Materials Data on SrLa3Cr4O12 by Materials Project
SrLa3Cr4O12 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic P2 space group. The structure is three-dimensional. Sr2+ is bonded in a 12-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.51–2.84 Å. There are three inequivalent La3+ sites. In the first La3+ site, La3+ is bonded in a 3-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.44–2.79 Å. In the second La3+ site, La3+ is bonded in a 3-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.41–2.79 Å. In the third La3+ site, La3+ is bonded in a 3-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.43–2.79 Å. There are two inequivalent Cr+3.25+ sites. In the first Cr+3.25+ site, Cr+3.25+ is bonded to six O2- atoms to form corner-sharing CrO6 octahedra. The corner-sharing octahedra tilt angles range from 15–22°. There are a spread of Cr–O bond distances ranging from 1.98–2.01 Å. In the second Cr+3.25+ site, Cr+3.25+ is bonded to six O2- atoms to form corner-sharing CrO6 octahedra. The corner-sharing octahedra tilt angles range from 15–22°. There are a spread of Cr–O bond distances ranging from 1.96–2.00 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to three La3+ and two Cr+3.25+ atoms. In the second O2- site, O2- is bonded in a 5-coordinate geometry to one Sr2+, two La3+, and two Cr+3.25+ atoms. In the third O2- site, O2- is bonded in a 5-coordinate geometry to three La3+ and two equivalent Cr+3.25+ atoms. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Sr2+, two equivalent La3+, and two equivalent Cr+3.25+ atoms. In the fifth O2- site, O2- is bonded in a 5-coordinate geometry to one Sr2+, two La3+, and two Cr+3.25+ atoms. In the sixth O2- site, O2- is bonded in a 5-coordinate geometry to one Sr2+, two La3+, and two Cr+3.25+ atoms. In the seventh O2- site, O2- is bonded in a 5-coordinate geometry to two equivalent Sr2+, one La3+, and two equivalent Cr+3.25+ atoms. In the eighth O2- site, O2- is bonded in a 5-coordinate geometry to three La3+ and two equivalent Cr+3.25+ atoms.