Materials Data on K3(PtO2)2 by Materials Project

Abstract

K3(PtO2)2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent K sites. In the first K site, K is bonded in a 6-coordinate geometry to six equivalent O atoms. There are a spread of K–O bond distances ranging from 2.86–2.91 Å. In the second K site, K is bonded in a 4-coordinate geometry to four equivalent O atoms. All K–O bond lengths are 2.69 Å. There are two inequivalent Pt sites. In the first Pt site, Pt is bonded in a distorted square co-planar geometry to four equivalent O atoms. All Pt–O bond lengths are 2.02 Å. In the second Pt site, Pt is bonded in a distorted square co-planar geometry to four equivalent O atoms. All Pt–O bond lengths are 2.04 Å. O is bonded to four K and two Pt atoms to form a mixture of distorted face, edge, and corner-sharing OK4Pt2 octahedra. The corner-sharing octahedra tilt angles range from 0–70°.