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DOE OSTI2020

Materials Data on BaCaO2 by Materials Project

BaCaO2 is Caswellsilverite-like structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Ba2+ is bonded to six O2- atoms to form BaO6 octahedra that share corners with six equivalent BaO6 octahedra, edges with four equivalent BaO6 octahedra, and edges with eight equivalent CaO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (2.65 Å) and four longer (2.66 Å) Ba–O bond lengths. Ca2+ is bonded to six O2- atoms to form CaO6 octahedra that share corners with six equivalent CaO6 octahedra, edges with four equivalent CaO6 octahedra, and edges with eight equivalent BaO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (2.65 Å) and four longer (2.66 Å) Ca–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Ba2+ and two equivalent Ca2+ atoms to form a mixture of corner and edge-sharing OBa4Ca2 octahedra. The corner-sharing octahedral tilt angles are 0°. In the second O2- site, O2- is bonded to two equivalent Ba2+ and four equivalent Ca2+ atoms to form OBa2Ca4 octahedra that share corners with six equivalent OBa2Ca4 octahedra and edges with twelve OBa4Ca2 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ba3WO6 by Materials Project

Ba3WO6 is Orthorhombic Perovskite-like structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are six inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Ba–O bond distances ranging from 2.71–3.31 Å. In the second Ba2+ site, Ba2+ is bonded in a 9-coordinate geometry to seven O2- atoms. There are a spread of Ba–O bond distances ranging from 2.66–3.27 Å. In the third Ba2+ site, Ba2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ba–O bond distances ranging from 2.63–3.23 Å. In the fourth Ba2+ site, Ba2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Ba–O bond distances ranging from 2.70–3.22 Å. In the fifth Ba2+ site, Ba2+ is bonded to six O2- atoms to form BaO6 octahedra that share corners with six WO6 octahedra. The corner-sharing octahedra tilt angles range from 13–35°. There are a spread of Ba–O bond distances ranging from 2.58–2.80 Å. In the sixth Ba2+ site, Ba2+ is bonded to six O2- atoms to form BaO6 octahedra that share corners with six WO6 octahedra. The corner-sharing octahedra tilt angles range from 4–22°. There are a spread of Ba–O bond distances ranging from 2.56–2.66 Å. There are two inequivalent W6+ sites. In the first W6+ site, W6+ is bonded to six O2- atoms to form WO6 octahedra that share corners with six BaO6 octahedra. The corner-sharing octahedra tilt angles range from 14–35°. There are a spread of W–O bond distances ranging from 1.93–2.04 Å. In the second W6+ site, W6+ is bonded to six O2- atoms to form WO6 octahedra that share corners with six BaO6 octahedra. The corner-sharing octahedra tilt angles range from 4–25°. There are a spread of W–O bond distances ranging from 1.92–2.01 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to four Ba2+ and one W6+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to three Ba2+ and one W6+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to two Ba2+ and one W6+ atom. In the fourth O2- site, O2- is bonded in a 6-coordinate geometry to five Ba2+ and one W6+ atom. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to four Ba2+ and one W6+ atom. In the sixth O2- site, O2- is bonded in a 5-coordinate geometry to four Ba2+ and one W6+ atom. In the seventh O2- site, O2- is bonded in a 6-coordinate geometry to five Ba2+ and one W6+ atom. In the eighth O2- site, O2- is bonded in a 5-coordinate geometry to four Ba2+ and one W6+ atom. In the ninth O2- site, O2- is bonded in a 4-coordinate geometry to four Ba2+ and one W6+ atom. In the tenth O2- site, O2- is bonded in a 3-coordinate geometry to three Ba2+ and one W6+ atom. In the eleventh O2- site, O2- is bonded in a 4-coordinate geometry to four Ba2+ and one W6+ atom. In the twelfth O2- site, O2- is bonded in a 4-coordinate geometry to three Ba2+ and one W6+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ba2Sb2O5 by Materials Project

