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DOE OSTI2020

Materials Data on Sr16V8O31 by Materials Project

Sr16V8O31 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are eight inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.62–3.01 Å. In the second Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.46–3.06 Å. In the third Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.44–2.71 Å. In the fourth Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.61–2.70 Å. In the fifth Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.46–2.82 Å. In the sixth Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.46–3.05 Å. In the seventh Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.46–3.05 Å. In the eighth Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.47–2.85 Å. There are four inequivalent V+3.75+ sites. In the first V+3.75+ site, V+3.75+ is bonded to six O2- atoms to form VO6 octahedra that share corners with three VO6 octahedra and a cornercorner with one VO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 0–4°. There are a spread of V–O bond distances ranging from 1.88–2.04 Å. In the second V+3.75+ site, V+3.75+ is bonded to five O2- atoms to form corner-sharing VO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 3–10°. There are a spread of V–O bond distances ranging from 1.84–1.97 Å. In the third V+3.75+ site, V+3.75+ is bonded to six O2- atoms to form VO6 octahedra that share corners with three VO6 octahedra and a cornercorner with one VO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 0–3°. There are a spread of V–O bond distances ranging from 1.97–2.08 Å. In the fourth V+3.75+ site, V+3.75+ is bonded to six O2- atoms to form VO6 octahedra that share corners with three VO6 octahedra and a cornercorner with one VO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 0–4°. There are a spread of V–O bond distances ranging from 1.85–2.05 Å. There are seventeen inequivalent O2- sites. In the first O2- site, O2- is bonded to four Sr2+ and two V+3.75+ atoms to form a mixture of distorted edge, face, and corner-sharing OSr4V2 octahedra. The corner-sharing octahedra tilt angles range from 1–57°. In the second O2- site, O2- is bonded to four Sr2+ and two equivalent V+3.75+ atoms to form a mixture of distorted edge, face, and corner-sharing OSr4V2 octahedra. The corner-sharing octahedra tilt angles range from 1–55°. In the third O2- site, O2- is bonded in a 1-coordinate geometry to five Sr2+ and one V+3.75+ atom. In the fourth O2- site, O2- is bonded to five Sr2+ and one V+3.75+ atom to form distorted OSr5V octahedra that share corners with nine OSr4V2 octahedra, edges with four OSr5V octahedra, and faces with three OSr4V2 octahedra. The corner-sharing octahedra tilt angles range from 0–58°. In the fifth O2- site, O2- is bonded to five Sr2+ and one V+3.75+ atom to form distorted OSr5V octahedra that share corners with nine OSr4V2 octahedra, edges with six OSr5V octahedra, and faces with three OSr4V2 octahedra. The corner-sharing octahedra tilt angles range from 0–58°. In the sixth O2- site, O2- is bonded in a distorted linear geometry to four Sr2+ and two V+3.75+ atoms. In the seventh O2- site, O2- is bonded to five Sr2+ and one V+3.75+ atom to form distorted OSr5V octahedra that share corners with ten OSr4V2 octahedra, edges with four OSr5V octahedra, and faces with three OSr4V2 octahedra. The corner-sharing octahedra tilt angles range from 8–57°. In the eighth O2- site, O2- is bonded in a 6-coordinate geometry to five Sr2+ and one V+3.75+ atom. In the ninth O2- site, O2- is bonded in a distorted linear geometry to four Sr2+ and two V+3.75+ atoms. In the tenth O2- site, O2- is bonded in a 6-coordinate geometry to five Sr2+ and one V+3.75+ atom. In the eleventh O2- site, O2- is bonded to four Sr2+ and two V+3.75+ atoms to form distorted OSr4V2 octahedra that share corners with seven OSr5V octahedra and faces with seven OSr4V2 octahedra. The corner-sharing octahedra tilt angles range from 47–56°. In the twelfth O2- site, O2- is bonded to four Sr2+ and two equivalent V+3.75+ atoms to form distorted OSr4V2 octahedra that share corners with twelve OSr5V octahedra, edges with two equivalent OSr4V2 octahedra, and faces with six OSr5V octahedra. The corner-sharing octahedra tilt angles range from 1–56°. In the thirteenth O2- site, O2- is bonded to five Sr2+ and one V+3.75+ atom to form distorted OSr5V octahedra that share corners with eight OSr4V2 octahedra, edges with six OSr5V octahedra, and faces with two OSr4V2 octahedra. The corner-sharing octahedra tilt angles range from 1–56°. In the fourteenth O2- site, O2- is bonded in a 6-coordinate geometry to four Sr2+ and two V+3.75+ atoms. In the fifteenth O2- site, O2- is bonded to five Sr2+ and one V+3.75+ atom to form distorted OSr5V octahedra that share corners with ten OSr4V2 octahedra, edges with six OSr5V octahedra, and faces with two OSr4V2 octahedra. The corner-sharing octahedra tilt angles range from 1–56°. In the sixteenth O2- site, O2- is bonded to four Sr2+ and two V+3.75+ atoms to form distorted OSr4V2 octahedra that share corners with eleven OSr5V octahedra, an edgeedge with one OSr4V2 octahedra, and faces with five OSr4V2 octahedra. The corner-sharing octahedra tilt angles range from 1–58°. In the seventeenth O2- site, O2- is bonded to four Sr2+ and two equivalent V+3.75+ atoms to form distorted OSr4V2 octahedra that share corners with six OSr5V octahedra and faces with six OSr4V2 octahedra. The corner-sharing octahedra tilt angles range from 42–53°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SrTaNO2 by Materials Project

