Materials Data on Ru4Pb4O13 by Materials Project

Abstract

Ru4Pb4O13 crystallizes in the cubic F-43m space group. The structure is three-dimensional. Ru+4.50+ is bonded to six O2- atoms to form RuO6 octahedra that share corners with six equivalent RuO6 octahedra and edges with six equivalent PbO7 hexagonal pyramids. The corner-sharing octahedra tilt angles range from 43–45°. All Ru–O bond lengths are 1.98 Å. Pb2+ is bonded to seven O2- atoms to form distorted PbO7 hexagonal pyramids that share corners with three equivalent PbO7 hexagonal pyramids, edges with three equivalent PbO7 hexagonal pyramids, and edges with six equivalent RuO6 octahedra. There are a spread of Pb–O bond distances ranging from 2.28–2.61 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ru+4.50+ and two equivalent Pb2+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Ru+4.50+ and two equivalent Pb2+ atoms. In the third O2- site, O2- is bonded in a tetrahedral geometry to four equivalent Pb2+ atoms.