Ba2Sb2O5 crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded to seven O2- atoms to form distorted BaO7 pentagonal bipyramids that share corners with two equivalent SbO4 trigonal pyramids, edges with four equivalent BaO6 octahedra, edges with two equivalent BaO7 pentagonal bipyramids, and an edgeedge with one SbO4 trigonal pyramid. There are a spread of Ba–O bond distances ranging from 2.72–2.94 Å. In the second Ba2+ site, Ba2+ is bonded to six O2- atoms to form distorted BaO6 octahedra that share corners with four equivalent SbO4 trigonal pyramids, edges with two equivalent BaO6 octahedra, and edges with four equivalent BaO7 pentagonal bipyramids. There are four shorter (2.71 Å) and two longer (2.81 Å) Ba–O bond lengths. There are two inequivalent Sb3+ sites. In the first Sb3+ site, Sb3+ is bonded to four O2- atoms to form distorted SbO4 trigonal pyramids that share corners with four equivalent BaO6 octahedra, corners with two equivalent BaO7 pentagonal bipyramids, corners with two equivalent SbO4 trigonal pyramids, and an edgeedge with one BaO7 pentagonal bipyramid. The corner-sharing octahedral tilt angles are 55°. There are two shorter (1.95 Å) and two longer (2.12 Å) Sb–O bond lengths. In the second Sb3+ site, Sb3+ is bonded in an L-shaped geometry to two equivalent O2- atoms. Both Sb–O bond lengths are 1.96 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to three Ba2+ and one Sb3+ atom to form a mixture of distorted edge and corner-sharing OBa3Sb tetrahedra. In the second O2- site, O2- is bonded to three Ba2+ and one Sb3+ atom to form a mixture of distorted edge and corner-sharing OBa3Sb tetrahedra. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Ba2+ and two equivalent Sb3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ba3SrO4 by Materials Project

Ba3SrO4 is Caswellsilverite-like structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Ba2+ is bonded to six O2- atoms to form BaO6 octahedra that share corners with six equivalent BaO6 octahedra, edges with four equivalent SrO6 octahedra, and edges with eight equivalent BaO6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Ba–O bond lengths are 2.77 Å. Sr2+ is bonded to six O2- atoms to form SrO6 octahedra that share corners with six equivalent SrO6 octahedra and edges with twelve equivalent BaO6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Sr–O bond lengths are 2.77 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to six equivalent Ba2+ atoms to form OBa6 octahedra that share corners with six equivalent OBa6 octahedra and edges with twelve OBa4Sr2 octahedra. The corner-sharing octahedral tilt angles are 0°. In the second O2- site, O2- is bonded to four equivalent Ba2+ and two equivalent Sr2+ atoms to form OBa4Sr2 octahedra that share corners with six equivalent OBa4Sr2 octahedra and edges with twelve OBa6 octahedra. The corner-sharing octahedral tilt angles are 0°. All O–Ba bond lengths are 2.77 Å. In the third O2- site, O2- is bonded to four equivalent Ba2+ and two equivalent Sr2+ atoms to form OBa4Sr2 octahedra that share corners with six equivalent OBa4Sr2 octahedra and edges with twelve OBa6 octahedra. The corner-sharing octahedral tilt angles are 0°. In the fourth O2- site, O2- is bonded to four equivalent Ba2+ and two equivalent Sr2+ atoms to form OBa4Sr2 octahedra that share corners with six equivalent OBa4Sr2 octahedra and edges with twelve OBa6 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on BaO by Materials Project