SrTaO2N is Orthorhombic Perovskite-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 12-coordinate geometry to four N3- and eight O2- atoms. There are a spread of Sr–N bond distances ranging from 2.78–3.01 Å. There are a spread of Sr–O bond distances ranging from 2.54–3.26 Å. In the second Sr2+ site, Sr2+ is bonded in a 11-coordinate geometry to four N3- and seven O2- atoms. There are a spread of Sr–N bond distances ranging from 2.74–3.09 Å. There are a spread of Sr–O bond distances ranging from 2.54–3.00 Å. In the third Sr2+ site, Sr2+ is bonded in a 12-coordinate geometry to four N3- and eight O2- atoms. There are a spread of Sr–N bond distances ranging from 2.67–2.95 Å. There are a spread of Sr–O bond distances ranging from 2.55–3.23 Å. In the fourth Sr2+ site, Sr2+ is bonded in a 12-coordinate geometry to four N3- and eight O2- atoms. There are a spread of Sr–N bond distances ranging from 2.67–3.08 Å. There are a spread of Sr–O bond distances ranging from 2.68–3.30 Å. There are four inequivalent Ta5+ sites. In the first Ta5+ site, Ta5+ is bonded to one N3- and five O2- atoms to form corner-sharing TaNO5 octahedra. The corner-sharing octahedra tilt angles range from 7–20°. The Ta–N bond length is 1.91 Å. There are a spread of Ta–O bond distances ranging from 2.03–2.17 Å. In the second Ta5+ site, Ta5+ is bonded to three N3- and three O2- atoms to form corner-sharing TaN3O3 octahedra. The corner-sharing octahedra tilt angles range from 7–20°. There are a spread of Ta–N bond distances ranging from 1.95–2.09 Å. There are a spread of Ta–O bond distances ranging from 2.09–2.16 Å. In the third Ta5+ site, Ta5+ is bonded to one N3- and five O2- atoms to form corner-sharing TaNO5 octahedra. The corner-sharing octahedra tilt angles range from 11–18°. The Ta–N bond length is 1.94 Å. There are a spread of Ta–O bond distances ranging from 2.02–2.11 Å. In the fourth Ta5+ site, Ta5+ is bonded to three N3- and three O2- atoms to form corner-sharing TaN3O3 octahedra. The corner-sharing octahedra tilt angles range from 9–18°. There are a spread of Ta–N bond distances ranging from 1.97–2.03 Å. There are a spread of Ta–O bond distances ranging from 2.07–2.16 Å. There are four inequivalent N3- sites. In the first N3- site, N3- is bonded in a 2-coordinate geometry to four Sr2+ and two Ta5+ atoms. In the second N3- site, N3- is bonded in a 2-coordinate geometry to four Sr2+ and two Ta5+ atoms. In the third N3- site, N3- is bonded in a 2-coordinate geometry to four Sr2+ and two Ta5+ atoms. In the fourth N3- site, N3- is bonded in a 2-coordinate geometry to four Sr2+ and two Ta5+ atoms. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to four Sr2+ and two Ta5+ atoms. In the second O2- site, O2- is bonded in a 5-coordinate geometry to four Sr2+ and two Ta5+ atoms. In the third O2- site, O2- is bonded in a 2-coordinate geometry to four Sr2+ and two Ta5+ atoms. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to four Sr2+ and two Ta5+ atoms. In the fifth O2- site, O2- is bonded in a 5-coordinate geometry to four Sr2+ and two Ta5+ atoms. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to four Sr2+ and two Ta5+ atoms. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to four Sr2+ and two Ta5+ atoms. In the eighth O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+ and two Ta5+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SrTaNO2 by Materials Project

SrTaO2N crystallizes in the monoclinic C2 space group. The structure is three-dimensional. there are four inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded to two equivalent N3- and ten O2- atoms to form distorted SrN2O10 cuboctahedra that share corners with twelve SrN2O10 cuboctahedra, faces with four equivalent SrN2O10 cuboctahedra, and faces with eight TaN2O4 octahedra. Both Sr–N bond lengths are 2.72 Å. There are a spread of Sr–O bond distances ranging from 2.66–3.15 Å. In the second Sr2+ site, Sr2+ is bonded to two equivalent N3- and ten O2- atoms to form distorted SrN2O10 cuboctahedra that share corners with four equivalent SrN2O10 cuboctahedra, faces with six SrN6O6 cuboctahedra, and faces with eight TaN2O4 octahedra. Both Sr–N bond lengths are 2.96 Å. There are a spread of Sr–O bond distances ranging from 2.62–3.10 Å. In the third Sr2+ site, Sr2+ is bonded to six N3- and six O2- atoms to form distorted SrN6O6 cuboctahedra that share corners with twelve SrN2O10 cuboctahedra, faces with two equivalent SrN2O10 cuboctahedra, and faces with eight TaN2O4 octahedra. There are a spread of Sr–N bond distances ranging from 2.73–3.01 Å. There are a spread of Sr–O bond distances ranging from 2.65–3.07 Å. In the fourth Sr2+ site, Sr2+ is bonded in a 12-coordinate geometry to six N3- and four O2- atoms. There are four shorter (2.78 Å) and two longer (2.97 Å) Sr–N bond lengths. There are two shorter (2.77 Å) and two longer (2.90 Å) Sr–O bond lengths. There are two inequivalent Ta5+ sites. In the first Ta5+ site, Ta5+ is bonded to two N3- and four O2- atoms to form TaN2O4 octahedra that share corners with six equivalent TaN2O4 octahedra and faces with six SrN2O10 cuboctahedra. The corner-sharing octahedra tilt angles range from 10–21°. There is one shorter (1.99 Å) and one longer (2.00 Å) Ta–N bond length. There are a spread of Ta–O bond distances ranging from 2.02–2.13 Å. In the second Ta5+ site, Ta5+ is bonded to two N3- and four O2- atoms to form TaN2O4 octahedra that share corners with six equivalent TaN2O4 octahedra and faces with six SrN2O10 cuboctahedra. The corner-sharing octahedra tilt angles range from 10–21°. There is one shorter (1.98 Å) and one longer (2.01 Å) Ta–N bond length. There are a spread of Ta–O bond distances ranging from 2.03–2.13 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a 2-coordinate geometry to four Sr2+ and two Ta5+ atoms. In the second N3- site, N3- is bonded in a 2-coordinate geometry to four Sr2+ and two Ta5+ atoms. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to four Sr2+ and two Ta5+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to four Sr2+ and two Ta5+ atoms. In the third O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+ and two Ta5+ atoms. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to four Sr2+ and two Ta5+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr2Sn by Materials Project

Sr2Sn is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Sr sites. In the first Sr site, Sr is bonded in a 5-coordinate geometry to five equivalent Sn atoms. There are a spread of Sr–Sn bond distances ranging from 3.51–3.97 Å. In the second Sr site, Sr is bonded to four equivalent Sn atoms to form a mixture of corner and edge-sharing SrSn4 tetrahedra. There are a spread of Sr–Sn bond distances ranging from 3.35–3.44 Å. Sn is bonded in a 9-coordinate geometry to nine Sr atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ba6Sr2CoCu7O20 by Materials Project

