Materials Data on SmSbO4 by Materials Project

SmSbO4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Sm3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sm–O bond distances ranging from 2.30–2.90 Å. Sb5+ is bonded to six O2- atoms to form corner-sharing SbO6 octahedra. The corner-sharing octahedra tilt angles range from 38–46°. There are a spread of Sb–O bond distances ranging from 1.97–2.05 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to three equivalent Sm3+ and one Sb5+ atom to form a mixture of distorted edge and corner-sharing OSm3Sb tetrahedra. In the second O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Sm3+ and two equivalent Sb5+ atoms. In the third O2- site, O2- is bonded in a 3-coordinate geometry to three equivalent Sm3+ and one Sb5+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Sm3+ and two equivalent Sb5+ atoms.