geometry to four equivalent O2- and one Br1- atom. All Cu–O bond lengths are 1.94 Å. The Cu–Br bond length is 3.02 Å. O2- is bonded to four Ca2+ and two equivalent Cu2+ atoms to form a mixture of edge, face, and corner-sharing OCa4Cu2 octahedra. The corner-sharing octahedra tilt angles range from 0–66°. Br1- is bonded in a 5-coordinate geometry to four equivalent Ca2+ and one Cu2+ atom.

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Materials Data on Sr2Cu(BrO)2 by Materials Project

Sr2CuO2Br2 crystallizes in the tetragonal I4/mmm space group. The structure is two-dimensional and consists of two Sr2CuO2Br2 sheets oriented in the (0, 0, 1) direction. Sr2+ is bonded in a 8-coordinate geometry to four equivalent O2- and four equivalent Br1- atoms. All Sr–O bond lengths are 2.62 Å. All Sr–Br bond lengths are 3.19 Å. Cu2+ is bonded in a square co-planar geometry to four equivalent O2- and two equivalent Br1- atoms. All Cu–O bond lengths are 2.00 Å. Both Cu–Br bond lengths are 3.18 Å. O2- is bonded to four equivalent Sr2+ and two equivalent Cu2+ atoms to form a mixture of edge, face, and corner-sharing OSr4Cu2 octahedra. The corner-sharing octahedral tilt angles are 0°. Br1- is bonded in a 5-coordinate geometry to four equivalent Sr2+ and one Cu2+ atom.

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Materials Data on YbBi2BrO4 by Materials Project

YbBi2O4Br is alpha bismuth trifluoride-derived structured and crystallizes in the tetragonal P4mm space group. The structure is three-dimensional. Yb3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are four shorter (2.41 Å) and four longer (2.42 Å) Yb–O bond lengths. There are two inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 4-coordinate geometry to four equivalent O2- and four equivalent Br1- atoms. All Bi–O bond lengths are 2.22 Å. All Bi–Br bond lengths are 3.56 Å. In the second Bi3+ site, Bi3+ is bonded in a 4-coordinate geometry to four equivalent O2- and four equivalent Br1- atoms. All Bi–O bond lengths are 2.22 Å. All Bi–Br bond lengths are 3.56 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Yb3+ and two equivalent Bi3+ atoms to form a mixture of edge and corner-sharing OYb2Bi2 tetrahedra. In the second O2- site, O2- is bonded to two equivalent Yb3+ and two equivalent Bi3+ atoms to form a mixture of edge and corner-sharing OYb2Bi2 tetrahedra. Br1- is bonded in a body-centered cubic geometry to eight Bi3+ atoms.

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Materials Data on Ca2B5BrO9 by Materials Project

Ca2B5O9Br crystallizes in the orthorhombic Pnn2 space group. The structure is three-dimensional. there are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to six O2- and two Br1- atoms. There are a spread of Ca–O bond distances ranging from 2.40–2.67 Å. There are one shorter (2.93 Å) and one longer (3.10 Å) Ca–Br bond lengths. In the second Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to six O2- and two Br1- atoms. There are a spread of Ca–O bond distances ranging from 2.46–2.95 Å. There are one shorter (2.97 Å) and one longer (3.04 Å) Ca–Br bond lengths. There are five inequivalent B3+ sites. In the first 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 1.45–1.50 Å. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.37 Å) and one longer (1.38 Å) B–O bond length. In the third 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 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 1.47–1.50 Å. In the fifth 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 1.45–1.52 Å. There are nine inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Ca2+ and two B3+ atoms. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Ca2+ and two B3+ atoms. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Ca2+ and two B3+ atoms. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Ca2+ and two B3+ atoms. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to one Ca2+ and two B3+ atoms. In the sixth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Ca2+ and two B3+ atoms. In the seventh O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Ca2+ and two B3+ atoms. In the eighth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Ca2+ and two B3+ atoms. In the ninth O2- site, O2- is bonded in a 2-coordinate geometry to one Ca2+ and two B3+ atoms. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a distorted square co-planar geometry to four Ca2+ atoms. In the second Br1- site, Br1- is bonded in a 4-coordinate geometry to four Ca2+ atoms.