Ba6Sr2CoCu7O20 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are twenty-four inequivalent Ba2+ sites. In the first 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 2.64–3.07 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 2.70–3.18 Å. In the third 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 2.72–3.16 Å. In the fourth 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 2.73–3.11 Å. In the fifth 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 2.71–2.95 Å. In the sixth 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 2.70–3.13 Å. In the seventh 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 2.67–3.12 Å. In the eighth 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 2.73–3.08 Å. In the ninth 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 2.72–3.24 Å. In the tenth 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 2.71–3.10 Å. In the eleventh 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 2.69–3.36 Å. In the twelfth 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 2.71–3.02 Å. In the thirteenth 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 2.70–3.06 Å. In the fourteenth 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 2.71–2.99 Å. In the fifteenth 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 2.68–3.22 Å. In the sixteenth 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 2.69–3.03 Å. In the seventeenth 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 2.71–3.12 Å. In the eighteenth 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 2.68–3.30 Å. In the nineteenth 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 2.71–3.04 Å. In the twentieth 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 2.70–3.06 Å. In the twenty-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 2.72–3.10 Å. In the twenty-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 2.70–3.08 Å. In the twenty-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 2.71–2.97 Å. In the twenty-fourth 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 2.69–3.36 Å. There are eight inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.58–3.11 Å. In the second Sr2+ site, Sr2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Sr–O bond distances ranging from 2.57–3.18 Å. In the third Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.58–3.08 Å. In the fourth Sr2+ site, Sr2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Sr–O bond distances ranging from 2.56–3.25 Å. In the fifth Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.56–2.94 Å. In the sixth Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.58–3.04 Å. In the seventh Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.58–3.12 Å. In the eighth Sr2+ site, Sr2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Sr–O bond distances ranging from 2.54–3.22 Å. There are four inequivalent Co4+ sites. In the first Co4+ site, Co4+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Co–O bond distances ranging from 1.83–2.60 Å. In the second Co4+ site, Co4+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with two CuO6 octahedra, a cornercorner with one CoO5 square pyramid, a cornercorner with one CuO5 square pyramid, a cornercorner with one CuO4 tetrahedra, and a cornercorner with one CuO4 trigonal pyramid. The corner-sharing octahedra tilt angles range from 1–6°. There are a spread of Co–O bond distances ranging from 1.84–2.41 Å. In the third Co4+ site, Co4+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with two CuO6 octahedra, a cornercorner with one CoO5 square pyramid, a cornercorner with one CuO5 square pyramid, a cornercorner with one CuO4 tetrahedra, and a cornercorner with one CuO4 trigonal pyramid. The corner-sharing octahedra tilt angles range from 1–7°. There are a spread of Co–O bond distances ranging from 1.83–2.40 Å. In the fourth Co4+ site, Co4+ is bonded to five O2- atoms to form CoO5 square pyramids that share a cornercorner with one CuO6 octahedra, corners with two CoO6 octahedra, and a cornercorner with one CuO4 trigonal pyramid. The corner-sharing octahedra tilt angles range from 1–7°. There are a spread of Co–O bond distances ranging from 1.80–2.07 Å. There are twenty-eight inequivalent Cu+2.86+ sites. In the first Cu+2.86+ site, Cu+2.86+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with four CuO6 octahedra, a cornercorner with one CuO4 tetrahedra, and a cornercorner with one CuO4 trigonal pyramid. The corner-sharing octahedra tilt angles range from 3–12°. There are a spread of Cu–O bond distances ranging from 2.00–2.44 Å. In the second Cu+2.86+ site, Cu+2.86+ is bonded to five O2- atoms to form CuO5 square pyramids that share corners with four CuO6 octahedra and a cornercorner with one CuO4 trigonal pyramid. The corner-sharing octahedra tilt angles range from 3–8°. There are a spread of Cu–O bond distances ranging from 1.96–2.24 Å. In the third Cu+2.86+ site, Cu+2.86+ is bonded to six O2- atoms to form distorted CuO6 octahedra that share corners with four CuO6 octahedra, a cornercorner with one CuO4 tetrahedra, and a cornercorner with one CuO4 trigonal pyramid. The corner-sharing octahedra tilt angles range from 2–7°. There are a spread of Cu–O bond distances ranging from 1.96–2.55 Å. In the fourth Cu+2.86+ site, Cu+2.86+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with two CuO6 octahedra, a cornercorner with one CoO5 square pyramid, a cornercorner with one CuO5 square pyramid, a cornercorner with one CuO4 tetrahedra, and a cornercorner with one CuO4 trigonal pyramid. The corner-sharing octahedra tilt angles range from 3–4°. There are a spread of Cu–O bond distances ranging from 1.96–2.37 Å. In the fifth Cu+2.86+ site, Cu+2.86+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with four CuO6 octahedra and a cornercorner with one CuO4 tetrahedra. The corner-sharing octahedra tilt angles range from 1–4°. There are a spread of Cu–O bond distances ranging from 1.96–2.14 Å. In the sixth Cu+2.86+ site, Cu+2.86+ is bonded to five O2- atoms to form distorted CuO5 square pyramids that share a cornercorner with one CuO6 octahedra, corners with two CoO6 octahedra, and a cornercorner with one CuO4 tetrahedra. The corner-sharing octahedra tilt angles range from 2–9°. There are a spread of Cu–O bond distances ranging from 1.93–2.31 Å. In the seventh Cu+2.86+ site, Cu+2.86+ is bonded to six O2- atoms to form distorted CuO6 octahedra that share corners with three CuO6 octahedra, a cornercorner with one CuO5 square pyramid, a cornercorner with one CuO4 tetrahedra, and a cornercorner with one CuO4 trigonal pyramid. The corner-sharing octahedra tilt angles range from 1–12°. There are a spread of Cu–O bond distances ranging from 1.95–2.58 Å. In the eighth Cu+2.86+ site, Cu+2.86+ is bonded to six O2- atoms to form CuO6 octahedra that share a cornercorner with one CuO6 octahedra, corners with two CoO6 octahedra, and corners with two CuO4 trigonal pyramids. The corner-sharing octahedra tilt angles range from 1–7°. There are a spread of Cu–O bond distances ranging from 2.04–2.31 Å. In the ninth Cu+2.86+ site, Cu+2.86+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with three CuO6 octahedra, a cornercorner with one CuO5 square pyramid, a cornercorner with one CuO4 tetrahedra, and a cornercorner with one CuO4 trigonal pyramid. The corner-sharing octahedra tilt angles range from 2–4°. There are a spread of Cu–O bond distances ranging from 1.95–2.33 Å. In the tenth Cu+2.86+ site, Cu+2.86+ is bonded to six O2- atoms to form CuO6 octahedra that share a cornercorner with one CuO6 octahedra, corners with two CoO6 octahedra, a cornercorner with one CuO4 tetrahedra, and a cornercorner with one CuO4 trigonal pyramid. The corner-sharing octahedra tilt angles range from 1–6°. There are a spread of Cu–O bond distances ranging from 2.02–2.25 Å. In the eleventh Cu+2.86+ site, Cu+2.86+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with three CuO6 octahedra, a cornercorner with one CuO5 square pyramid, a cornercorner with one CuO4 tetrahedra, and a cornercorner with one CuO4 trigonal pyramid. The corner-sharing octahedra tilt angles range from 3–8°. There are a spread of Cu–O bond distances ranging from 1.95–2.34 Å. In the twelfth Cu+2.86+ site, Cu+2.86+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with three CuO6 octahedra, a cornercorner with one CuO5 square pyramid, and corners with two CuO4 trigonal pyramids. The corner-sharing octahedra tilt angles range from 3–4°. There are a spread of Cu–O bond distances ranging from 2.00–2.33 Å. In the thirteenth Cu+2.86+ site, Cu+2.86+ is bonded to four O2- atoms to form distorted CuO4 trigonal pyramids that share a cornercorner with one CuO6 octahedra and corners with two CuO4 trigonal pyramids. The corner-sharing octahedral tilt angles are 22°. There are a spread of Cu–O bond distances ranging from 1.81–1.89 Å. In the fourteenth Cu+2.86+ site, Cu+2.86+ is bonded to four O2- atoms to form distorted CuO4 tetrahedra that share a cornercorner with one CuO6 octahedra, a cornercorner with one CuO5 square pyramid, a cornercorner with one CuO4 tetrahedra, and a cornercorner with one CuO4 trigonal pyramid. The corner-sharing octahedral tilt angles are 28°. There are a spread of Cu–O bond distances ranging from 1.82–1.91 Å. In the fifteenth Cu+2.86+ site, Cu+2.86+ is bonded to four O2- atoms to form CuO4 trigonal pyramids that share a cornercorner with one CoO6 octahedra, a cornercorner with one CuO6 octahe

