Materials Data on Sb2O5 by Materials Project

Abstract

Sb2O5 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. there are two inequivalent Sb5+ sites. In the first Sb5+ site, Sb5+ is bonded in a 3-coordinate geometry to six O2- atoms. There are three shorter (2.13 Å) and three longer (2.72 Å) Sb–O bond lengths. In the second Sb5+ site, Sb5+ is bonded in a 3-coordinate geometry to six O2- atoms. There are three shorter (2.13 Å) and three longer (2.72 Å) Sb–O bond lengths. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded to six O2- atoms to form corner-sharing OO6 octahedra. The corner-sharing octahedral tilt angles are 38°. All O–O bond lengths are 2.07 Å. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Sb5+ and two equivalent O2- atoms. In the third O2- site, O2- is bonded to six equivalent Sb5+ atoms to form distorted edge-sharing OSb6 octahedra. In the fourth O2- site, O2- is bonded to six equivalent O2- atoms to form corner-sharing OO6 octahedra. The corner-sharing octahedral tilt angles are 38°. All O–O bond lengths are 2.08 Å. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two equivalent Sb5+ and two O2- atoms. In the sixth O2- site, O2- is bonded to six Sb5+ atoms to form distorted edge-sharing OSb6 octahedra.