Materials Data on Hg2SeO5 by Materials Project

Abstract

Hg2SeO5 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are four inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a 2-coordinate geometry to six O2- atoms. There are a spread of Hg–O bond distances ranging from 2.09–3.00 Å. In the second Hg2+ site, Hg2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Hg–O bond distances ranging from 2.13–2.72 Å. In the third Hg2+ site, Hg2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Hg–O bond distances ranging from 2.10–2.80 Å. In the fourth Hg2+ site, Hg2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Hg–O bond distances ranging from 2.19–2.81 Å. There are two inequivalent Se6+ sites. In the first Se6+ site, Se6+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of Se–O bond distances ranging from 1.67–1.72 Å. In the second Se6+ site, Se6+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of Se–O bond distances ranging from 1.66–1.73 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two Hg2+ and one Se6+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to three Hg2+ and one Se6+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to two Hg2+ and one Se6+ atom. In the fourth O2- site, O2- is bonded in a trigonal planar geometry to three Hg2+ atoms. In the fifth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Hg2+ and one Se6+ atom. In the sixth O2- site, O2- is bonded in a 1-coordinate geometry to three Hg2+ and one Se6+ atom. In the seventh O2- site, O2- is bonded in a 1-coordinate geometry to one Hg2+ and one Se6+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to two Hg2+ and one Se6+ atom. In the ninth O2- site, O2- is bonded in a 1-coordinate geometry to two Hg2+ and one Se6+ atom. In the tenth O2- site, O2- is bonded in a trigonal planar geometry to three Hg2+ atoms.