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr2Ca6Co7CuO20 by Materials Project

Sr2Ca6Co7CuO20 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eight inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.44–3.13 Å. In the second Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.43–2.85 Å. In the third Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.41–3.13 Å. In the fourth Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.39–3.07 Å. In the fifth Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.45–3.10 Å. In the sixth Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.44–3.13 Å. In the seventh Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.44–2.83 Å. In the eighth Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.41–2.85 Å. There are twenty-four inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.33–2.91 Å. In the second Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.29–2.80 Å. In the third Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.32–2.89 Å. In the fourth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.28–2.90 Å. In the fifth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.31–2.86 Å. In the sixth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.36–2.67 Å. In the seventh Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.33–2.89 Å. In the eighth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.33–2.84 Å. In the ninth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.27–2.86 Å. In the tenth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.34–2.91 Å. In the eleventh Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.31–2.90 Å. In the twelfth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.33–2.91 Å. In the thirteenth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.32–2.86 Å. In the fourteenth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.33–2.87 Å. In the fifteenth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.33–2.87 Å. In the sixteenth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.31–2.92 Å. In the seventeenth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.35–2.89 Å. In the eighteenth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.37–2.83 Å. In the nineteenth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.33–2.83 Å. In the twentieth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.35–2.92 Å. In the twenty-first Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.29–2.92 Å. In the twenty-second Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.31–2.83 Å. In the twenty-third Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.32–2.87 Å. In the twenty-fourth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.32–2.78 Å. There are twenty-eight inequivalent Co+3.14+ sites. In the first Co+3.14+ site, Co+3.14+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CoO6 octahedra and corners with two CoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 12–13°. There are a spread of Co–O bond distances ranging from 1.93–2.13 Å. In the second Co+3.14+ site, Co+3.14+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CoO6 octahedra and corners with two CoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 6–9°. There are a spread of Co–O bond distances ranging from 1.85–2.30 Å. In the third Co+3.14+ site, Co+3.14+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CoO6 octahedra and corners with two CoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 9–14°. There are a spread of Co–O bond distances ranging from 1.92–2.22 Å. In the fourth Co+3.14+ site, Co+3.14+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CoO6 octahedra, a cornercorner with one CoO4 tetrahedra, and a cornercorner with one CuO4 tetrahedra. The corner-sharing octahedra tilt angles range from 4–14°. There are a spread of Co–O bond distances ranging from 1.90–2.16 Å. In the fifth Co+3.14+ site, Co+3.14+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CoO6 octahedra, a cornercorner with one CoO4 tetrahedra, and a cornercorner with one CuO4 tetrahedra. The corner-sharing octahedra tilt angles range from 7–13°. There are a spread of Co–O bond distances ranging from 1.86–2.22 Å. In the sixth Co+3.14+ site, Co+3.14+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CoO6 octahedra and corners with two CoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 9–13°. There are a spread of Co–O bond distances ranging from 1.92–2.19 Å. In the seventh Co+3.14+ site, Co+3.14+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CoO6 octahedra, a cornercorner with one CoO4 tetrahedra, and a cornercorner with one CuO4 tetrahedra. The corner-sharing octahedra tilt angles range from 7–14°. There are a spread of Co–O bond distances ranging from 1.92–2.12 Å. In the eighth Co+3.14+ site, Co+3.14+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CoO6 octahedra, a cornercorner with one CoO4 tetrahedra, and a cornercorner with one CuO4 tetrahedra. The corner-sharing octahedra tilt angles range from 3–15°. There are a spread of Co–O bond distances ranging from 1.91–2.19 Å. In the ninth Co+3.14+ site, Co+3.14+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CoO6 octahedra and corners with two CoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 7–14°. There are a spread of Co–O bond distances ranging from 1.94–2.17 Å. In the tenth Co+3.14+ site, Co+3.14+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CoO6 octahedra, a cornercorner with one CoO4 tetrahedra, and a cornercorner with one CuO4 tetrahedra. The corner-sharing octahedra tilt angles range from 3–13°. There are a spread of Co–O bond distances ranging from 1.85–2.29 Å. In the eleventh Co+3.14+ site, Co+3.14+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CoO6 octahedra, a cornercorner with one CoO4 tetrahedra, and a cornercorner with one CuO4 tetrahedra. The corner-sharing octahedra tilt angles range from 7–13°. There are a spread of Co–O bond distances ranging from 1.91–2.14 Å. In the twelfth Co+3.14+ site, Co+3.14+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CoO6 octahedra, a cornercorner with one CoO4 tetrahedra, and a cornercorner with one CuO4 tetrahedra. The corner-sharing octahedra tilt angles range from 8–15°. There are a spread of Co–O bond distances ranging from 1.91–2.21 Å. In the thirteenth Co+3.14+ site, Co+3.14+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CoO6 octahedra and corners with two CoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 8–13°. There are a spread of Co–O bond distances ranging from 1.91–2.25 Å. In the fourteenth Co+3.14+ site, Co+3.14+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CoO6 octahedra and corners with two CoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 6–12°. There are a spread of Co–O bond distances ranging from 1.84–2.30 Å. In the fifteenth Co+3.14+ site, Co+3.14+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CoO6 octahedra, a cornercorner with one CoO4 tetrahedra, and a cornercorner with one CuO4 tetrahedra. The corner-sharing octahedra tilt angles range from 9–13°. There are a spread of Co–O bond distances ranging from 1.86–2.17 Å. In the sixteenth Co+3.14+ site, Co+3.14+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CoO6 octahedra and corners with two CoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 8–12°. There are a spread of Co–O bond distances ranging from 1.90–2.30 Å. In the seventeenth Co+3.14+ site, Co+3.14+ is bonded to four O2- atoms to form CoO4 tetrahedra that share corners with two CoO6 octahedra and corners with two CoO4 tetrahedra. The corner-sharing octahedral tilt angles are 35°. There are a spread of Co–O bond distances ranging from 1.81–1.96 Å. In the eighteenth Co+3.14+ site, Co+3.14+ is bonded to four O2- atoms to form CoO4 tetrahedra that share corners with two CoO6 octahedra, a cornercorner with one CoO4 tetrahedra, and a cornercorner with one CuO4 tetrahedra. The corner-sharing octahedra tilt angles range from 28–33°. There are a spread of Co–O bond distances ranging from 1.81–1.95 Å. In the nineteenth Co+3.14+ site, Co+3.14+ is bonded to four O2- atoms to form CoO4 tetrahedra that share corners with two CoO6 octahedra and corners with two CoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 33–35°. There are a spread of Co–O bond distances ranging from 1.81–1.97 Å. In the twentieth Co+3.14+ site, Co+3.14+ is bonded to four O2- atoms to form CoO4 tetrahedra that share corners with two CoO6 octahedra and corners with two CoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 34–36°. There are a spread of Co–O bond distances ranging from 1.80–1.96 Å. In the twenty-first Co+3.14+ site, Co+3.14+ is bonded to four O2- atoms to form CoO4 tetrahedra that share corners with two CoO6 octahedra, a cornercorner with one CoO4 tetrahedra, and a cornercorner with one CuO4 tetrahedra. The corner-sharing octahedra tilt angles range from 29–34°. There are a spread of Co–O bond distances r

