Materials Data on La7SmCo5(CuO8)3 by Materials Project

Dataset · Thu Jun 04 04:00:00 EDT 2020

DOI:https://doi.org/10.17188/1475762· OSTI ID:1475762

SmLa7Co5(CuO8)3 is (Cubic) Perovskite-derived structured and crystallizes in the monoclinic Cm space group. The structure is three-dimensional. Sm3+ is bonded to twelve O2- atoms to form SmO12 cuboctahedra that share corners with twelve LaO12 cuboctahedra, faces with six LaO12 cuboctahedra, faces with three CuO6 octahedra, and faces with five CoO6 octahedra. There are a spread of Sm–O bond distances ranging from 2.68–2.70 Å. There are five inequivalent La3+ sites. In the first La3+ site, La3+ is bonded to twelve O2- atoms to form LaO12 cuboctahedra that share corners with twelve LaO12 cuboctahedra, faces with two equivalent SmO12 cuboctahedra, faces with four LaO12 cuboctahedra, faces with three CuO6 octahedra, and faces with five CoO6 octahedra. There are a spread of La–O bond distances ranging from 2.70–2.73 Å. In the second La3+ site, La3+ is bonded to twelve O2- atoms to form LaO12 cuboctahedra that share corners with four equivalent SmO12 cuboctahedra, corners with eight equivalent LaO12 cuboctahedra, faces with six LaO12 cuboctahedra, faces with three CuO6 octahedra, and faces with five CoO6 octahedra. There are a spread of La–O bond distances ranging from 2.71–2.75 Å. In the third La3+ site, La3+ is bonded to twelve O2- atoms to form LaO12 cuboctahedra that share corners with four equivalent SmO12 cuboctahedra, corners with eight LaO12 cuboctahedra, faces with six LaO12 cuboctahedra, faces with three CuO6 octahedra, and faces with five CoO6 octahedra. There are a spread of La–O bond distances ranging from 2.70–2.75 Å. In the fourth La3+ site, La3+ is bonded to twelve O2- atoms to form LaO12 cuboctahedra that share corners with twelve LaO12 cuboctahedra, faces with six LaO12 cuboctahedra, faces with three CuO6 octahedra, and faces with five CoO6 octahedra. There are a spread of La–O bond distances ranging from 2.70–2.73 Å. In the fifth La3+ site, La3+ is bonded to twelve O2- atoms to form LaO12 cuboctahedra that share corners with twelve LaO12 cuboctahedra, faces with two equivalent SmO12 cuboctahedra, faces with four equivalent LaO12 cuboctahedra, faces with three CuO6 octahedra, and faces with five CoO6 octahedra. There are a spread of La–O bond distances ranging from 2.70–2.73 Å. There are four inequivalent Co+3.60+ sites. In the first Co+3.60+ site, Co+3.60+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with two equivalent CuO6 octahedra, corners with four equivalent CoO6 octahedra, a faceface with one SmO12 cuboctahedra, and faces with seven LaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–1°. There is two shorter (1.90 Å) and four longer (1.92 Å) Co–O bond length. In the second Co+3.60+ site, Co+3.60+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with two equivalent CuO6 octahedra, corners with four CoO6 octahedra, a faceface with one SmO12 cuboctahedra, and faces with seven LaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–1°. There are a spread of Co–O bond distances ranging from 1.88–1.93 Å. In the third Co+3.60+ site, Co+3.60+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with six CoO6 octahedra, a faceface with one SmO12 cuboctahedra, and faces with seven LaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–1°. All Co–O bond lengths are 1.91 Å. In the fourth Co+3.60+ site, Co+3.60+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with two equivalent CoO6 octahedra, corners with four equivalent CuO6 octahedra, a faceface with one SmO12 cuboctahedra, and faces with seven LaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–1°. There are a spread of Co–O bond distances ranging from 1.87–1.94 Å. There are two inequivalent Cu2+ sites. In the first Cu2+ site, Cu2+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with two equivalent CoO6 octahedra, corners with four equivalent CuO6 octahedra, a faceface with one SmO12 cuboctahedra, and faces with seven LaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–1°. There are a spread of Cu–O bond distances ranging from 1.93–1.95 Å. In the second Cu2+ site, Cu2+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with two equivalent CuO6 octahedra, corners with four CoO6 octahedra, a faceface with one SmO12 cuboctahedra, and faces with seven LaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–1°. There are a spread of Cu–O bond distances ranging from 1.91–1.97 Å. There are fourteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted linear geometry to four La3+ and two Co+3.60+ atoms. In the second O2- site, O2- is bonded in a distorted linear geometry to four La3+ and two Co+3.60+ atoms. In the third O2- site, O2- is bonded in a distorted linear geometry to four La3+ and two Cu2+ atoms. In the fourth O2- site, O2- is bonded in a distorted linear geometry to four La3+, one Co+3.60+, and one Cu2+ atom. In the fifth O2- site, O2- is bonded in a distorted linear geometry to one Sm3+, three La3+, and two Co+3.60+ atoms. In the sixth O2- site, O2- is bonded in a distorted linear geometry to one Sm3+, three La3+, and two Co+3.60+ atoms. In the seventh O2- site, O2- is bonded in a distorted linear geometry to one Sm3+, three La3+, and two Cu2+ atoms. In the eighth O2- site, O2- is bonded in a distorted linear geometry to one Sm3+, three La3+, one Co+3.60+, and one Cu2+ atom. In the ninth O2- site, O2- is bonded in a distorted linear geometry to one Sm3+, three La3+, one Co+3.60+, and one Cu2+ atom. In the tenth O2- site, O2- is bonded in a distorted linear geometry to one Sm3+, three La3+, one Co+3.60+, and one Cu2+ atom. In the eleventh O2- site, O2- is bonded in a distorted linear geometry to four La3+, one Co+3.60+, and one Cu2+ atom. In the twelfth O2- site, O2- is bonded in a distorted linear geometry to four La3+, one Co+3.60+, and one Cu2+ atom. In the thirteenth O2- site, O2- is bonded in a distorted linear geometry to one Sm3+, three La3+, and two Co+3.60+ atoms. In the fourteenth O2- site, O2- is bonded in a distorted linear geometry to four La3+ and two Co+3.60+ atoms.

• Research Organization: LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
• Contributing Organization: The Materials Project; MIT; UC Berkeley; Duke; U Louvain
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 1475762
• Report Number(s): mp-1075961
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
Co-Cu-La-O-Sm
La7SmCo5(CuO8)3
crystal structure