BaO is Molybdenum Carbide MAX Phase-like structured and crystallizes in the orthorhombic Pbcm space group. The structure is three-dimensional. there are five inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded to six equivalent O2- atoms to form a mixture of distorted edge and corner-sharing BaO6 pentagonal pyramids. The corner-sharing octahedra tilt angles range from 1–2°. There are a spread of Ba–O bond distances ranging from 2.80–2.85 Å. In the second Ba2+ site, Ba2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ba–O bond distances ranging from 2.68–3.08 Å. In the third Ba2+ site, Ba2+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing BaO6 octahedra. The corner-sharing octahedra tilt angles range from 2–3°. There are a spread of Ba–O bond distances ranging from 2.73–2.88 Å. In the fourth Ba2+ site, Ba2+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing BaO6 octahedra. The corner-sharing octahedra tilt angles range from 2–3°. There are a spread of Ba–O bond distances ranging from 2.74–2.88 Å. In the fifth Ba2+ site, Ba2+ is bonded to six equivalent O2- atoms to form edge-sharing BaO6 octahedra. There are four shorter (2.77 Å) and two longer (2.83 Å) Ba–O bond lengths. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to six Ba2+ atoms to form a mixture of edge, face, and corner-sharing OBa6 octahedra. The corner-sharing octahedra tilt angles range from 0–52°. In the second O2- site, O2- is bonded to six Ba2+ atoms to form a mixture of edge, face, and corner-sharing OBa6 octahedra. The corner-sharing octahedra tilt angles range from 1–52°. In the third O2- site, O2- is bonded to six Ba2+ atoms to form a mixture of edge and corner-sharing OBa6 octahedra. The corner-sharing octahedra tilt angles range from 1–2°. In the fourth O2- site, O2- is bonded to six Ba2+ atoms to form a mixture of edge, face, and corner-sharing OBa6 octahedra. The corner-sharing octahedra tilt angles range from 1–49°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ba3CaO4 by Materials Project

Ba3CaO4 is Caswellsilverite-like structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Ba2+ is bonded to six O2- atoms to form BaO6 octahedra that share corners with six equivalent BaO6 octahedra, edges with four equivalent CaO6 octahedra, and edges with eight equivalent BaO6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Ba–O bond lengths are 2.74 Å. Ca2+ is bonded to six O2- atoms to form CaO6 octahedra that share corners with six equivalent CaO6 octahedra and edges with twelve equivalent BaO6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Ca–O bond lengths are 2.74 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to six equivalent Ba2+ atoms to form OBa6 octahedra that share corners with six equivalent OBa6 octahedra and edges with twelve OBa4Ca2 octahedra. The corner-sharing octahedral tilt angles are 0°. In the second O2- site, O2- is bonded to four equivalent Ba2+ and two equivalent Ca2+ atoms to form OBa4Ca2 octahedra that share corners with six equivalent OBa4Ca2 octahedra and edges with twelve OBa6 octahedra. The corner-sharing octahedral tilt angles are 0°. All O–Ba bond lengths are 2.74 Å. In the third O2- site, O2- is bonded to four equivalent Ba2+ and two equivalent Ca2+ atoms to form OBa4Ca2 octahedra that share corners with six equivalent OBa4Ca2 octahedra and edges with twelve OBa6 octahedra. The corner-sharing octahedral tilt angles are 0°. In the fourth O2- site, O2- is bonded to four equivalent Ba2+ and two equivalent Ca2+ atoms to form OBa4Ca2 octahedra that share corners with six equivalent OBa4Ca2 octahedra and edges with twelve OBa6 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on BaSrO2 by Materials Project

BaO(SrO) is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Ba2+ is bonded to six equivalent O2- atoms to form BaO6 octahedra that share corners with six equivalent SrO6 octahedra, edges with six equivalent BaO6 octahedra, and edges with six equivalent SrO6 octahedra. The corner-sharing octahedral tilt angles are 4°. All Ba–O bond lengths are 2.77 Å. Sr2+ is bonded to six equivalent O2- atoms to form SrO6 octahedra that share corners with six equivalent BaO6 octahedra, edges with six equivalent BaO6 octahedra, and edges with six equivalent SrO6 octahedra. The corner-sharing octahedral tilt angles are 4°. All Sr–O bond lengths are 2.65 Å. O2- is bonded to three equivalent Ba2+ and three equivalent Sr2+ atoms to form a mixture of corner and edge-sharing OBa3Sr3 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on K4BaU3O12 by Materials Project

