Na3MgC2O6Br crystallizes in the cubic Fd-3m space group. Na(1) is bonded in a 8-coordinate geometry to six equivalent O(1) and two equivalent Br(1) atoms. Mg(1) is bonded in an octahedral geometry to six equivalent O(1) atoms. C(1) is bonded in a trigonal planar geometry to three equivalent O(1) atoms. O(1) is bonded in a 5-coordinate geometry to three equivalent Na(1), one Mg(1), and one C(1) atom. Br(1) is bonded in a 6-coordinate geometry to six equivalent Na(1) atoms.
Na3MgC2O6Br crystallizes in the cubic Fd-3m space group. Na(1) is bonded in a 8-coordinate geometry to six equivalent O(1) and two equivalent Br(1) atoms. There are two shorter (2.48 Å) and four longer (2.66 Å) Na(1)-O(1) bond lengths. Both Na(1)-Br(1) bond lengths are 3.04 Å. Mg(1) is bonded in an octahedral geometry to six equivalent O(1) atoms. All Mg(1)-O(1) bond lengths are 2.07 Å. C(1) is bonded in a trigonal planar geometry to three equivalent O(1) atoms. All C(1)-O(1) bond lengths are 1.30 Å. O(1) is bonded in a 5-coordinate geometry to three equivalent Na(1), one Mg(1), and one C(1) atom. Br(1) is bonded in a 6-coordinate geometry to six equivalent Na(1) atoms.