Materials Data on Si3Os2 by Materials Project
Os2Si3 crystallizes in the orthorhombic Pbcn space group. The structure is three-dimensional. there are three inequivalent Os2- sites. In the first Os2- site, Os2- is bonded in a 7-coordinate geometry to seven Si+1.33+ atoms. There are a spread of Os–Si bond distances ranging from 2.39–2.54 Å. In the second Os2- site, Os2- is bonded to six Si+1.33+ atoms to form distorted edge-sharing OsSi6 octahedra. There are a spread of Os–Si bond distances ranging from 2.36–2.49 Å. In the third Os2- site, Os2- is bonded in a 8-coordinate geometry to eight Si+1.33+ atoms. There are a spread of Os–Si bond distances ranging from 2.41–2.81 Å. There are three inequivalent Si+1.33+ sites. In the first Si+1.33+ site, Si+1.33+ is bonded in a 4-coordinate geometry to four Os2- atoms. In the second Si+1.33+ site, Si+1.33+ is bonded in a 5-coordinate geometry to five Os2- atoms. In the third Si+1.33+ site, Si+1.33+ is bonded in a distorted pentagonal planar geometry to five Os2- atoms.