Materials Data on LaHSe3O10 by Materials Project

Abstract

LaHSe3O8O2 crystallizes in the orthorhombic Pbca space group. The structure is two-dimensional and consists of eight hydrogen peroxide molecules and two LaHSe3O8 sheets oriented in the (0, 0, 1) direction. In each LaHSe3O8 sheet, La3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.42–2.83 Å. H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. There are three inequivalent Se+5.33+ sites. In the first 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 1.69–1.83 Å. In the second 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 1.68–1.88 Å. In the third Se+5.33+ site, Se+5.33+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There are a spread of Se–O bond distances ranging from 1.68–1.90 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one La3+ and one Se+5.33+ atom. In the second O2- site, O2- is bonded in a distorted water-like geometry to one H1+ and one Se+5.33+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent La3+ and one Se+5.33+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one La3+ and two Se+5.33+ atoms. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one La3+ and one Se+5.33+ atom. In the sixth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one La3+ and one Se+5.33+ atom. In the seventh O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one La3+ and one Se+5.33+ atom. In the eighth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one La3+ and one Se+5.33+ atom.