Materials Data on Sr3MgPtO6 by Materials Project
Sr3MgPtO6 crystallizes in the trigonal R-3c space group. The structure is three-dimensional. Sr2+ is bonded in a 8-coordinate geometry to eight equivalent O2- atoms. There are a spread of Sr–O bond distances ranging from 2.49–2.76 Å. Mg2+ is bonded to six equivalent O2- atoms to form distorted MgO6 pentagonal pyramids that share faces with two equivalent PtO6 octahedra. All Mg–O bond lengths are 2.19 Å. Pt4+ is bonded to six equivalent O2- atoms to form PtO6 octahedra that share faces with two equivalent MgO6 pentagonal pyramids. All Pt–O bond lengths are 2.06 Å. O2- is bonded to four equivalent Sr2+, one Mg2+, and one Pt4+ atom to form a mixture of distorted edge, face, and corner-sharing OSr4MgPt octahedra. The corner-sharing octahedra tilt angles range from 0–66°.