Li4Ga3Si3O12Br crystallizes in the cubic P-43n space group. Li(1) is bonded to three equivalent O(1) and one Br(1) atom to form LiBrO3 tetrahedra that share corners with three equivalent Li(1)BrO3 tetrahedra, corners with three equivalent Ga(1)O4 tetrahedra, and corners with three equivalent Si(1)O4 tetrahedra. Ga(1) is bonded to four equivalent O(1) atoms to form GaO4 tetrahedra that share corners with four equivalent Li(1)BrO3 tetrahedra and corners with four equivalent Si(1)O4 tetrahedra. Si(1) is bonded to four equivalent O(1) atoms to form SiO4 tetrahedra that share corners with four equivalent Li(1)BrO3 tetrahedra and corners with four equivalent Ga(1)O4 tetrahedra. O(1) is bonded in a trigonal planar geometry to one Li(1), one Ga(1), and one Si(1) atom. Br(1) is bonded in a tetrahedral geometry to four equivalent Li(1) atoms.
Li4Ga3Si3O12Br crystallizes in the cubic P-43n space group. Li(1) is bonded to three equivalent O(1) and one Br(1) atom to form LiBrO3 tetrahedra that share corners with three equivalent Li(1)BrO3 tetrahedra, corners with three equivalent Ga(1)O4 tetrahedra, and corners with three equivalent Si(1)O4 tetrahedra. All Li(1)-O(1) bond lengths are 1.98 Å. The Li(1)-Br(1) bond length is 2.65 Å. Ga(1) is bonded to four equivalent O(1) atoms to form GaO4 tetrahedra that share corners with four equivalent Li(1)BrO3 tetrahedra and corners with four equivalent Si(1)O4 tetrahedra. All Ga(1)-O(1) bond lengths are 1.84 Å. Si(1) is bonded to four equivalent O(1) atoms to form SiO4 tetrahedra that share corners with four equivalent Li(1)BrO3 tetrahedra and corners with four equivalent Ga(1)O4 tetrahedra. All Si(1)-O(1) bond lengths are 1.63 Å. O(1) is bonded in a trigonal planar geometry to one Li(1), one Ga(1), and one Si(1) atom. Br(1) is bonded in a tetrahedral geometry to four equivalent Li(1) atoms.