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr2O3 by Materials Project

Sr2O3 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. there are two inequivalent Sr sites. In the first Sr site, Sr is bonded to twelve equivalent O atoms to form SrO12 cuboctahedra that share corners with twelve equivalent SrO12 cuboctahedra, faces with six equivalent SrO12 cuboctahedra, and faces with eight equivalent SrO6 octahedra. All Sr–O bond lengths are 3.24 Å. In the second Sr site, Sr is bonded to six equivalent O atoms to form SrO6 octahedra that share corners with six equivalent SrO6 octahedra and faces with eight equivalent SrO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Sr–O bond lengths are 2.29 Å. O is bonded in a linear geometry to six Sr atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr2Mg by Materials Project

Sr2Mg1 crystallizes in the monoclinic C2/m space group. The structure is two-dimensional and consists of one Sr2Mg1 sheet oriented in the (0, 0, 1) direction. there are two inequivalent Sr sites. In the first Sr site, Sr is bonded in a 12-coordinate geometry to two equivalent Mg atoms. Both Sr–Mg bond lengths are 3.69 Å. In the second Sr site, Sr is bonded in a 4-coordinate geometry to five equivalent Mg atoms. There are a spread of Sr–Mg bond distances ranging from 3.68–3.94 Å. Mg is bonded in a 9-coordinate geometry to seven Sr and two equivalent Mg atoms. Both Mg–Mg bond lengths are 3.10 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr5V3H6(O3F8)2 by Materials Project

