Materials Data on Cs2Mg(SeO7)2 by Materials Project
Cs2Mg(SeO7)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Cs is bonded in a 10-coordinate geometry to ten O atoms. There are a spread of Cs–O bond distances ranging from 3.09–3.70 Å. Mg is bonded in a distorted octahedral geometry to six O atoms. There are a spread of Mg–O bond distances ranging from 2.02–2.18 Å. Se is bonded in a tetrahedral geometry to four O atoms. There are a spread of Se–O bond distances ranging from 1.66–1.72 Å. There are seven inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one Mg atom. In the second O site, O is bonded in a distorted single-bond geometry to two equivalent Cs and one Se atom. In the third O site, O is bonded in a distorted single-bond geometry to one Cs and one Se atom. In the fourth O site, O is bonded in a distorted single-bond geometry to two equivalent Cs and one Se atom. In the fifth O site, O is bonded in a single-bond geometry to three equivalent Cs and one Se atom. In the sixth O site, O is bonded in a distorted bent 150 degrees geometry to one Cs and one Mg atom. In the seventh O site, O is bonded in a distorted single-bond geometry to one Cs and one Mg atom.