DOI: 10.17188/1475899
title: Materials Data on Ba3Sr5Co2(CuO4)6 by Materials Project

description: Ba3Sr5Co2(CuO4)6 is (Cubic) Perovskite-derived structured and crystallizes in the monoclinic Pm space group. The structure is three-dimensional. there are three inequivalent Ba sites. In the first Ba site, Ba is bonded to twelve O atoms to form BaO12 cuboctahedra that share corners with four equivalent BaO12 cuboctahedra, corners with eight SrO12 cuboctahedra, faces with two equivalent BaO12 cuboctahedra, faces with four SrO12 cuboctahedra, faces with two equivalent CoO6 octahedra, and faces with six CuO6 octahedra. There are a spread of Ba–O bond distances ranging from 2.78–2.87 Å. In the second Ba site, Ba is bonded to twelve O atoms to form BaO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with two equivalent SrO12 cuboctahedra, faces with four BaO12 cuboctahedra, faces with two equivalent CoO6 octahedra, and faces with six CuO6 octahedra. There are a spread of Ba–O bond distances ranging from 2.84–2.87 Å. In the third Ba site, Ba is bonded to twelve O atoms to form BaO12 cuboctahedra that share corners with four equivalent BaO12 cuboctahedra, corners with eight SrO12 cuboctahedra, faces with two equivalent BaO12 cuboctahedra, faces with four SrO12 cuboctahedra, faces with two equivalent CoO6 octahedra, and faces with six CuO6 octahedra. There are a spread of Ba–O bond distances ranging from 2.77–2.87 Å. There are five inequivalent Sr sites. In the first Sr site, Sr is bonded to twelve O atoms to form SrO12 cuboctahedra that share corners with four equivalent BaO12 cuboctahedra, corners with eight SrO12 cuboctahedra, faces with two equivalent BaO12 cuboctahedra, faces with four SrO12 cuboctahedra, faces with two equivalent CoO6 octahedra, and faces with six CuO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.65–2.80 Å. In the second Sr site, Sr is bonded to twelve O atoms to form SrO12 cuboctahedra that share corners with four equivalent SrO12 cuboctahedra, corners with eight BaO12 cuboctahedra, faces with two equivalent BaO12 cuboctahedra, faces with four SrO12 cuboctahedra, faces with two equivalent CoO6 octahedra, and faces with six CuO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.67–2.82 Å. In the third Sr site, Sr is bonded to twelve O atoms to form SrO12 cuboctahedra that share corners with four equivalent SrO12 cuboctahedra, corners with eight BaO12 cuboctahedra, faces with six SrO12 cuboctahedra, faces with two equivalent CoO6 octahedra, and faces with six CuO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.65–2.79 Å. In the fourth Sr site, Sr is bonded to twelve O atoms to form SrO12 cuboctahedra that share corners with four equivalent BaO12 cuboctahedra, corners with eight SrO12 cuboctahedra, faces with two equivalent BaO12 cuboctahedra, faces with four SrO12 cuboctahedra, faces with two equivalent CoO6 octahedra, and faces with six CuO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.68–2.82 Å. In the fifth Sr site, Sr is bonded to twelve O atoms to form SrO12 cuboctahedra that share corners with four equivalent BaO12 cuboctahedra, corners with eight SrO12 cuboctahedra, faces with two equivalent SrO12 cuboctahedra, faces with four BaO12 cuboctahedra, faces with two equivalent CoO6 octahedra, and faces with six CuO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.68–2.84 Å. Co is bonded to six O atoms to form CoO6 octahedra that share corners with two equivalent CoO6 octahedra, corners with four CuO6 octahedra, faces with three BaO12 cuboctahedra, and faces with five SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–3°. There are a spread of Co–O bond distances ranging from 1.88–1.98 Å. There are three inequivalent Cu sites. In the first Cu site, Cu is bonded to six O atoms to form CuO6 octahedra that share corners with six CuO6 octahedra, faces with three BaO12 cuboctahedra, and faces with five SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–6°. There is three shorter (1.97 Å) and three longer (1.98 Å) Cu–O bond length. In the second Cu site, Cu is bonded to six O atoms to form CuO6 octahedra that share corners with two equivalent CoO6 octahedra, corners with four CuO6 octahedra, faces with three BaO12 cuboctahedra, and faces with five SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–6°. There are a spread of Cu–O bond distances ranging from 1.95–2.03 Å. In the third Cu site, Cu is bonded