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Materials Data on BaPb2BrF5 by Materials Project

BaPb2BrF5 crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Ba2+ is bonded to twelve F1- atoms to form a mixture of distorted corner and face-sharing BaF12 cuboctahedra. There are eight shorter (2.83 Å) and four longer (3.05 Å) Ba–F bond lengths. There are two inequivalent Pb2+ sites. In the first Pb2+ site, Pb2+ is bonded in a 4-coordinate geometry to four equivalent Br1- and four equivalent F1- atoms. All Pb–Br bond lengths are 3.50 Å. All Pb–F bond lengths are 2.40 Å. In the second Pb2+ site, Pb2+ is bonded in a 5-coordinate geometry to four equivalent Br1- and five F1- atoms. All Pb–Br bond lengths are 3.74 Å. There are one shorter (2.33 Å) and four longer (2.43 Å) Pb–F bond lengths. Br1- is bonded in a 8-coordinate geometry to eight Pb2+ atoms. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted single-bond geometry to four equivalent Ba2+ and one Pb2+ atom. In the second F1- site, F1- is bonded to two equivalent Ba2+ and two Pb2+ atoms to form a mixture of distorted corner and edge-sharing FBa2Pb2 tetrahedra.

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Materials Data on TaBi4BrO8 by Materials Project

TaBi4O8Br crystallizes in the orthorhombic Pna2_1 space group. The structure is three-dimensional. Ta5+ is bonded to six O2- atoms to form corner-sharing TaO6 octahedra. The corner-sharing octahedra tilt angles range from 25–26°. There are a spread of Ta–O bond distances ranging from 1.91–2.14 Å. There are four inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Bi–O bond distances ranging from 2.26–2.88 Å. In the second Bi3+ site, Bi3+ is bonded in a 4-coordinate geometry to four O2- and four equivalent Br1- atoms. There are a spread of Bi–O bond distances ranging from 2.23–2.31 Å. There are a spread of Bi–Br bond distances ranging from 3.48–3.59 Å. In the third Bi3+ site, Bi3+ is bonded in a 4-coordinate geometry to four O2- and four equivalent Br1- atoms. There are a spread of Bi–O bond distances ranging from 2.23–2.32 Å. There are a spread of Bi–Br bond distances ranging from 3.47–3.60 Å. In the fourth Bi3+ site, Bi3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Bi–O bond distances ranging from 2.27–2.84 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded to four Bi3+ atoms to form a mixture of distorted corner and edge-sharing OBi4 tetrahedra. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two equivalent Ta5+ and one Bi3+ atom. In the third O2- site, O2- is bonded to four Bi3+ atoms to form a mixture of distorted corner and edge-sharing OBi4 tetrahedra. In the fourth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Ta5+ and two Bi3+ atoms. In the fifth O2- site, O2- is bonded to four Bi3+ atoms to form a mixture of distorted corner and edge-sharing OBi4 tetrahedra. In the sixth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two equivalent Ta5+ and one Bi3+ atom. In the seventh O2- site, O2- is bonded to four Bi3+ atoms to form a mixture of distorted corner and edge-sharing OBi4 tetrahedra. In the eighth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Ta5+ and two Bi3+ atoms. Br1- is bonded in a distorted body-centered cubic geometry to eight Bi3+ atoms.

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Materials Data on CuH8C2Br3NO by Materials Project

CuCH3OBr3CH3NH2 crystallizes in the triclinic P-1 space group. The structure is one-dimensional and consists of two methylammonium molecules and one CuCH3OBr3 ribbon oriented in the (1, 0, 0) direction. In the CuCH3OBr3 ribbon, Cu2+ is bonded to five Br1- atoms to form edge-sharing CuBr5 square pyramids. There are a spread of Cu–Br bond distances ranging from 2.44–2.91 Å. C1- is bonded in a distorted trigonal non-coplanar geometry to two H1+ and one O2- atom. Both C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- and one Br1- atom. The H–O bond length is 0.99 Å. The H–Br bond length is 2.31 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one C1- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one C1- atom. O2- is bonded in a water-like geometry to one C1- and one H1+ atom. There are three inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in an L-shaped geometry to two equivalent Cu2+ atoms. In the second Br1- site, Br1- is bonded in a 2-coordinate geometry to two equivalent Cu2+ and one H1+ atom. In the third Br1- site, Br1- is bonded in a single-bond geometry to one Cu2+ atom.

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Materials Data on BrN(OF2)2 by Materials Project

NOOBrF4 crystallizes in the orthorhombic Pnma space group. The structure is zero-dimensional and consists of four nitroxyl molecules and four OBrF4 clusters. In each OBrF4 cluster, O2- is bonded in a single-bond geometry to one Br5+ atom. The O–Br bond length is 1.60 Å. Br5+ is bonded in a square pyramidal geometry to one O2- and four F1- atoms. There is two shorter (1.93 Å) and two longer (1.97 Å) Br–F bond length. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Br5+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one Br5+ atom.

