Materials Data on CsSeO4 by Materials Project
CsSeO4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Cs is bonded in a 9-coordinate geometry to nine O atoms. There are a spread of Cs–O bond distances ranging from 3.07–3.53 Å. Se is bonded in a tetrahedral geometry to four O atoms. There are a spread of Se–O bond distances ranging from 1.65–1.72 Å. There are four inequivalent O sites. In the first O site, O is bonded in a distorted single-bond geometry to one Cs and one Se atom. In the second O site, O is bonded in a distorted single-bond geometry to three equivalent Cs and one Se atom. In the third O site, O is bonded in a distorted single-bond geometry to two equivalent Cs and one Se atom. In the fourth O site, O is bonded in a distorted single-bond geometry to three equivalent Cs and one Se atom.