Materials Data on Sb3O7 by Materials Project
Sb3O7 crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. there are three inequivalent Sb sites. In the first Sb site, Sb is bonded in a 2-coordinate geometry to eight O atoms. There are a spread of Sb–O bond distances ranging from 1.99–2.68 Å. In the second Sb site, Sb is bonded to six O atoms to form corner-sharing SbO6 octahedra. The corner-sharing octahedra tilt angles range from 42–49°. There is two shorter (1.95 Å) and four longer (2.01 Å) Sb–O bond length. In the third Sb site, Sb is bonded to six O atoms to form corner-sharing SbO6 octahedra. The corner-sharing octahedra tilt angles range from 43–49°. There are two shorter (1.96 Å) and four longer (2.06 Å) Sb–O bond lengths. There are four inequivalent O sites. In the first O site, O is bonded in a distorted trigonal non-coplanar geometry to three Sb atoms. In the second O site, O is bonded in a bent 150 degrees geometry to two equivalent Sb atoms. In the third O site, O is bonded in a bent 120 degrees geometry to two equivalent Sb atoms. In the fourth O site, O is bonded in a distorted bent 150 degrees geometry to four Sb atoms.