Sr5V3H6(O3F8)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are five inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 7-coordinate geometry to two O2- and six F1- atoms. There are one shorter (2.71 Å) and one longer (2.85 Å) Sr–O bond lengths. There are a spread of Sr–F bond distances ranging from 2.39–2.58 Å. In the second Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to three O2- and six F1- atoms. There are a spread of Sr–O bond distances ranging from 2.66–2.76 Å. There are a spread of Sr–F bond distances ranging from 2.43–3.04 Å. In the third Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to four O2- and five F1- atoms. There are a spread of Sr–O bond distances ranging from 2.56–2.70 Å. There are a spread of Sr–F bond distances ranging from 2.42–3.06 Å. In the fourth Sr2+ site, Sr2+ is bonded in a 11-coordinate geometry to eleven F1- atoms. There are a spread of Sr–F bond distances ranging from 2.53–3.09 Å. In the fifth Sr2+ site, Sr2+ is bonded in a 12-coordinate geometry to twelve F1- atoms. There are a spread of Sr–F bond distances ranging from 2.56–3.03 Å. There are three inequivalent V4+ sites. In the first V4+ site, V4+ is bonded in a distorted octahedral geometry to one O2- and five F1- atoms. The V–O bond length is 1.65 Å. There are a spread of V–F bond distances ranging from 1.95–2.12 Å. In the second V4+ site, V4+ is bonded in a distorted octahedral geometry to one O2- and five F1- atoms. The V–O bond length is 1.66 Å. There are a spread of V–F bond distances ranging from 1.91–2.17 Å. In the third V4+ site, V4+ is bonded in a distorted octahedral geometry to one O2- and five F1- atoms. The V–O bond length is 1.67 Å. There are a spread of V–F bond distances ranging from 1.94–2.11 Å. There are six inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a water-like geometry to two Sr2+ and two H1+ atoms. In the second O2- site, O2- is bonded in a water-like geometry to two Sr2+ and two H1+ atoms. In the third O2- site, O2- is bonded in a water-like geometry to two Sr2+ and two H1+ atoms. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one Sr2+ and one V4+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Sr2+ and one V4+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one Sr2+ and one V4+ atom. There are sixteen inequivalent F1- sites. In the first F1- site, F1- is bonded in a 1-coordinate geometry to two Sr2+ and one V4+ atom. In the second F1- site, F1- is bonded in a 3-coordinate geometry to two Sr2+ and one V4+ atom. In the third F1- site, F1- is bonded in a distorted bent 150 degrees geometry to one Sr2+ and one V4+ atom. In the fourth F1- site, F1- is bonded in a distorted bent 120 degrees geometry to one Sr2+ and one V4+ atom. In the fifth F1- site, F1- is bonded in a trigonal planar geometry to three Sr2+ atoms. In the sixth F1- site, F1- is bonded in a 4-coordinate geometry to three Sr2+ and one V4+ atom. In the seventh F1- site, F1- is bonded in a 4-coordinate geometry to three Sr2+ and one V4+ atom. In the eighth F1- site, F1- is bonded in a 1-coordinate geometry to two Sr2+ and one V4+ atom. In the ninth F1- site, F1- is bonded in a 1-coordinate geometry to three Sr2+ and one V4+ atom. In the tenth F1- site, F1- is bonded in a 3-coordinate geometry to two Sr2+ and one V4+ atom. In the eleventh F1- site, F1- is bonded in a 1-coordinate geometry to two Sr2+ and one V4+ atom. In the twelfth F1- site, F1- is bonded in a 4-coordinate geometry to three Sr2+ and one V4+ atom. In the thirteenth F1- site, F1- is bonded in a 1-coordinate geometry to three Sr2+ and one V4+ atom. In the fourteenth F1- site, F1- is bonded in a 1-coordinate geometry to four Sr2+ and one V4+ atom. In the fifteenth F1- site, F1- is bonded in a distorted single-bond geometry to three Sr2+ and one V4+ atom. In the sixteenth F1- site, F1- is bonded in a distorted tetrahedral geometry to three Sr2+ and one V4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr2CaTi3O9 by Materials Project

Sr2CaTi3O9 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eight inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are a spread of Sr–O bond distances ranging from 2.54–3.15 Å. In the second Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form distorted SrO12 cuboctahedra that share corners with ten SrO12 cuboctahedra, faces with two SrO12 cuboctahedra, and faces with eight TiO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.52–3.00 Å. In the third Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form distorted SrO12 cuboctahedra that share corners with eight SrO12 cuboctahedra, faces with four SrO12 cuboctahedra, and faces with eight TiO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.56–3.09 Å. In the fourth Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form distorted SrO12 cuboctahedra that share corners with six SrO12 cuboctahedra, faces with two equivalent SrO12 cuboctahedra, and faces with eight TiO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.55–3.09 Å. In the fifth Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form distorted SrO12 cuboctahedra that share corners with six SrO12 cuboctahedra, faces with two equivalent SrO12 cuboctahedra, and faces with eight TiO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.56–3.02 Å. In the sixth Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form distorted SrO12 cuboctahedra that share corners with three SrO12 cuboctahedra, faces with five SrO12 cuboctahedra, and faces with eight TiO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.60–3.09 Å. In the seventh Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form distorted SrO12 cuboctahedra that share corners with three SrO12 cuboctahedra, faces with five SrO12 cuboctahedra, and faces with eight TiO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.58–3.12 Å. In the eighth Sr2+ site, Sr2+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are a spread of Sr–O bond distances ranging from 2.58–3.12 Å. There are four inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 11-coordinate geometry to eleven O2- atoms. There are a spread of Ca–O bond distances ranging from 2.48–2.96 Å. In the second Ca2+ site, Ca2+ is bonded in a 12-coordinate geometry to eleven O2- atoms. There are a spread of Ca–O bond distances ranging from 2.41–2.97 Å. In the third Ca2+ site, Ca2+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are a spread of Ca–O bond distances ranging from 2.46–3.08 Å. In the fourth Ca2+ site, Ca2+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are a spread of Ca–O bond distances ranging from 2.42–3.06 Å. There are twelve inequivalent Ti4+ sites. In the first Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six TiO6 octahedra and faces with three SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 12–21°. There are a spread of Ti–O bond distances ranging from 1.91–2.04 Å. In the second Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six TiO6 octahedra and faces with five SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 10–17°. There are a spread of Ti–O bond distances ranging from 1.91–2.05 Å. In the third Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six TiO6 octahedra and faces with four SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 10–19°. There are a spread of Ti–O bond distances ranging from 1.91–2.06 Å. In the fourth Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six TiO6 octahedra and faces with two SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 10–18°. There are a spread of Ti–O bond distances ranging from 1.91–2.06 Å. In the fifth Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six TiO6 octahedra and faces with six SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 10–16°. There are a spread of Ti–O bond distances ranging from 1.90–2.06 Å. In the sixth Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six TiO6 octahedra and faces with four SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 13–21°. There are a spread of Ti–O bond distances ranging from 1.90–2.06 Å. In the seventh Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six TiO6 octahedra and faces with four SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 10–16°. There are a spread of Ti–O bond distances ranging from 1.91–2.05 Å. In the eighth Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six TiO6 octahedra and faces with five SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 11–19°. There are a spread of Ti–O bond distances ranging from 1.91–2.06 Å. In the ninth Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six TiO6 octahedra and faces with three SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 13–21°. There are a spread of Ti–O bond distances ranging from 1.91–2.04 Å. In the tenth Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six TiO6 octahedra and faces with four SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 10–18°. There are a spread of Ti–O bond distances ranging from 1.91–2.06 Å. In the eleventh Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six TiO6 octahedra and faces with six SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 10–17°. There are a spread of Ti–O bond distances ranging from 1.90–2.06 Å. In the twelfth Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six TiO6 octahedra and faces with two SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 12–21°. There are a spread of Ti–O bond distances ranging from 1.90–2.06 Å. There are thirty-six inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+, one Ca2+, and two Ti4+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two Sr2+, two Ca2+, and two Ti4+ atoms. In the third O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+, one Ca2+, and two Ti4+ atoms. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+, one Ca2+, and two Ti4+ atoms. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to two Sr2+, two Ca2+, and two Ti4+ atoms. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+, one Ca2+, and two Ti4+ atoms. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+, one Ca2+, and two Ti4+ atoms. In the eighth O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+, one Ca2+, and two Ti4+ atoms. In the ninth O2- site, O2- is bonded in a 2-coordinate geometry to two Sr2+, two Ca2+, and two Ti4+ atoms. In the tenth O2- site, O2- is bonded in a 2-coordinate geometry to two Sr2+, two Ca2+, and two Ti4+ atoms. In the eleventh O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+, one Ca2+, and two Ti4+ atoms. In the twelfth O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+, one Ca2+, and two Ti4+ atoms. In the thirteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Sr2+, two Ca2+, and two Ti4+ atoms. In the fourteenth O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+, one Ca2+, and two Ti4+ atoms. In the fifteenth O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+, one Ca2+, and two Ti4+ atoms. In the sixteenth O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+, one Ca2+, and two Ti4+ atoms. In the seventeenth O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+, one Ca2+, and two Ti4+ atoms. In the eighteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Sr2+, two Ca2+, and two Ti4+ atoms. In the nineteenth O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+, one Ca2+, and two Ti4+ atoms. In the twentieth O2- site, O2- is bonded in a 2-coordinate geometry to two Sr2+, two Ca2+, and two Ti4+ atoms. In the twenty-first O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+, one Ca2+, and two Ti4+ atoms. In the twenty-second O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+, one Ca2+, and two Ti4+ atoms. In the twenty-third O2- site, O2- is bonded in a 2-coordinate geometry to two Sr2+, two Ca2+, and two Ti4+ atoms. In the twenty-fourth O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+, one Ca2+, and two Ti4+ atoms. In the twenty-fifth O2- site, O2- is bonded in a 2-coordinate geometry to two Sr2+, two equivalent Ca2+, and two Ti4+ atoms. In the twenty-sixth O2- site, O2- is bonded in a 2-coordinate geometry to one Sr2+, three Ca2+, and two Ti4+ atoms. In the twenty-seventh O2- site, O2- is bonded in a 3-coordinate geometry to one Sr2+, three Ca2+, and two Ti4+ atoms. In the twenty-eighth O2- site, O2- is bonded in a 5-coordinate geometry to two equivalent Sr2+, one Ca2+, and two Ti4+ atoms. In the twenty-ninth O2- site, O2- is bonded in a 5-coordinate geometry to two equivalent Sr2+, two Ca2+, and two Ti4+ atoms. In the thirtieth O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+ and two Ti4+ atoms. In the thirty-first O2- site, O2- is bonded in a 2-coordinate geometry to four Sr2+ and two Ti4+ atoms. In the thirty-second O2- site, O2- is bonded in a 2-coordinate geometry to four Sr2+ and two Ti4+ atoms. In the thirty-third O2- site, O2- is bonded in a 2-coordinate geometry to four Sr2+ and two Ti4+ atoms. In the thirty-fourth O2- site, O2- is bonded in a 2-coordinate geometry to four Sr2+ and two Ti4+ atoms. In the thirty-fifth O2- site, O2- is bonded in a 2-coordinate geometry to four Sr2+ and two Ti4+ atoms. In the thirty-sixth O2- site, O2- is bonded in a 2-coordinate geometry to four Sr2+ and two Ti4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SrAl(OF2)2 by Materials Project