BaK4U3O12 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Im-3m space group. The structure is three-dimensional. K1+ is bonded to twelve O2- atoms to form KO12 cuboctahedra that share corners with twelve equivalent KO12 cuboctahedra, faces with six equivalent KO12 cuboctahedra, faces with two equivalent BaO6 octahedra, and faces with six equivalent UO6 octahedra. There are six shorter (3.15 Å) and six longer (3.17 Å) K–O bond lengths. Ba2+ is bonded to six equivalent O2- atoms to form BaO6 octahedra that share corners with six equivalent UO6 octahedra and faces with eight equivalent KO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Ba–O bond lengths are 2.53 Å. U6+ is bonded to six O2- atoms to form UO6 octahedra that share corners with two equivalent BaO6 octahedra, corners with four equivalent UO6 octahedra, and faces with eight equivalent KO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (1.93 Å) and four longer (2.23 Å) U–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted linear geometry to four equivalent K1+ and two equivalent U6+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to four equivalent K1+, one Ba2+, and one U6+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ba13Dy8Zn4Pt4O37 by Materials Project

Ba13Dy8Pt4Zn4O37 crystallizes in the tetragonal I4/m space group. The structure is three-dimensional. there are four inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ba–O bond distances ranging from 2.81–2.95 Å. In the second Ba2+ site, Ba2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Ba–O bond distances ranging from 2.77–3.27 Å. In the third Ba2+ site, Ba2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Ba–O bond distances ranging from 2.75–3.16 Å. In the fourth Ba2+ site, Ba2+ is bonded to six O2- atoms to form BaO6 octahedra that share corners with two equivalent BaO6 octahedra and corners with four equivalent ZnO5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 0°. There are four shorter (2.63 Å) and two longer (2.89 Å) Ba–O bond lengths. There are two inequivalent Dy3+ sites. In the first Dy3+ site, Dy3+ is bonded to seven O2- atoms to form distorted DyO7 pentagonal bipyramids that share corners with two equivalent ZnO5 trigonal bipyramids, edges with five DyO7 pentagonal bipyramids, an edgeedge with one ZnO5 trigonal bipyramid, and a faceface with one PtO6 octahedra. There are a spread of Dy–O bond distances ranging from 2.29–2.41 Å. In the second Dy3+ site, Dy3+ is bonded to seven O2- atoms to form distorted DyO7 pentagonal bipyramids that share corners with two equivalent PtO6 octahedra, edges with three equivalent DyO7 pentagonal bipyramids, edges with two equivalent ZnO5 trigonal bipyramids, and a faceface with one PtO6 octahedra. The corner-sharing octahedral tilt angles are 11°. There are a spread of Dy–O bond distances ranging from 2.24–2.52 Å. Pt4+ is bonded to six O2- atoms to form PtO6 octahedra that share corners with two equivalent DyO7 pentagonal bipyramids, corners with two equivalent ZnO5 trigonal bipyramids, and faces with two DyO7 pentagonal bipyramids. There are a spread of Pt–O bond distances ranging from 2.05–2.11 Å. Zn2+ is bonded to five O2- atoms to form distorted ZnO5 trigonal bipyramids that share a cornercorner with one BaO6 octahedra, corners with two equivalent PtO6 octahedra, corners with two equivalent DyO7 pentagonal bipyramids, and edges with three DyO7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 4–11°. There are a spread of Zn–O bond distances ranging from 1.94–2.18 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded to five Ba2+ and one Zn2+ atom to form distorted OBa5Zn octahedra that share corners with seven OBa3DyZnPt octahedra, edges with eight OBa6 octahedra, and faces with two equivalent OBa3DyZnPt octahedra. The corner-sharing octahedra tilt angles range from 0–57°. In the second O2- site, O2- is bonded to four Ba2+, one Dy3+, and one Pt4+ atom to form distorted OBa4DyPt octahedra that share corners with nine OBa4DyPt octahedra, edges with five OBa6 octahedra, and faces with two equivalent OBa3DyZnPt octahedra. The corner-sharing octahedra tilt angles range from 1–61°. In the third O2- site, O2- is bonded to three Ba2+, one Dy3+, one Pt4+, and one Zn2+ atom to form a mixture of distorted face and corner-sharing OBa3DyZnPt octahedra. The corner-sharing octahedra tilt angles range from 46–61°. In the fourth O2- site, O2- is bonded to six Ba2+ atoms to form OBa6 octahedra that share corners with ten OBa6 octahedra and edges with twelve OBa4DyPt octahedra. The corner-sharing octahedra tilt angles range from 0–46°. In the fifth O2- site, O2- is bonded to four equivalent Ba2+, one Dy3+, and one Pt4+ atom to form distorted OBa4DyPt octahedra that share corners with nine OBa4DyPt octahedra, edges with five equivalent OBa4DyPt octahedra, and faces with two equivalent OBa3DyZnPt octahedra. The corner-sharing octahedra tilt angles range from 4–55°. In the sixth O2- site, O2- is bonded in a 6-coordinate geometry to three Ba2+, two Dy3+, and one Pt4+ atom. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to one Ba2+, three Dy3+, and one Zn2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on BaZn(SeO3)2 by Materials Project

