NaMgC6NH12O9 crystallizes in the orthorhombic Pbca space group. Na(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(5), one O(6), one O(7), and one O(9) atom. The Na(1)-O(1) bond length is 2.40 Å. The Na(1)-O(3) bond length is 2.39 Å. The Na(1)-O(5) bond length is 2.40 Å. The Na(1)-O(6) bond length is 2.44 Å. The Na(1)-O(7) bond length is 2.42 Å. The Na(1)-O(9) bond length is 2.47 Å. Mg(1) is bonded in a distorted octahedral geometry to one N(1), one O(2), one O(3), one O(5), one O(6), and one O(8) atom. The Mg(1)-N(1) bond length is 2.29 Å. The Mg(1)-O(2) bond length is 2.07 Å. The Mg(1)-O(3) bond length is 2.08 Å. The Mg(1)-O(5) bond length is 2.05 Å. The Mg(1)-O(6) bond length is 2.10 Å. The Mg(1)-O(8) bond length is 2.11 Å. There are six inequivalent C sites. In the first C site, C(3) is bonded in a distorted trigonal non-coplanar geometry to one N(1), one H(10), and one H(9) atom. The C(3)-N(1) bond length is 1.47 Å. The C(3)-H(10) bond length is 1.10 Å. The C(3)-H(9) bond length is 1.10 Å. In the second C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. The C(4)-O(3) bond length is 1.28 Å. The C(4)-O(4) bond length is 1.27 Å. In the third C site, C(5) is bonded in a distorted trigonal non-coplanar geometry to one N(1), one H(11), and one H(12) atom. The C(5)-N(1) bond length is 1.47 Å. The C(5)-H(11) bond length is 1.10 Å. The C(5)-H(12) bond length is 1.10 Å. In the fourth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one O(5) and one O(6) atom. The C(6)-O(5) bond length is 1.27 Å. The C(6)-O(6) bond length is 1.27 Å. In the fifth C site, C(1) is bonded in a distorted trigonal non-coplanar geometry to one N(1), one H(7), and one H(8) atom. The C(1)-N(1) bond length is 1.48 Å. The C(1)-H(7) bond length is 1.10 Å. The C(1)-H(8) bond length is 1.10 Å. In the sixth C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. The C(2)-O(1) bond length is 1.26 Å. The C(2)-O(2) bond length is 1.28 Å. N(1) is bonded in a tetrahedral geometry to one Mg(1), one C(1), one C(3), and one C(5) atom. There are twelve inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one O(4) and one O(7) atom. The H(1)-O(4) bond length is 1.66 Å. The H(1)-O(7) bond length is 1.00 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(7) atom. The H(2)-O(7) bond length is 0.99 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(8) atom. The H(3)-O(8) bond length is 1.01 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(1) and one O(8) atom. The H(4)-O(1) bond length is 1.70 Å. The H(4)-O(8) bond length is 1.01 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(9) atom. The H(5)-O(9) bond length is 0.98 Å. In the sixth H site, H(6) is bonded in a distorted single-bond geometry to one O(4) and one O(9) atom. The H(6)-O(4) bond length is 1.69 Å. The H(6)-O(9) bond length is 1.00 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(1) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(1) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(3) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(3) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(5) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(5) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Na(1), one C(2), and one H(4) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Mg(1) and one C(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Na(1), one Mg(1), and one C(4) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one C(4), one H(1), and one H(6) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Na(1), one Mg(1), and one C(6) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Na(1), one Mg(1), and one C(6) atom. In the seventh O site, O(7) is bonded in a distorted water-like geometry to one Na(1), one H(1), and one H(2) atom. In the eighth O site, O(8) is bonded in a distorted water-like geometry to one Mg(1), one H(3), and one H(4) atom. In the ninth O site, O(9) is bonded in a water-like geometry to one Na(1), one H(5), and one H(6) atom. Linkers: 8 [O]C(=O)CN(CC([O])=O)CC([O])=O. Metal clusters: 8 [Na] ,8 [Mg]. The MOF has largest included sphere 3.04 A, density 1.57 g/cm3, surface area 3391.26 m2/g, accessible volume 0.22 cm3/g