Materials Data on Li4Al3Ge3IO12 by Materials Project

Abstract

Li4Al3Ge3O12I crystallizes in the cubic P-43n space group. The structure is three-dimensional. Li1+ is bonded to three equivalent O2- and one I1- atom to form distorted LiIO3 tetrahedra that share corners with three equivalent LiIO3 tetrahedra, corners with three equivalent AlO4 tetrahedra, and corners with three equivalent GeO4 tetrahedra. All Li–O bond lengths are 2.03 Å. The Li–I bond length is 2.93 Å. Al3+ is bonded to four equivalent O2- atoms to form AlO4 tetrahedra that share corners with four equivalent LiIO3 tetrahedra and corners with four equivalent GeO4 tetrahedra. All Al–O bond lengths are 1.77 Å. Ge4+ is bonded to four equivalent O2- atoms to form GeO4 tetrahedra that share corners with four equivalent LiIO3 tetrahedra and corners with four equivalent AlO4 tetrahedra. All Ge–O bond lengths are 1.77 Å. O2- is bonded in a trigonal planar geometry to one Li1+, one Al3+, and one Ge4+ atom. I1- is bonded in a tetrahedral geometry to four equivalent Li1+ atoms.