Gd2CoC18H4O19(CH)4C2O crystallizes in the monoclinic C2/c space group. The structure consists of sixteen 02329_fluka molecules and four dimethyl ether molecules inside a Gd2CoC18H4O19 framework. In the Gd2CoC18H4O19 framework, Gd(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(6), one O(7), and one O(8) atom. The Gd(1)-O(1) bond length is 2.54 Å. The Gd(1)-O(2) bond length is 2.47 Å. The Gd(1)-O(3) bond length is 2.29 Å. The Gd(1)-O(4) bond length is 2.30 Å. The Gd(1)-O(6) bond length is 2.61 Å. The Gd(1)-O(7) bond length is 2.48 Å. The Gd(1)-O(8) bond length is 2.35 Å. Co(1) is bonded in an octahedral geometry to two equivalent O(2), two equivalent O(6), and two equivalent O(9) atoms. Both Co(1)-O(2) bond lengths are 2.11 Å. Both Co(1)-O(6) bond lengths are 2.09 Å. Both Co(1)-O(9) bond lengths are 2.03 Å. There are nine inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(2), one C(3), and one O(10) atom. The C(1)-C(2) bond length is 1.35 Å. The C(1)-C(3) bond length is 1.46 Å. The C(1)-O(10) bond length is 1.38 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(1) and one H(1) atom. The C(2)-H(1) bond length is 0.93 Å. In the third C site, C(3) is bonded in a bent 120 degrees geometry to one C(1), one O(1), and one O(2) atom. The C(3)-O(1) bond length is 1.24 Å. The C(3)-O(2) bond length is 1.28 Å. In the fourth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one O(8) and one O(9) atom. The C(6)-O(8) bond length is 1.25 Å. The C(6)-O(9) bond length is 1.26 Å. In the fifth C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(12), one O(6), and one O(7) atom. The C(7)-C(12) bond length is 1.46 Å. The C(7)-O(6) bond length is 1.29 Å. The C(7)-O(7) bond length is 1.24 Å. In the sixth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. The C(8)-O(3) bond length is 1.22 Å. The C(8)-O(4) bond length is 1.25 Å. In the seventh C site, C(9) is bonded in a distorted single-bond geometry to one O(5) atom. The C(9)-O(5) bond length is 1.36 Å. In the eighth C site, C(11) is bonded in a distorted single-bond geometry to one C(12) and one H(4) atom. The C(11)-C(12) bond length is 1.34 Å. The C(11)-H(4) bond length is 0.93 Å. In the ninth C site, C(12) is bonded in a distorted single-bond geometry to one C(11), one C(7), and one O(5) atom. The C(12)-O(5) bond length is 1.37 Å. There are two 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(4) is bonded in a single-bond geometry to one C(11) atom. There are ten inequivalent O sites. In the first O site, O(2) is bonded in a 3-coordinate geometry to one Gd(1), one Co(1), and one C(3) atom. In the second O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Gd(1) and one C(8) atom. In the third O site, O(1) is bonded in a distorted single-bond geometry to one Gd(1) and one C(3) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Gd(1) and one C(8) atom. In the fifth O site, O(5) is bonded in a water-like geometry to one C(12) and one C(9) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Gd(1), one Co(1), and one C(7) atom. In the seventh O site, O(7) is bonded in a distorted water-like geometry to one Gd(1) and one C(7) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one Gd(1) and one C(6) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one C(6) atom. In the tenth O site, O(10) is bonded in a water-like geometry to two equivalent C(1) atoms. Linkers: 8 [O]C(=O)c1ccc(C([O])=O)o1. Metal clusters: 4 [Gd] ,2 [Co]. The MOF has largest included sphere 5.19 A, density 1.79 g/cm3, surface area 2849.79 m2/g, accessible volume 0.25 cm3/g