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Materials Data on Nd4(SBr2)3 by Materials Project

Nd4(SBr2)3 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are two inequivalent Nd3+ sites. In the first Nd3+ site, Nd3+ is bonded in a 8-coordinate geometry to four S2- and four Br1- atoms. There are a spread of Nd–S bond distances ranging from 2.83–2.88 Å. There are a spread of Nd–Br bond distances ranging from 3.03–3.54 Å. In the second Nd3+ site, Nd3+ is bonded in a 7-coordinate geometry to two equivalent S2- and five Br1- atoms. There are one shorter (2.79 Å) and one longer (2.81 Å) Nd–S bond lengths. There are a spread of Nd–Br bond distances ranging from 2.98–3.22 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded to four Nd3+ atoms to form a mixture of distorted corner and edge-sharing SNd4 tetrahedra. In the second S2- site, S2- is bonded to four equivalent Nd3+ atoms to form a mixture of distorted corner and edge-sharing SNd4 tetrahedra. There are three inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 2-coordinate geometry to three equivalent Nd3+ atoms. In the second Br1- site, Br1- is bonded in a 3-coordinate geometry to three Nd3+ atoms. In the third Br1- site, Br1- is bonded in a 3-coordinate geometry to three equivalent Nd3+ atoms.

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Materials Data on Ba2InBrO3 by Materials Project

Ba2InO3Br crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a 9-coordinate geometry to four equivalent O2- and five equivalent Br1- atoms. All Ba–O bond lengths are 2.77 Å. There are four shorter (3.32 Å) and one longer (3.71 Å) Ba–Br bond lengths. In the second Ba2+ site, Ba2+ is bonded in a 1-coordinate geometry to nine O2- atoms. There are a spread of Ba–O bond distances ranging from 2.59–3.07 Å. In3+ is bonded to five O2- and one Br1- atom to form distorted corner-sharing InBrO5 square pyramids. There are one shorter (2.11 Å) and four longer (2.19 Å) In–O bond lengths. The In–Br bond length is 3.43 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 6-coordinate geometry to four Ba2+ and two equivalent In3+ atoms. In the second O2- site, O2- is bonded to five equivalent Ba2+ and one In3+ atom to form a mixture of distorted edge and corner-sharing OBa5In octahedra. The corner-sharing octahedral tilt angles are 12°. Br1- is bonded in a 6-coordinate geometry to five equivalent Ba2+ and one In3+ atom.

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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.

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Materials Data on Sm3Si2S8Br by Materials Project

Sm3Si2S8Br crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are two inequivalent Sm3+ sites. In the first Sm3+ site, Sm3+ is bonded in a 9-coordinate geometry to eight S2- and one Br1- atom. There are a spread of Sm–S bond distances ranging from 2.89–3.04 Å. The Sm–Br bond length is 3.44 Å. In the second Sm3+ site, Sm3+ is bonded in a 9-coordinate geometry to eight S2- and one Br1- atom. There are a spread of Sm–S bond distances ranging from 2.87–3.39 Å. The Sm–Br bond length is 2.97 Å. Si4+ is bonded in a tetrahedral geometry to four S2- atoms. There are two shorter (2.12 Å) and two longer (2.13 Å) Si–S bond lengths. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a 1-coordinate geometry to three Sm3+ and one Si4+ atom. In the second S2- site, S2- is bonded in a 4-coordinate geometry to three Sm3+ and one Si4+ atom. In the third S2- site, S2- is bonded in a 4-coordinate geometry to three equivalent Sm3+ and one Si4+ atom. In the fourth S2- site, S2- is bonded in a 1-coordinate geometry to three Sm3+ and one Si4+ atom. Br1- is bonded in a 1-coordinate geometry to three Sm3+ atoms.

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Materials Data on Sr2Cu2Te(BrO3)2 by Materials Project

Sr2Cu2Te(O3Br)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Sr2+ is bonded in a 7-coordinate geometry to four O2- and three equivalent Br1- atoms. There are a spread of Sr–O bond distances ranging from 2.50–2.82 Å. There are a spread of Sr–Br bond distances ranging from 3.11–3.21 Å. Cu2+ is bonded in a 6-coordinate geometry to five O2- and one Br1- atom. There are a spread of Cu–O bond distances ranging from 1.96–2.43 Å. The Cu–Br bond length is 3.02 Å. Te6+ is bonded in an octahedral geometry to six O2- atoms. There are a spread of Te–O bond distances ranging from 1.95–1.99 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Sr2+, two equivalent Cu2+, and one Te6+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Sr2+, one Cu2+, and one Te6+ atom. In the third O2- site, O2- is bonded to one Sr2+, two equivalent Cu2+, and one Te6+ atom to form distorted corner-sharing OSrCu2Te trigonal pyramids. Br1- is bonded in a 4-coordinate geometry to three equivalent Sr2+ and one Cu2+ atom.

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