Mg2Cd3H24(C2O)24 is Indium-like structured and crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of four Mg2Cd3H24(C2O)24 clusters. Mg(1) is bonded to one O(11), one O(3), one O(4), one O(7), and one O(8) atom to form MgO5 trigonal bipyramids that share  an edgeedge with one Cd(1)O8 hexagonal bipyramid. The Mg(1)-O(11) bond length is 2.37 Å. The Mg(1)-O(3) bond length is 2.35 Å. The Mg(1)-O(4) bond length is 2.26 Å. The Mg(1)-O(7) bond length is 2.39 Å. The Mg(1)-O(8) bond length is 2.46 Å. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form distorted CdO8 hexagonal bipyramids that share edges with two equivalent Mg(1)O5 trigonal bipyramids. Both Cd(1)-O(1) bond lengths are 2.31 Å. Both Cd(1)-O(2) bond lengths are 2.45 Å. Both Cd(1)-O(3) bond lengths are 2.34 Å. Both Cd(1)-O(4) bond lengths are 2.55 Å. In the second Cd site, Cd(2) is bonded in a 6-coordinate geometry to one O(10), one O(11), one O(12), one O(5), one O(6), and one O(7) atom. The Cd(2)-O(10) bond length is 2.23 Å. The Cd(2)-O(11) bond length is 2.53 Å. The Cd(2)-O(12) bond length is 2.32 Å. The Cd(2)-O(5) bond length is 2.28 Å. The Cd(2)-O(6) bond length is 2.42 Å. The Cd(2)-O(7) bond length is 2.22 Å. There are twenty-four inequivalent C sites. In the first C site, C(9) is bonded in a distorted single-bond geometry to one C(11) and one H(5) atom. The C(9)-C(11) bond length is 1.39 Å. The C(9)-H(5) bond length is 0.95 Å. In the second C site, C(14) is bonded in a distorted single-bond geometry to one C(15) and one H(8) atom. The C(14)-C(15) bond length is 1.39 Å. The C(14)-H(8) bond length is 0.95 Å. In the third C site, C(15) is bonded in a trigonal planar geometry to one C(14), one C(18), and one C(19) atom. The C(15)-C(18) bond length is 1.36 Å. The C(15)-C(19) bond length is 1.51 Å. In the fourth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one C(24), one O(10), and one O(8) atom. The C(16)-C(24) bond length is 1.51 Å. The C(16)-O(10) bond length is 1.27 Å. The C(16)-O(8) bond length is 1.23 Å. In the fifth C site, C(17) is bonded in a trigonal planar geometry to one C(10), one C(13), and one C(22) atom. The C(17)-C(10) bond length is 1.38 Å. The C(17)-C(13) bond length is 1.53 Å. The C(17)-C(22) bond length is 1.38 Å. In the sixth C site, C(18) is bonded in a distorted single-bond geometry to one C(15) and one H(9) atom. The C(18)-H(9) bond length is 0.95 Å. In the seventh C site, C(19) is bonded in a bent 120 degrees geometry to one C(15), one O(11), and one O(5) atom. The C(19)-O(11) bond length is 1.26 Å. The C(19)-O(5) bond length is 1.26 Å. In the eighth C site, C(11) is bonded in a trigonal planar geometry to one C(12), one C(20), and one C(9) atom. The C(11)-C(12) bond length is 1.37 Å. The C(11)-C(20) bond length is 1.50 Å. In the ninth C site, C(21) is bonded in a single-bond geometry to one C(24) and one H(10) atom. The C(21)-C(24) bond length is 1.38 Å. The C(21)-H(10) bond length is 0.95 Å. In the tenth C site, C(22) is bonded in a distorted single-bond geometry to one C(17) and one H(11) atom. The C(22)-H(11) bond length is 0.95 Å. In the eleventh C site, C(23) is bonded in a distorted single-bond geometry to one C(24) and one H(12) atom. The C(23)-C(24) bond length is 1.38 Å. The C(23)-H(12) bond length is 0.95 Å. In the twelfth C site, C(24) is bonded in a trigonal planar geometry to one C(16), one C(21), and one C(23) atom. In the thirteenth C site, C(20) is bonded in a bent 120 degrees geometry to one C(11), one O(12), and one O(6) atom. The C(20)-O(12) bond length is 1.26 Å. The C(20)-O(6) bond length is 1.24 Å. In the fourteenth C site, C(12) is bonded in a distorted single-bond geometry to one C(11) and one H(7) atom. The C(12)-H(7) bond length is 0.95 