to six O atoms to form CuO6 octahedra that share corners with two equivalent CoO6 octahedra, corners with four CuO6 octahedra, faces with three BaO12 cuboctahedra, and faces with five SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–7°. There are a spread of Cu–O bond distances ranging from 1.95–2.02 Å. There are sixteen inequivalent O sites. In the first O site, O is bonded to two Ba, two Sr, and two equivalent Cu atoms to form distorted OBa2Sr2Cu2 octahedra that share corners with fourteen OBa2Sr2CoCu octahedra, edges with four OBa2Sr2Cu2 octahedra, and faces with six OBa2Sr2Cu2 octahedra. The corner-sharing octahedra tilt angles range from 0–60°. In the second O site, O is bonded to two Ba, two Sr, and two equivalent Cu atoms to form distorted OBa2Sr2Cu2 octahedra that share corners with fourteen OBa2Sr2CoCu octahedra, edges with four OBa2Sr2Cu2 octahedra, and faces with six OBaSr3Cu2 octahedra. The corner-sharing octahedra tilt angles range from 1–64°. In the third O site, O is bonded to two Ba, two Sr, and two equivalent Cu atoms to form distorted OBa2Sr2Cu2 octahedra that share corners with eighteen OBaSr3Cu2 octahedra, edges with four OBa2Sr2Cu2 octahedra, and faces with four OBa3SrCu2 octahedra. The corner-sharing octahedra tilt angles range from 1–63°. In the fourth O site, O is bonded to two Ba, two Sr, and two equivalent Co atoms to form distorted OBa2Sr2Co2 octahedra that share corners with sixteen OBaSr3Cu2 octahedra, edges with four OBa2Sr2Cu2 octahedra, and faces with four OBa3SrCoCu octahedra. The corner-sharing octahedra tilt angles range from 0–63°. In the fifth O site, O is bonded to one Ba, three Sr, and two equivalent Cu atoms to form distorted OBaSr3Cu2 octahedra that share corners with ten OBa2Sr2CoCu octahedra, edges with four OBaSr3Cu2 octahedra, and faces with six OBa2Sr2Cu2 octahedra. The corner-sharing octahedra tilt angles range from 5–60°. In the sixth O site, O is bonded to one Ba, three Sr, and two equivalent Cu atoms to form distorted OBaSr3Cu2 octahedra that share corners with fourteen OBa2Sr2CoCu octahedra, edges with two equivalent OBaSr3Cu2 octahedra, and faces with six OBaSr3Cu2 octahedra. The corner-sharing octahedra tilt angles range from 1–64°. In the seventh O site, O is bonded to one Ba, three Sr, and two equivalent Cu atoms to form distorted OBaSr3Cu2 octahedra that share corners with eighteen OBaSr3Cu2 octahedra, edges with two equivalent OBaSr3Cu2 octahedra, and faces with four OBa3SrCu2 octahedra. The corner-sharing octahedra tilt angles range from 1–63°. In the eighth O site, O is bonded in a distorted linear geometry to one Ba, three Sr, and two equivalent Co atoms. In the ninth O site, O is bonded in a distorted linear geometry to four Sr and two Cu atoms. In the tenth O site, O is bonded in a distorted linear geometry to four Sr, one Co, and one Cu atom. In the eleventh O site, O is bonded to three Ba, one Sr, and two Cu atoms to form distorted OBa3SrCu2 octahedra that share corners with sixteen OBaSr3Cu2 octahedra, edges with four OBa3SrCu2 octahedra, and faces with seven OBaSr3Cu2 octahedra. The corner-sharing octahedra tilt angles range from 2–62°. In the twelfth O site, O is bonded to three Ba, one Sr, one Co, and one Cu atom to form distorted OBa3SrCoCu octahedra that share corners with eighteen OBaSr3Cu2 octahedra, edges with four OBa3SrCu2 octahedra, and faces with six OBaSr3Cu2 octahedra. The corner-sharing octahedra tilt angles range from 2–64°. In the thirteenth O site, O is bonded to one Ba, three Sr, and two Cu atoms to form distorted OBaSr3Cu2 octahedra that share corners with twelve OBa2Sr2Cu2 octahedra, edges with two equivalent OBaSr3Cu2 octahedra, and faces with six OBa2Sr2Cu2 octahedra. The corner-sharing octahedra tilt angles range from 5–63°. In the fourteenth O site, O is bonded to two Ba, two Sr, and two Cu atoms to form distorted OBa2Sr2Cu2 octahedra that share corners with sixteen OBaSr3Cu2 octahedra, edges with four OBa2Sr2Cu2 octahedra, and faces with six OBa2Sr2Cu2 octahedra. The corner-sharing octahedra tilt angles range from 2–63°. In the fifteenth O site, O is bonded in a distorted linear geometry to one Ba, three Sr, one Co, and one Cu atom. In the sixteenth O site, O is bonded to two Ba, two Sr, one Co, and one Cu atom to form a mixture of distorted face, edge, and corner-sharing OBa2Sr2CoCu octahedra. The corner-sharing octahedra tilt angles range from 2–64°.