SrAl(OF2)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Sr is bonded in a 8-coordinate geometry to two equivalent O and six F atoms. There are one shorter (2.69 Å) and one longer (2.71 Å) Sr–O bond lengths. There are a spread of Sr–F bond distances ranging from 2.44–2.67 Å. Al is bonded in a 6-coordinate geometry to two equivalent O and four F atoms. There are one shorter (1.96 Å) and one longer (2.09 Å) Al–O bond lengths. There are a spread of Al–F bond distances ranging from 1.73–1.83 Å. There are two inequivalent O sites. In the first O site, O is bonded in a 1-coordinate geometry to two equivalent Al and one O atom. The O–O bond length is 1.44 Å. In the second O site, O is bonded in a bent 150 degrees geometry to two equivalent Sr atoms. There are four inequivalent F sites. In the first F site, F is bonded in a distorted bent 150 degrees geometry to one Sr and one Al atom. In the second F site, F is bonded in a distorted trigonal planar geometry to two equivalent Sr and one Al atom. In the third F site, F is bonded in a distorted bent 120 degrees geometry to one Sr and one Al atom. In the fourth F site, F is bonded in a 1-coordinate geometry to two equivalent Sr and one Al atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr3(Cu2Sn)4 by Materials Project

Sr3Cu8Sn4 is Hexagonal Laves-derived structured and crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Sr is bonded in a 12-coordinate geometry to eight Cu and six Sn atoms. There are a spread of Sr–Cu bond distances ranging from 3.28–3.67 Å. There are a spread of Sr–Sn bond distances ranging from 3.37–3.46 Å. There are four inequivalent Cu sites. In the first Cu site, Cu is bonded in a 12-coordinate geometry to four equivalent Sr, four Cu, and four Sn atoms. There are two shorter (2.65 Å) and two longer (2.75 Å) Cu–Cu bond lengths. There are a spread of Cu–Sn bond distances ranging from 2.80–3.02 Å. In the second Cu site, Cu is bonded to two equivalent Sr, seven Cu, and three equivalent Sn atoms to form distorted CuSr2Cu7Sn3 cuboctahedra that share corners with four equivalent CuSr2Cu7Sn3 cuboctahedra, corners with five equivalent SnSr4Cu8 cuboctahedra, faces with six equivalent SnSr4Cu8 cuboctahedra, and faces with eight CuSr2Cu7Sn3 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.53–2.76 Å. There are one shorter (2.74 Å) and two longer (2.77 Å) Cu–Sn bond lengths. In the third Cu site, Cu is bonded in a distorted q6 geometry to six equivalent Sr and four Sn atoms. There are three shorter (2.75 Å) and one longer (2.76 Å) Cu–Sn bond lengths. In the fourth Cu site, Cu is bonded to nine Cu and three equivalent Sn atoms to form CuCu9Sn3 cuboctahedra that share corners with three equivalent SnSr4Cu8 cuboctahedra, faces with six equivalent SnSr4Cu8 cuboctahedra, and faces with eight CuSr2Cu7Sn3 cuboctahedra. All Cu–Sn bond lengths are 2.74 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded to four equivalent Sr and eight Cu atoms to form distorted SnSr4Cu8 cuboctahedra that share corners with four equivalent SnSr4Cu8 cuboctahedra, corners with six CuSr2Cu7Sn3 cuboctahedra, faces with eight CuSr2Cu7Sn3 cuboctahedra, and faces with eight equivalent SnSr4Cu8 cuboctahedra. In the second Sn site, Sn is bonded in a 10-coordinate geometry to six equivalent Sr and four Cu atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr3NbO6 by Materials Project