BaZn(SeO3)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Ba2+ is bonded to six O2- atoms to form distorted BaO6 octahedra that share corners with two equivalent BaO6 octahedra and corners with three equivalent ZnO4 trigonal pyramids. The corner-sharing octahedral tilt angles are 58°. There are a spread of Ba–O bond distances ranging from 2.65–2.98 Å. Zn2+ is bonded to four O2- atoms to form distorted ZnO4 trigonal pyramids that share corners with three equivalent BaO6 octahedra. The corner-sharing octahedra tilt angles range from 41–64°. There are a spread of Zn–O bond distances ranging from 1.90–2.09 Å. There are two inequivalent Se4+ sites. In the first Se4+ site, Se4+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There are a spread of Se–O bond distances ranging from 1.67–2.12 Å. In the second Se4+ site, Se4+ is bonded in a water-like geometry to two O2- atoms. There is one shorter (1.76 Å) and one longer (1.82 Å) Se–O bond length. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Ba2+, one Zn2+, and one Se4+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one Ba2+, one Zn2+, and one O2- atom. The O–O bond length is 1.45 Å. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Ba2+, one Zn2+, and one Se4+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Ba2+ and one Se4+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Ba2+ and one Se4+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Zn2+, one Se4+, and one O2- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ba2B2O5 by Materials Project

Ba2B2O5 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded to seven O2- atoms to form distorted BaO7 hexagonal pyramids that share edges with four equivalent BaO7 hexagonal pyramids and edges with two equivalent BaO6 pentagonal pyramids. There are a spread of Ba–O bond distances ranging from 2.68–2.92 Å. In the second Ba2+ site, Ba2+ is bonded to six O2- atoms to form distorted BaO6 pentagonal pyramids that share edges with two equivalent BaO7 hexagonal pyramids and edges with four equivalent BaO6 pentagonal pyramids. There are a spread of Ba–O bond distances ranging from 2.65–2.77 Å. There are two inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.37 Å) and one longer (1.44 Å) B–O bond length. 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 (1.44 Å) B–O bond length. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent Ba2+ and one B3+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to three Ba2+ and one B3+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to three Ba2+ and one B3+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent Ba2+ and one B3+ atom. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to one Ba2+ and two B3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ba2Sb2O5 by Materials Project

Ba2Sb2O5 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded to seven O2- atoms to form distorted BaO7 pentagonal bipyramids that share edges with four equivalent BaO6 octahedra and edges with two equivalent BaO7 pentagonal bipyramids. There are a spread of Ba–O bond distances ranging from 2.76–3.05 Å. In the second Ba2+ site, Ba2+ is bonded to six O2- atoms to form distorted BaO6 octahedra that share edges with two equivalent BaO6 octahedra and edges with four equivalent BaO7 pentagonal bipyramids. There are four shorter (2.71 Å) and two longer (2.79 Å) Ba–O bond lengths. There are two inequivalent Sb3+ sites. In the first Sb3+ site, Sb3+ is bonded in a trigonal non-coplanar geometry to three O2- atoms. There are two shorter (1.96 Å) and one longer (2.05 Å) Sb–O bond lengths. In the second Sb3+ site, Sb3+ is bonded in a trigonal non-coplanar geometry to three O2- atoms. There are two shorter (1.96 Å) and one longer (2.05 Å) Sb–O bond lengths. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to one Ba2+ and two Sb3+ atoms. In the second O2- site, O2- is bonded to three Ba2+ and one Sb3+ atom to form a mixture of distorted corner and edge-sharing OBa3Sb tetrahedra. In the third O2- site, O2- is bonded to three Ba2+ and one Sb3+ atom to form a mixture of distorted corner and edge-sharing OBa3Sb tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ba6Na2P2Ru2O17 by Materials Project

