Materials Data on Sr3La(NiO4)2 by Materials Project
Sr3La(NiO4)2 is (La,Ba)CuO4-derived structured and crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are three 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 2.48–2.75 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 2.49–2.76 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 2.47–2.76 Å. La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.41–2.75 Å. There are two inequivalent Ni+3.50+ sites. In the first Ni+3.50+ site, Ni+3.50+ is bonded to six O2- atoms to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles are 5°. There are a spread of Ni–O bond distances ranging from 1.94–2.04 Å. In the second Ni+3.50+ site, Ni+3.50+ is bonded to six O2- atoms to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles are 5°. There is five shorter (1.94 Å) and one longer (2.00 Å) Ni–O bond length. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded to three Sr2+, one La3+, and two Ni+3.50+ atoms to form a mixture of distorted edge, corner, and face-sharing OSr3LaNi2 octahedra. The corner-sharing octahedra tilt angles range from 4–56°. In the second O2- site, O2- is bonded to five Sr2+ and one Ni+3.50+ atom to form distorted OSr5Ni octahedra that share corners with seventeen OSr5Ni octahedra, edges with eight OSr4LaNi octahedra, and faces with four equivalent OSr3LaNi2 octahedra. The corner-sharing octahedra tilt angles range from 0–56°. In the third O2- site, O2- is bonded to four Sr2+, one La3+, and one Ni+3.50+ atom to form distorted OSr4LaNi octahedra that share corners with seventeen OSr4LaNi octahedra, edges with eight OSr5Ni octahedra, and faces with four equivalent OSr3LaNi2 octahedra. The corner-sharing octahedra tilt angles range from 0–54°. In the fourth O2- site, O2- is bonded to three Sr2+, two equivalent La3+, and one Ni+3.50+ atom to form distorted OSr3La2Ni octahedra that share corners with seventeen OSr4LaNi octahedra, edges with eight OSr5Ni octahedra, and faces with four equivalent OSr3LaNi2 octahedra. The corner-sharing octahedra tilt angles range from 0–54°. In the fifth O2- site, O2- is bonded to three Sr2+, two equivalent La3+, and one Ni+3.50+ atom to form distorted OSr3La2Ni octahedra that share corners with seventeen OSr5Ni octahedra, edges with eight OSr5Ni octahedra, and faces with four equivalent OSr3LaNi2 octahedra. The corner-sharing octahedra tilt angles range from 0–54°.