Å. In the fifteenth C site, C(10) is bonded in a distorted single-bond geometry to one C(17) and one H(6) atom. The C(10)-H(6) bond length is 0.95 Å. In the sixteenth C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(7) atom. The C(1)-C(2) bond length is 1.39 Å. The C(1)-C(4) bond length is 1.38 Å. The C(1)-C(7) bond length is 1.48 Å. In the seventeenth C site, C(2) is bonded in a single-bond geometry to one C(1) and one H(1) atom. The C(2)-H(1) bond length is 0.95 Å. In the eighteenth C site, C(3) is bonded in a distorted single-bond geometry to one C(6) and one H(2) atom. The C(3)-C(6) bond length is 1.40 Å. The C(3)-H(2) bond length is 0.95 Å. In the nineteenth C site, C(4) is bonded in a single-bond geometry to one C(1) and one H(3) atom. The C(4)-H(3) bond length is 0.95 Å. In the twentieth C site, C(5) is bonded in a distorted single-bond geometry to one C(6) and one H(4) atom. The C(5)-C(6) bond length is 1.38 Å. The C(5)-H(4) bond length is 0.95 Å. In the twenty-first C site, C(6) is bonded in a trigonal planar geometry to one C(3), one C(5), and one C(8) atom. The C(6)-C(8) bond length is 1.48 Å. In the twenty-second C site, C(7) is bonded in a bent 120 degrees geometry to one C(1), one O(1), and one O(4) atom. The C(7)-O(1) bond length is 1.27 Å. The C(7)-O(4) bond length is 1.25 Å. In the twenty-third C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(6), one O(2), and one O(3) atom. The C(8)-O(2) bond length is 1.24 Å. The C(8)-O(3) bond length is 1.27 Å. In the twenty-fourth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(17), one O(7), and one O(9) atom. The C(13)-O(7) bond length is 1.25 Å. The C(13)-O(9) bond length is 1.25 Å. There are twelve inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(5) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(9) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(10) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(12) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(14) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(18) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(21) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(22) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(23) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one Cd(1) and one C(7) atom. In the second O site, O(2) is bonded in a distorted L-shaped geometry to one Cd(1) and one C(8) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Mg(1), one Cd(1), and one C(8) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one Mg(1), one Cd(1), and one C(7) atom. In the fifth O site, O(5) is bonded in a water-like geometry to one Cd(2) and one C(19) atom. In the sixth O site, O(6) is bonded in an L-shaped geometry to one Cd(2) and one C(20) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Mg(1), one Cd(2), and one C(13) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one Mg(1) and one C(16) atom. In the ninth O site, O(9) is bonded in a single-bond geometry to one C(13) atom. In the tenth O site, O(10) is bonded in a water-like geometry to one Cd(2) and one C(16) atom. In the eleventh O site, O(11) is bonded in a distorted T-shaped geometry to one Mg(1), one Cd(2), and one C(19) atom. In the twelfth O site, O(12) is bonded in an L-shaped geometry to one Cd(2) and one C(20) atom. Linkers: 24 [O]C(=O)c1ccc(C([O])=O)cc1. Metal clusters: 3 O=[C]O[Cd]12(O[C]=O)(O[C]O1)O[C]O2.O=[C]O[Cd]12(O[C]=O)(O[C]O1)O[C]O2.[Mg]O[C]O[Cd]12(O[C]O[Mg])(O[C]O1)O[C]O2 ,1 O=[C]O[Cd]1(O[C]=O)(O[C]=O)O[C]O1.O=[C]O[Cd]12(O[C]=O)(O[C]O1)O[C]O2.[Mg]O[C]O[Cd]12(O[C]O[Mg])(O[C]O1)O[C]O2. RCSR code: dia. The MOF has largest included sphere 7.04 A, density 1.17 g/cm3, surface area 3915.19 m2/g, accessible volume 0.50 cm3/g