Materials Data on Se2O5 by Materials Project

Abstract

Se2O5 crystallizes in the monoclinic P2_1/c space group. The structure is one-dimensional and consists of two Se2O5 ribbons oriented in the (0, 1, 0) direction. there are two inequivalent Se5+ sites. In the first Se5+ site, Se5+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There are a spread of Se–O bond distances ranging from 1.62–1.94 Å. In the second Se5+ site, Se5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of Se–O bond distances ranging from 1.63–1.76 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Se5+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to two Se5+ atoms. In the third O2- site, O2- is bonded in a single-bond geometry to one Se5+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one Se5+ atom. In the fifth O2- site, O2- is bonded in a bent 120 degrees geometry to two Se5+ atoms.