Materials Data on Eu2MgIrO6 by Materials Project
Eu2MgIrO6 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with six equivalent IrO6 octahedra. The corner-sharing octahedra tilt angles range from 30–31°. There are a spread of Mg–O bond distances ranging from 2.05–2.10 Å. Eu3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Eu–O bond distances ranging from 2.37–2.76 Å. Ir4+ is bonded to six O2- atoms to form IrO6 octahedra that share corners with six equivalent MgO6 octahedra. The corner-sharing octahedra tilt angles range from 30–31°. There is two shorter (1.99 Å) and four longer (2.00 Å) Ir–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to one Mg2+, three equivalent Eu3+, and one Ir4+ atom. In the second O2- site, O2- is bonded to one Mg2+, two equivalent Eu3+, and one Ir4+ atom to form distorted corner-sharing OEu2MgIr tetrahedra. In the third O2- site, O2- is bonded in a 5-coordinate geometry to one Mg2+, three equivalent Eu3+, and one Ir4+ atom.