Materials Data on Co(SeO4)2 by Materials Project

Abstract

Co(SeO4)2 crystallizes in the monoclinic P2_1/c space group. The structure is two-dimensional and consists of one Co(SeO4)2 sheet oriented in the (1, 0, 0) direction. Co4+ is bonded in an octahedral geometry to six O2- atoms. There are a spread of Co–O bond distances ranging from 1.96–2.19 Å. Se6+ is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of Se–O bond distances ranging from 1.65–2.27 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to one Co4+, one Se6+, and one O2- atom. The O–O bond length is 1.32 Å. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one Co4+ and one Se6+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one Se6+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Co4+ and one O2- atom.