Na2Ba6Ru2P2O17 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Na1+ is bonded to six O2- atoms to form NaO6 octahedra that share corners with three equivalent RuO6 octahedra, corners with three equivalent PO4 tetrahedra, and faces with two BaO6 cuboctahedra. The corner-sharing octahedral tilt angles are 5°. There are three shorter (2.25 Å) and three longer (2.42 Å) Na–O bond lengths. There are four inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are three shorter (2.81 Å) and six longer (2.95 Å) Ba–O bond lengths. In the second Ba2+ site, Ba2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Ba–O bond distances ranging from 2.70–2.99 Å. In the third Ba2+ site, Ba2+ is bonded to six equivalent O2- atoms to form distorted BaO6 cuboctahedra that share corners with six equivalent PO4 tetrahedra and faces with two equivalent NaO6 octahedra. All Ba–O bond lengths are 2.87 Å. In the fourth Ba2+ site, Ba2+ is bonded to twelve O2- atoms to form BaO12 cuboctahedra that share corners with six equivalent BaO12 cuboctahedra, faces with two equivalent NaO6 octahedra, and faces with six equivalent RuO6 octahedra. There are six shorter (2.94 Å) and six longer (3.01 Å) Ba–O bond lengths. Ru5+ is bonded to six O2- atoms to form RuO6 octahedra that share corners with three equivalent NaO6 octahedra, faces with three equivalent BaO12 cuboctahedra, and a faceface with one RuO6 octahedra. The corner-sharing octahedral tilt angles are 5°. There is three shorter (1.90 Å) and three longer (2.09 Å) Ru–O bond length. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent BaO6 cuboctahedra and corners with three equivalent NaO6 octahedra. The corner-sharing octahedral tilt angles are 17°. There is one shorter (1.54 Å) and three longer (1.57 Å) P–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one Ba2+ and one P5+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Na1+, four Ba2+, and one Ru5+ atom. In the third O2- site, O2- is bonded to four Ba2+ and two equivalent Ru5+ atoms to form a mixture of distorted face and corner-sharing OBa4Ru2 octahedra. The corner-sharing octahedra tilt angles range from 5–60°. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, three Ba2+, and one P5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on RbBaO3 by Materials Project

RbBaO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Rb is bonded to twelve equivalent O atoms to form RbO12 cuboctahedra that share corners with twelve equivalent RbO12 cuboctahedra, faces with six equivalent RbO12 cuboctahedra, and faces with eight equivalent BaO6 octahedra. All Rb–O bond lengths are 3.53 Å. Ba is bonded to six equivalent O atoms to form BaO6 octahedra that share corners with six equivalent BaO6 octahedra and faces with eight equivalent RbO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Ba–O bond lengths are 2.50 Å. O is bonded in a linear geometry to four equivalent Rb and two equivalent Ba atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on RbBaSiHO4 by Materials Project

RbBaSiHO4 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. Rb1+ is bonded in a 1-coordinate geometry to two equivalent H1+ and nine O2- atoms. There are one shorter (2.77 Å) and one longer (2.78 Å) Rb–H bond lengths. There are a spread of Rb–O bond distances ranging from 2.77–3.57 Å. Ba2+ is bonded to six O2- atoms to form distorted BaO6 octahedra that share corners with six equivalent SiO4 tetrahedra and edges with two equivalent BaO6 octahedra. There are a spread of Ba–O bond distances ranging from 2.66–2.92 Å. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with six equivalent BaO6 octahedra. The corner-sharing octahedra tilt angles range from 37–53°. There is three shorter (1.64 Å) and one longer (1.74 Å) Si–O bond length. H1+ is bonded in a single-bond geometry to two equivalent Rb1+ and one O2- atom. The H–O bond length is 1.01 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Rb1+, two equivalent Ba2+, and one Si4+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Rb1+, two equivalent Ba2+, and one Si4+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent Rb1+, one Ba2+, and one Si4+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two equivalent Rb1+, one Ba2+, one Si4+, and one H1+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on KBaSiHO4 by Materials Project

