Materials Data on Sr3La5Mn8O24 by Materials Project
Sr3La5Mn8O24 crystallizes in the monoclinic C2 space group. The structure is three-dimensional. there are three inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form distorted SrO12 cuboctahedra that share corners with four equivalent LaO12 cuboctahedra, corners with eight SrO12 cuboctahedra, and faces with eight MnO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.56–3.08 Å. In the second Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form distorted SrO12 cuboctahedra that share corners with four equivalent LaO12 cuboctahedra, corners with eight SrO12 cuboctahedra, and faces with eight MnO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.57–3.10 Å. In the third Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form distorted SrO12 cuboctahedra that share corners with four equivalent LaO12 cuboctahedra, corners with eight SrO12 cuboctahedra, and faces with eight MnO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.57–3.02 Å. There are three inequivalent La3+ sites. In the first La3+ site, La3+ is bonded in a 12-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.48–2.80 Å. In the second La3+ site, La3+ is bonded to twelve O2- atoms to form distorted LaO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra and faces with eight MnO6 octahedra. There are a spread of La–O bond distances ranging from 2.49–2.99 Å. In the third La3+ site, La3+ is bonded in a 12-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.47–2.78 Å. There are four inequivalent Mn+3.38+ sites. In the first Mn+3.38+ site, Mn+3.38+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six MnO6 octahedra, a faceface with one LaO12 cuboctahedra, and faces with three SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 11–19°. There are a spread of Mn–O bond distances ranging from 1.97–2.00 Å. In the second Mn+3.38+ site, Mn+3.38+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six MnO6 octahedra, a faceface with one LaO12 cuboctahedra, and faces with three SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 11–18°. There are a spread of Mn–O bond distances ranging from 1.97–1.99 Å. In the third Mn+3.38+ site, Mn+3.38+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six MnO6 octahedra, a faceface with one LaO12 cuboctahedra, and faces with three SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 11–19°. There are a spread of Mn–O bond distances ranging from 1.98–2.00 Å. In the fourth Mn+3.38+ site, Mn+3.38+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six MnO6 octahedra, a faceface with one LaO12 cuboctahedra, and faces with three SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 13–18°. There is three shorter (1.97 Å) and three longer (1.99 Å) Mn–O bond length. There are fourteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to two Sr2+, one La3+, and two Mn+3.38+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two Sr2+, two La3+, and two Mn+3.38+ atoms. In the third O2- site, O2- is bonded in a 5-coordinate geometry to two Sr2+, one La3+, and two Mn+3.38+ atoms. In the fourth O2- site, O2- is bonded in a 5-coordinate geometry to one Sr2+, two La3+, and two Mn+3.38+ atoms. In the fifth O2- site, O2- is bonded in a 5-coordinate geometry to one Sr2+, two La3+, and two Mn+3.38+ atoms. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to one Sr2+, three La3+, and two Mn+3.38+ atoms. In the seventh O2- site, O2- is bonded in a 5-coordinate geometry to one Sr2+, two La3+, and two Mn+3.38+ atoms. In the eighth O2- site, O2- is bonded in a 2-coordinate geometry to two Sr2+, two La3+, and two Mn+3.38+ atoms. In the ninth O2- site, O2- is bonded in a 2-coordinate geometry to two Sr2+, two equivalent La3+, and two equivalent Mn+3.38+ atoms. In the tenth O2- site, O2- is bonded in a 5-coordinate geometry to one Sr2+, three La3+, and two equivalent Mn+3.38+ atoms. In the eleventh O2- site, O2- is bonded in a 5-coordinate geometry to two Sr2+, one La3+, and two Mn+3.38+ atoms. In the twelfth O2- site, O2- is bonded in a 2-coordinate geometry to one Sr2+, three La3+, and two Mn+3.38+ atoms. In the thirteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Sr2+, two equivalent La3+, and two equivalent Mn+3.38+ atoms. In the fourteenth O2- site, O2- is bonded in a 2-coordinate geometry to one Sr2+, three La3+, and two equivalent Mn+3.38+ atoms.