Materials Data on BaLaMn2O6 by Materials Project

Abstract

BaLaMn2O6 is (Cubic) Perovskite-derived structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Ba2+ is bonded to twelve O2- atoms to form BaO12 cuboctahedra that share corners with four equivalent BaO12 cuboctahedra, corners with eight equivalent LaO12 cuboctahedra, faces with two equivalent LaO12 cuboctahedra, faces with four equivalent BaO12 cuboctahedra, and faces with eight equivalent MnO6 octahedra. There are four shorter (2.80 Å) and eight longer (2.93 Å) Ba–O bond lengths. La3+ is bonded to twelve O2- atoms to form LaO12 cuboctahedra that share corners with four equivalent LaO12 cuboctahedra, corners with eight equivalent BaO12 cuboctahedra, faces with two equivalent BaO12 cuboctahedra, faces with four equivalent LaO12 cuboctahedra, and faces with eight equivalent MnO6 octahedra. There are eight shorter (2.68 Å) and four longer (2.80 Å) La–O bond lengths. Mn+3.50+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six equivalent MnO6 octahedra, faces with four equivalent BaO12 cuboctahedra, and faces with four equivalent LaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–9°. There are a spread of Mn–O bond distances ranging from 1.97–2.00 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted linear geometry to two equivalent Ba2+, two equivalent La3+, and two equivalent Mn+3.50+ atoms. In the second O2- site, O2- is bonded to four equivalent Ba2+ and two equivalent Mn+3.50+ atoms to form a mixture of distorted corner and edge-sharing OBa4Mn2 octahedra. The corner-sharing octahedral tilt angles are 0°. In the third O2- site, O2- is bonded in a distorted linear geometry to four equivalent La3+ and two equivalent Mn+3.50+ atoms.