Na4Al6O12Cl crystallizes in the cubic I-43m 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 and corners with six equivalent Al(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 Al(1)O4 tetrahedra. O(1) is bonded in a distorted trigonal planar geometry to one Na(1) and two equivalent Al(1) atoms. Cl(1) is bonded in a tetrahedral geometry to four equivalent Na(1) atoms.
Na4Al6O12Cl crystallizes in the cubic I-43m 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 and corners with six equivalent Al(1)O4 tetrahedra. All Na(1)-O(1) bond lengths are 2.43 Å. The Na(1)-Cl(1) bond length is 2.80 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 Al(1)O4 tetrahedra. All Al(1)-O(1) bond lengths are 1.76 Å. O(1) is bonded in a distorted trigonal planar geometry to one Na(1) and two equivalent Al(1) atoms. Cl(1) is bonded in a tetrahedral geometry to four equivalent Na(1) atoms.