Na4Al3Ge3O12Cl crystallizes in the cubic P-43n space group. Na(1) is bonded to three equivalent O(1) and one Cl(1) atom to form NaClO3 tetrahedra that share corners with three equivalent Na(1)ClO3 tetrahedra, corners with three equivalent Al(1)O4 tetrahedra, and corners with three equivalent Ge(1)O4 tetrahedra. Al(1) is bonded to four equivalent O(1) atoms to form AlO4 tetrahedra that share corners with four equivalent Na(1)ClO3 tetrahedra and corners with four equivalent Ge(1)O4 tetrahedra. Ge(1) is bonded to four equivalent O(1) atoms to form GeO4 tetrahedra that share corners with four equivalent Na(1)ClO3 tetrahedra and corners with four equivalent Al(1)O4 tetrahedra. O(1) is bonded in a trigonal planar geometry to one Na(1), one Al(1), and one Ge(1) atom. Cl(1) is bonded in a tetrahedral geometry to four equivalent Na(1) atoms.
Na4Al3Ge3O12Cl crystallizes in the cubic P-43n space group. Na(1) is bonded to three equivalent O(1) and one Cl(1) atom to form NaClO3 tetrahedra that share corners with three equivalent Na(1)ClO3 tetrahedra, corners with three equivalent Al(1)O4 tetrahedra, and corners with three equivalent Ge(1)O4 tetrahedra. All Na(1)-O(1) bond lengths are 2.35 Å. The Na(1)-Cl(1) bond length is 2.74 Å. Al(1) is bonded to four equivalent O(1) atoms to form AlO4 tetrahedra that share corners with four equivalent Na(1)ClO3 tetrahedra and corners with four equivalent Ge(1)O4 tetrahedra. All Al(1)-O(1) bond lengths are 1.77 Å. Ge(1) is bonded to four equivalent O(1) atoms to form GeO4 tetrahedra that share corners with four equivalent Na(1)ClO3 tetrahedra and corners with four equivalent Al(1)O4 tetrahedra. All Ge(1)-O(1) bond lengths are 1.77 Å. O(1) is bonded in a trigonal planar geometry to one Na(1), one Al(1), and one Ge(1) atom. Cl(1) is bonded in a tetrahedral geometry to four equivalent Na(1) atoms.