NaCo2C36H6(NO6)2(CH6)2 crystallizes in the tetragonal P4_2/m space group. The structure consists of four methane;molecular hydrogen molecules inside a NaCo2C36H6(NO6)2 framework. In the NaCo2C36H6(NO6)2 framework, Na(1) is bonded in a distorted octahedral geometry to two equivalent O(3) and four equivalent O(1) atoms. Both Na(1)-O(3) bond lengths are 2.48 Å. All Na(1)-O(1) bond lengths are 2.44 Å. Co(1) is bonded in a 7-coordinate geometry to one N(1), one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms. The Co(1)-N(1) bond length is 2.09 Å. The Co(1)-O(3) bond length is 2.38 Å. The Co(1)-O(4) bond length is 2.04 Å. Both Co(1)-O(1) bond lengths are 2.06 Å. Both Co(1)-O(2) bond lengths are 2.57 Å. There are eleven inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(1)-C(2) bond length is 1.48 Å. The C(1)-O(1) bond length is 1.27 Å. The C(1)-O(2) bond length is 1.23 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(10), and one C(3) atom. The C(2)-C(10) bond length is 1.39 Å. The C(2)-C(3) bond length is 1.40 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(11), one C(2), and one H(1) atom. The C(3)-C(11) bond length is 1.39 Å. The C(3)-H(1) bond length is 0.95 Å. In the fourth C site, C(4) is bonded in a 3-coordinate geometry to one C(12), one C(5), and one C(7) atom. The C(4)-C(12) bond length is 1.35 Å. The C(4)-C(5) bond length is 1.36 Å. The C(4)-C(7) bond length is 1.06 Å. In the fifth C site, C(5) is bonded in a 2-coordinate geometry to one C(4), one C(6), and one N(1) atom. The C(5)-C(6) bond length is 1.03 Å. The C(5)-N(1) bond length is 1.33 Å. In the sixth C site, C(6) is bonded in a 3-coordinate geometry to one C(5), one C(7), and one N(1) atom. The C(6)-C(7) bond length is 1.39 Å. The C(6)-N(1) bond length is 1.37 Å. In the seventh C site, C(7) is bonded in a 3-coordinate geometry to one C(12), one C(4), and one C(6) atom. The C(7)-C(12) bond length is 1.41 Å. In the eighth 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 1.23 Å. The C(8)-O(4) bond length is 1.29 Å. In the ninth C site, C(10) is bonded in a single-bond geometry to two equivalent C(2) and one H(5) atom. The C(10)-H(5) bond length is 0.95 Å. In the tenth C site, C(11) is bonded in a trigonal planar geometry to one C(12) and two equivalent C(3) atoms. The C(11)-C(12) bond length is 1.49 Å. In the eleventh C site, C(12) is bonded in a 5-coordinate geometry to one C(11), two equivalent C(4), and two equivalent C(7) atoms. N(1) is bonded in a 5-coordinate geometry to one Co(1), two equivalent C(5), and two equivalent C(6) atoms. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(5) is bonded in a single-bond geometry to one C(10) atom. There are four inequivalent O sites. In the first O site, O(3) is bonded in a distorted single-bond geometry to one Na(1), one Co(1), and one C(8) atom. In the second O site, O(4) is bonded in an L-shaped geometry to one Co(1) and one C(8) atom. In the third O site, O(1) is bonded in a 3-coordinate geometry to one Na(1), one Co(1), and one C(1) atom. In the fourth O site, O(2) is bonded in a single-bond geometry to one Co(1) and one C(1) atom. Linkers: 4 [C]1[C][C]2[N][C]3[C][C][C]3[C][C]12.[O]C(=O)c1c[c]cc(C([O])=O)c1. Metal clusters: 2 C.C.O=[C]O[Co](O[C]=O)O[C]=O.O=[C]O[Co](O[C]=O)O[C]=O.[H].[H].[H].[H].[Na]. The MOF has largest included sphere 6.84 A, density 1.24 g/cm3, surface area 3817.97 m2/g, accessible volume 0.30 cm3/g