Cd2C15NH6O8CN crystallizes in the monoclinic P2_1/c space group. The structure consists of two dimethyldiazene molecules inside a Cd2C15NH6O8 framework. In the Cd2C15NH6O8 framework, there are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a distorted T-shaped geometry to one O(5), one O(6), and one O(8) atom. The Cd(1)-O(5) bond length is 2.26 Å. The Cd(1)-O(6) bond length is 2.31 Å. The Cd(1)-O(8) bond length is 2.29 Å. In the second Cd site, Cd(2) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(6), and one O(7) atom. The Cd(2)-O(1) bond length is 2.43 Å. The Cd(2)-O(2) bond length is 2.23 Å. The Cd(2)-O(3) bond length is 2.26 Å. The Cd(2)-O(4) bond length is 2.56 Å. The Cd(2)-O(6) bond length is 2.30 Å. The Cd(2)-O(7) bond length is 2.29 Å. There are fifteen inequivalent C sites. In the first C site, C(1) is bonded in a distorted single-bond geometry to one C(10) and one H(4) atom. The C(1)-C(10) bond length is 1.39 Å. The C(1)-H(4) bond length is 0.93 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(11), one C(13), and one C(16) atom. The C(2)-C(11) bond length is 1.38 Å. The C(2)-C(13) bond length is 1.51 Å. The C(2)-C(16) bond length is 1.39 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(15), one C(8), and one H(3) atom. The C(3)-C(15) bond length is 1.39 Å. The C(3)-C(8) bond length is 1.38 Å. The C(3)-H(3) bond length is 0.93 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(7), one C(8), and one H(1) atom. The C(4)-C(7) bond length is 1.40 Å. The C(4)-C(8) bond length is 1.38 Å. The C(4)-H(1) bond length is 0.93 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(8), one O(2), and one O(5) atom. The C(5)-C(8) bond length is 1.50 Å. The C(5)-O(2) bond length is 1.24 Å. The C(5)-O(5) bond length is 1.25 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(15), one C(7), and one H(6) atom. The C(6)-C(15) bond length is 1.38 Å. The C(6)-C(7) bond length is 1.37 Å. The C(6)-H(6) bond length is 0.93 Å. In the seventh C site, C(7) is bonded in a distorted trigonal planar geometry to one C(4), one C(6), and one N(2) atom. The C(7)-N(2) bond length is 1.44 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one C(3), one C(4), and one C(5) atom. In the ninth C site, C(9) is bonded in a bent 120 degrees geometry to one C(15), one O(7), and one O(8) atom. The C(9)-C(15) bond length is 1.50 Å. The C(9)-O(7) bond length is 1.25 Å. The C(9)-O(8) bond length is 1.26 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one C(1), one C(12), and one C(16) atom. The C(10)-C(12) bond length is 1.51 Å. The C(10)-C(16) bond length is 1.39 Å. In the eleventh C site, C(11) is bonded in a distorted single-bond geometry to one C(2) and one H(2) atom. The C(11)-H(2) bond length is 0.93 Å. In the twelfth C site, C(12) is bonded in a bent 120 degrees geometry to one C(10), one O(1), and one O(3) atom. The C(12)-O(1) bond length is 1.24 Å. The C(12)-O(3) bond length is 1.24 Å. In the thirteenth C site, C(13) is bonded in a bent 120 degrees geometry to one C(2), one O(4), and one O(6) atom. The C(13)-O(4) bond length is 1.23 Å. The C(13)-O(6) bond length is 1.28 Å. In the fourteenth C site, C(15) is bonded in a trigonal planar geometry to one C(3), one C(6), and one C(9) atom. In the fifteenth C site, C(16) is bonded in a distorted single-bond geometry to one C(10), one C(2), and one H(5) atom. The C(16)-H(5) bond length is 0.93 Å. N(2) is bonded in a bent 120 degrees geometry to one C(7) and one N(2) atom. The N(2)-N(2) bond length is 1.24 Å. There are six inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(4) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(11) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(3) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(1) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(16) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(6) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in an L-shaped geometry to one Cd(2) and one C(12) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Cd(2) and one C(5) atom. In the third O site, O(3) is bonded in an L-shaped geometry to one Cd(2) and one C(12) atom. In the fourth O site, O(4) is bonded in a distorted L-shaped geometry to one Cd(2) and one C(13) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Cd(1) and one C(5) atom. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one Cd(1), one Cd(2), and one C(13) atom. In the seventh O site, O(7) is bonded in a water-like geometry to one Cd(2) and one C(9) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Cd(1) and one C(9) atom. Linkers: 4 [O]C(=O)c1cc(/N=N/c2cc(C([O])=O)cc(C([O])=O)c2)cc(C([O])=O)c1. Metal clusters: 4 O=[C]O[Cd]12(O[C]O[Cd]O[C]O1)O[C]O2. RCSR code: pts. The MOF has largest included sphere 8.95 A, density 0.83 g/cm3, surface area 3364.86 m2/g, accessible volume 0.89 cm3/g