Materials Data on Cs3MnH5 by Materials Project
Cs3MnH5 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are two inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a linear geometry to two equivalent H1- atoms. Both Cs–H bond lengths are 3.16 Å. In the second Cs1+ site, Cs1+ is bonded in a 8-coordinate geometry to eight H1- atoms. There are a spread of Cs–H bond distances ranging from 3.09–3.35 Å. Mn2+ is bonded in a tetrahedral geometry to four equivalent H1- atoms. All Mn–H bond lengths are 1.78 Å. There are two inequivalent H1- sites. In the first H1- site, H1- is bonded in a distorted single-bond geometry to three equivalent Cs1+ and one Mn2+ atom. In the second H1- site, H1- is bonded to six Cs1+ atoms to form corner-sharing HCs6 octahedra. The corner-sharing octahedra tilt angles range from 0–30°.