Materials Data on Fe(SeO3)3 by Materials Project

Abstract

Fe(SeO3)3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Fe2+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent SeO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 2.01–2.08 Å. There are three inequivalent Se+5.33+ sites. In the first Se+5.33+ site, Se+5.33+ is bonded to four O2- atoms to form SeO4 tetrahedra that share corners with two equivalent FeO6 octahedra. The corner-sharing octahedra tilt angles range from 51–57°. There are a spread of Se–O bond distances ranging from 1.63–1.79 Å. In the second Se+5.33+ site, Se+5.33+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There is two shorter (1.69 Å) and one longer (1.93 Å) Se–O bond length. In the third Se+5.33+ site, Se+5.33+ is bonded in a trigonal non-coplanar geometry to three O2- atoms. There are a spread of Se–O bond distances ranging from 1.67–1.73 Å. There are nine inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Fe2+ and one Se+5.33+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to two Se+5.33+ atoms. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe2+ and one Se+5.33+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Fe2+ and one Se+5.33+ atom. In the fifth O2- site, O2- is bonded in a bent 120 degrees geometry to one Fe2+ and one Se+5.33+ atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one Se+5.33+ atom. In the seventh O2- site, O2- is bonded in a bent 120 degrees geometry to one Fe2+ and one Se+5.33+ atom. In the eighth O2- site, O2- is bonded in a single-bond geometry to one Se+5.33+ atom. In the ninth O2- site, O2- is bonded in a bent 120 degrees geometry to one Fe2+ and one Se+5.33+ atom.