Materials Data on Cs2MgCl4 by Materials Project
Cs2MgCl4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 8-coordinate geometry to eight Cl1- atoms. There are a spread of Cs–Cl bond distances ranging from 3.55–4.03 Å. In the second Cs1+ site, Cs1+ is bonded in a 9-coordinate geometry to nine Cl1- atoms. There are a spread of Cs–Cl bond distances ranging from 3.54–4.04 Å. Mg2+ is bonded in a tetrahedral geometry to four Cl1- atoms. There are three shorter (2.34 Å) and one longer (2.35 Å) Mg–Cl bond lengths. There are three inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a distorted single-bond geometry to four Cs1+ and one Mg2+ atom. In the second Cl1- site, Cl1- is bonded in a distorted single-bond geometry to four Cs1+ and one Mg2+ atom. In the third Cl1- site, Cl1- is bonded in a distorted single-bond geometry to five Cs1+ and one Mg2+ atom.