Materials Data on ZrSiOs by Materials Project

Abstract

ZrOsSi crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Zr3+ is bonded to five equivalent Si4- atoms to form distorted ZrSi5 trigonal bipyramids that share corners with eight equivalent OsSi4 tetrahedra, corners with eight equivalent ZrSi5 trigonal bipyramids, edges with six equivalent OsSi4 tetrahedra, and edges with six equivalent ZrSi5 trigonal bipyramids. There are a spread of Zr–Si bond distances ranging from 2.81–2.89 Å. Os1+ is bonded to four equivalent Si4- atoms to form OsSi4 tetrahedra that share corners with eight equivalent OsSi4 tetrahedra, corners with eight equivalent ZrSi5 trigonal bipyramids, edges with two equivalent OsSi4 tetrahedra, and edges with six equivalent ZrSi5 trigonal bipyramids. There are a spread of Os–Si bond distances ranging from 2.46–2.53 Å. Si4- is bonded in a 9-coordinate geometry to five equivalent Zr3+ and four equivalent Os1+ atoms.