Materials Data on BaLa2PtO5 by Materials Project

Abstract

BaLa2PtO5 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. Ba2+ is bonded in a distorted q6 geometry to ten O2- atoms. There are two shorter (3.00 Å) and eight longer (3.07 Å) Ba–O bond lengths. La3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.34–2.69 Å. Pt2+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Pt–O bond lengths are 2.04 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Ba2+ and four equivalent La3+ atoms to form corner-sharing OBa2La4 octahedra. The corner-sharing octahedra tilt angles range from 0–33°. In the second O2- site, O2- is bonded in a 6-coordinate geometry to two equivalent Ba2+, three equivalent La3+, and one Pt2+ atom.