CdC12H10(NO)4 crystallizes in the tetragonal I4_1/a space group. Cd(1) is bonded in a 6-coordinate geometry to one N(2), one N(4), one O(1), one O(2), one O(3), and one O(4) atom. The Cd(1)-N(2) bond length is 2.23 Å. The Cd(1)-N(4) bond length is 2.29 Å. The Cd(1)-O(1) bond length is 2.30 Å. The Cd(1)-O(2) bond length is 2.53 Å. The Cd(1)-O(3) bond length is 2.28 Å. The Cd(1)-O(4) bond length is 2.71 Å. There are twelve inequivalent C sites. In the first C site, C(11) is bonded in a distorted single-bond geometry to one C(10), one C(12), and one H(10) atom. The C(11)-C(10) bond length is 1.35 Å. The C(11)-C(12) bond length is 1.47 Å. The C(11)-H(10) bond length is 1.09 Å. In the second C site, C(12) is bonded in a bent 120 degrees geometry to one C(11), one O(1), and one O(2) atom. The C(12)-O(1) bond length is 1.28 Å. The C(12)-O(2) bond length is 1.29 Å. In the third C site, C(1) is bonded in a distorted single-bond geometry to one C(2), one C(4), and one N(1) atom. The C(1)-C(2) bond length is 1.39 Å. The C(1)-C(4) bond length is 1.43 Å. The C(1)-N(1) bond length is 1.39 Å. In the fourth C site, C(2) is bonded in a distorted trigonal planar geometry to one C(1), one N(2), and one H(3) atom. The C(2)-N(2) bond length is 1.37 Å. The C(2)-H(3) bond length is 1.08 Å. In the fifth C site, C(3) is bonded in a trigonal planar geometry to one N(1), one N(2), and one H(4) atom. The C(3)-N(1) bond length is 1.34 Å. The C(3)-N(2) bond length is 1.34 Å. The C(3)-H(4) bond length is 1.08 Å. In the sixth C site, C(4) is bonded in a distorted single-bond geometry to one C(1), one C(5), and one H(5) atom. The C(4)-C(5) bond length is 1.35 Å. The C(4)-H(5) bond length is 1.09 Å. In the seventh C site, C(5) is bonded in a distorted single-bond geometry to one C(4) and one H(6) atom. The C(5)-H(6) bond length is 1.09 Å. In the eighth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. The C(6)-O(3) bond length is 1.30 Å. The C(6)-O(4) bond length is 1.26 Å. In the ninth C site, C(7) is bonded in a distorted single-bond geometry to one C(10), one C(8), and one N(3) atom. The C(7)-C(10) bond length is 1.43 Å. The C(7)-C(8) bond length is 1.39 Å. The C(7)-N(3) bond length is 1.39 Å. In the tenth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(7), one N(4), and one H(7) atom. The C(8)-N(4) bond length is 1.37 Å. The C(8)-H(7) bond length is 1.09 Å. In the eleventh C site, C(9) is bonded in a trigonal planar geometry to one N(3), one N(4), and one H(8) atom. The C(9)-N(3) bond length is 1.35 Å. The C(9)-N(4) bond length is 1.34 Å. The C(9)-H(8) bond length is 1.09 Å. In the twelfth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(11), one C(7), and one H(9) atom. The C(10)-H(9) bond length is 1.09 Å. There are four inequivalent N sites. In the first N site, N(3) is bonded in a distorted trigonal planar geometry to one C(7), one C(9), and one H(2) atom. The N(3)-H(2) bond length is 1.05 Å. In the second N site, N(4) is bonded in a trigonal planar geometry to one Cd(1), one C(8), and one C(9) atom. In the third N site, N(2) is bonded in a distorted trigonal planar geometry to one Cd(1), one C(2), and one C(3) atom. In the fourth N site, N(1) is bonded in a trigonal planar geometry to one C(1), one C(3), and one H(1) atom. The N(1)-H(1) bond length is 1.05 Å. There are ten inequivalent H sites. In the first H site, H(1) is bonded in a distorted linear geometry to one N(1) and one O(3) atom. The H(1)-O(3) bond length is 1.65 Å. In the second H site, H(2) is bonded in a distorted linear geometry to one N(3) and one O(2) atom. The H(2)-O(2) bond length is 1.69 Å. In the third H site, H(3) is bonded in a single-bond geometry to one C(2) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(3) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(4) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(5) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(8) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(9) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(10) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(11) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in an L-shaped geometry to one Cd(1) and one C(12) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Cd(1), one C(12), and one H(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Cd(1), one C(6), and one H(1) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one Cd(1) and one C(6) atom. Linkers: 2 [O]C(=O)/C=C/C1=CN([Cd]2(OC(=O)/C=C/c3cnc[nH]3)(N3[CH]NC(/C=C/C([O])=O)=C3)OC(=C[CH]c3cnc[nH]3)O2)[CH]N1 ,7 [O]C(=O)/C=C/c1cnc[nH]1. Metal clusters: 4 O=[C]O[Cd]1O[C]O1 ,2 [Cd]. The MOF has largest included sphere 7.75 A, density 1.27 g/cm3, surface area 4108.89 m2/g, accessible volume 0.39 cm3/g