KBaSiHO4 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. K1+ is bonded in a 1-coordinate geometry to two equivalent H1+ and five O2- atoms. There are one shorter (2.73 Å) and one longer (2.75 Å) K–H bond lengths. There are a spread of K–O bond distances ranging from 2.65–3.20 Å. Ba2+ is bonded to six O2- atoms to form distorted BaO6 octahedra that share corners with six equivalent SiO4 tetrahedra and edges with two equivalent BaO6 octahedra. There are a spread of Ba–O bond distances ranging from 2.65–2.89 Å. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with six equivalent BaO6 octahedra. The corner-sharing octahedra tilt angles range from 39–54°. There are a spread of Si–O bond distances ranging from 1.64–1.73 Å. H1+ is bonded in a distorted single-bond geometry to two equivalent K1+ and two O2- atoms. There is one shorter (1.02 Å) and one longer (1.67 Å) H–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+, two equivalent Ba2+, and one Si4+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to one K1+, two equivalent Ba2+, and one Si4+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to one K1+, one Ba2+, one Si4+, and one H1+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one K1+, one Ba2+, one Si4+, and one H1+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CsBaSiHO4 by Materials Project

CsBaSiHO4 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. Cs1+ is bonded in a 1-coordinate geometry to two equivalent H1+ and nine O2- atoms. Both Cs–H bond lengths are 2.86 Å. There are a spread of Cs–O bond distances ranging from 2.90–3.55 Å. Ba2+ is bonded to six O2- atoms to form distorted BaO6 octahedra that share corners with six equivalent SiO4 tetrahedra and edges with two equivalent BaO6 octahedra. There are a spread of Ba–O bond distances ranging from 2.68–2.97 Å. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with six equivalent BaO6 octahedra. The corner-sharing octahedra tilt angles range from 35–53°. There are a spread of Si–O bond distances ranging from 1.64–1.74 Å. H1+ is bonded in a single-bond geometry to two equivalent Cs1+ and one O2- atom. The H–O bond length is 1.01 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Cs1+, two equivalent Ba2+, and one Si4+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Cs1+, two equivalent Ba2+, and one Si4+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent Cs1+, one Ba2+, and one Si4+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two equivalent Cs1+, one Ba2+, one Si4+, and one H1+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on BaCa3O4 by Materials Project

BaCa3O4 is Caswellsilverite-like structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Ba2+ is bonded to six O2- atoms to form BaO6 octahedra that share corners with six equivalent BaO6 octahedra and edges with twelve equivalent CaO6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Ba–O bond lengths are 2.55 Å. Ca2+ is bonded to six O2- atoms to form CaO6 octahedra that share corners with six equivalent CaO6 octahedra, edges with four equivalent BaO6 octahedra, and edges with eight equivalent CaO6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Ca–O bond lengths are 2.55 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to six equivalent Ca2+ atoms to form OCa6 octahedra that share corners with six equivalent OCa6 octahedra and edges with twelve OBa2Ca4 octahedra. The corner-sharing octahedral tilt angles are 0°. In the second O2- site, O2- is bonded to two equivalent Ba2+ and four equivalent Ca2+ atoms to form OBa2Ca4 octahedra that share corners with six equivalent OBa2Ca4 octahedra and edges with twelve OCa6 octahedra. The corner-sharing octahedral tilt angles are 0°. All O–Ca bond lengths are 2.55 Å. In the third O2- site, O2- is bonded to two equivalent Ba2+ and four equivalent Ca2+ atoms to form OBa2Ca4 octahedra that share corners with six equivalent OBa2Ca4 octahedra and edges with twelve OCa6 octahedra. The corner-sharing octahedral tilt angles are 0°. In the fourth O2- site, O2- is bonded to two equivalent Ba2+ and four equivalent Ca2+ atoms to form OBa2Ca4 octahedra that share corners with six equivalent OBa2Ca4 octahedra and edges with twelve OCa6 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