Materials Data on Gd2MnNiO6 by Materials Project
Gd2MnNiO6 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Gd3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Gd–O bond distances ranging from 2.29–2.74 Å. Mn2+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six equivalent NiO6 octahedra. The corner-sharing octahedra tilt angles range from 32–35°. There are a spread of Mn–O bond distances ranging from 1.93–1.95 Å. Ni4+ is bonded to six O2- atoms to form NiO6 octahedra that share corners with six equivalent MnO6 octahedra. The corner-sharing octahedra tilt angles range from 32–35°. There are two shorter (2.07 Å) and four longer (2.11 Å) Ni–O bond lengths. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Gd3+, one Mn2+, and one Ni4+ atom to form distorted corner-sharing OGd2MnNi tetrahedra. In the second O2- site, O2- is bonded in a 5-coordinate geometry to three equivalent Gd3+, one Mn2+, and one Ni4+ atom. In the third O2- site, O2- is bonded in a 5-coordinate geometry to three equivalent Gd3+, one Mn2+, and one Ni4+ atom.