Sr3NbO6 is (Cubic) Perovskite-like structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. there are two inequivalent Sr sites. In the first Sr site, Sr is bonded to twelve equivalent O atoms to form SrO12 cuboctahedra that share corners with twelve equivalent SrO12 cuboctahedra, faces with six equivalent SrO12 cuboctahedra, faces with four equivalent SrO6 octahedra, and faces with four equivalent NbO6 octahedra. All Sr–O bond lengths are 3.09 Å. In the second Sr site, Sr is bonded to six equivalent O atoms to form SrO6 octahedra that share corners with six equivalent NbO6 octahedra and faces with eight equivalent SrO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Sr–O bond lengths are 2.36 Å. Nb is bonded to six equivalent O atoms to form NbO6 octahedra that share corners with six equivalent SrO6 octahedra and faces with eight equivalent SrO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Nb–O bond lengths are 2.00 Å. O is bonded in a distorted linear geometry to five Sr and one Nb atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr2Mg by Materials Project

Sr2Mg1 crystallizes in the orthorhombic Cmcm space group. The structure is two-dimensional and consists of two Sr2Mg1 sheets oriented in the (0, 1, 0) direction. there are two inequivalent Sr sites. In the first Sr site, Sr is bonded in a 6-coordinate geometry to six equivalent Mg atoms. There are two shorter (3.55 Å) and four longer (3.77 Å) Sr–Mg bond lengths. In the second Sr site, Sr is bonded in a 12-coordinate geometry to two equivalent Mg atoms. Both Sr–Mg bond lengths are 3.65 Å. Mg is bonded in a body-centered cubic geometry to eight Sr atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr2Mg by Materials Project

Sr2Mg1 crystallizes in the monoclinic C2/m space group. The structure is two-dimensional and consists of two Sr2Mg1 sheets oriented in the (1, 0, 0) direction. there are two inequivalent Sr sites. In the first Sr site, Sr is bonded in a 4-coordinate geometry to four equivalent Mg atoms. There are two shorter (3.62 Å) and two longer (3.64 Å) Sr–Mg bond lengths. In the second Sr site, Sr is bonded in a 4-coordinate geometry to four equivalent Mg atoms. There are two shorter (3.60 Å) and two longer (3.63 Å) Sr–Mg bond lengths. Mg is bonded in a body-centered cubic geometry to eight Sr atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr5Cr3ClO12 by Materials Project

Sr5(CrO4)3Cl crystallizes in the hexagonal P6_3 space group. The structure is three-dimensional. there are five inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to six O2- and two equivalent Cl1- atoms. There are a spread of Sr–O bond distances ranging from 2.48–2.90 Å. There are one shorter (3.17 Å) and one longer (3.21 Å) Sr–Cl bond lengths. In the second Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.59–3.01 Å. In the third Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to six O2- and two equivalent Cl1- atoms. There are a spread of Sr–O bond distances ranging from 2.48–2.90 Å. There are one shorter (3.17 Å) and one longer (3.21 Å) Sr–Cl bond lengths. In the fourth Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.61–2.87 Å. In the fifth Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to six O2- and two equivalent Cl1- atoms. There are a spread of Sr–O bond distances ranging from 2.48–2.90 Å. There are one shorter (3.17 Å) and one longer (3.21 Å) Sr–Cl bond lengths. Cr5+ is bonded in a tetrahedral geometry to four O2- atoms. There is two shorter (1.72 Å) and two longer (1.73 Å) Cr–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to three Sr2+ and one Cr5+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to three Sr2+ and one Cr5+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to three Sr2+ and one Cr5+ atom. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+ and one Cr5+ atom. Cl1- is bonded to six Sr2+ atoms to form distorted face-sharing ClSr6 octahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr2Al by Materials Project

Sr2Al crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are two inequivalent Sr sites. In the first Sr site, Sr is bonded in a 4-coordinate geometry to four equivalent Al atoms. There are a spread of Sr–Al bond distances ranging from 3.40–3.72 Å. In the second Sr site, Sr is bonded in a distorted see-saw-like geometry to four equivalent Al atoms. There are a spread of Sr–Al bond distances ranging from 3.41–3.51 Å. Al is bonded in a 8-coordinate geometry to eight Sr atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr10P6ClO24F by Materials Project

Sr10P6O24ClF crystallizes in the trigonal P3 space group. The structure is three-dimensional. there are six inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.59–2.98 Å. In the second Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.58–2.93 Å. In the third Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.56–3.04 Å. In the fourth Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.59–2.97 Å. In the fifth Sr2+ site, Sr2+ is bonded in a 7-coordinate geometry to six O2- and one Cl1- atom. There are a spread of Sr–O bond distances ranging from 2.44–2.89 Å. The Sr–Cl bond length is 2.86 Å. In the sixth Sr2+ site, Sr2+ is bonded in a 7-coordinate geometry to six O2- and one F1- atom. There are a spread of Sr–O bond distances ranging from 2.55–2.94 Å. The Sr–F bond length is 2.48 Å. There are two 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 1.55–1.57 Å. In the second 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 eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to three Sr2+ and one P5+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+ and one P5+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to three Sr2+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to three Sr2+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to three Sr2+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to three Sr2+ and one P5+ atom. In the seventh O2- site, O2- is bonded in a 1-coordinate geometry to three Sr2+ and one P5+ atom. In the eighth O2- site, O2- is bonded in a 1-coordinate geometry to three Sr2+ and one P5+ atom. Cl1- is bonded in a 3-coordinate geometry to three equivalent Sr2+ atoms. F1- is bonded in a distorted trigonal non-coplanar geometry to three equivalent Sr2+ atoms.

36 MATERIALS SCIENCE↗