CdC10N3H9O4 crystallizes in the orthorhombic Pbcn space group. Cd(1) is bonded to one N(1), one N(2), one O(1), one O(2), one O(3), and one O(4) atom to form distorted CdN2O4 octahedra that share  a cornercorner with one C(10)H2N2 tetrahedra,  a cornercorner with one C(8)H2N2 tetrahedra, and  a cornercorner with one C(9)H2N2 tetrahedra. The Cd(1)-N(1) bond length is 2.38 Å. The Cd(1)-N(2) bond length is 2.44 Å. The Cd(1)-O(1) bond length is 2.31 Å. The Cd(1)-O(2) bond length is 2.58 Å. The Cd(1)-O(3) bond length is 2.48 Å. The Cd(1)-O(4) bond length is 2.43 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 1.25 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(7) atom. The C(2)-C(3) bond length is 1.43 Å. The C(2)-C(7) bond length is 1.37 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(5) atom. The C(3)-C(4) bond length is 1.50 Å. The C(3)-C(5) bond length is 1.38 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(3), and one O(4) atom. The C(4)-O(3) bond length is 1.28 Å. The C(4)-O(4) bond length is 1.23 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(3) and one H(1) atom. The C(5)-H(1) bond length is 0.93 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(2) atom. The C(6)-N(1) bond length is 1.32 Å. The C(6)-H(2) bond length is 0.93 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(2), one N(1), and one H(3) atom. The C(7)-N(1) bond length is 1.35 Å. The C(7)-H(3) bond length is 0.93 Å. In the eighth C site, C(8) is bonded to one N(2); one N(3); and two equivalent H(4,5) atoms to form CH2N2 tetrahedra that share  a cornercorner with one Cd(1)N2O4 octahedra,  a cornercorner with one C(10)H2N2 tetrahedra,  a cornercorner with one C(11)H2N2 tetrahedra, and corners with two equivalent C(9)H2N2 tetrahedra. The corner-sharing octahedral tilt angles are 71°. The C(8)-N(2) bond length is 1.44 Å. The C(8)-N(3) bond length is 1.46 Å. Both C(8)-H(4,5) bond lengths are 0.97 Å. In the ninth C site, C(9) is bonded to one N(2); one N(3); and two equivalent H(7,8) atoms to form CH2N2 tetrahedra that share  a cornercorner with one Cd(1)N2O4 octahedra,  a cornercorner with one C(10)H2N2 tetrahedra,  a cornercorner with one C(11)H2N2 tetrahedra, and corners with two equivalent C(8)H2N2 tetrahedra. The corner-sharing octahedral tilt angles are 74°. The C(9)-N(2) bond length is 1.49 Å. The C(9)-N(3) bond length is 1.44 Å. Both C(9)-H(7,8) bond lengths are 0.97 Å. In the tenth C site, C(10) is bonded to two equivalent N(2) and two equivalent H(6) atoms to form CH2N2 tetrahedra that share corners with two equivalent Cd(1)N2O4 octahedra, corners with two equivalent C(8)H2N2 tetrahedra, and corners with two equivalent C(9)H2N2 tetrahedra. The corner-sharing octahedral tilt angles are 62°. Both C(10)-N(2) bond lengths are 1.46 Å. Both C(10)-H(6) bond lengths are 0.97 Å. In the eleventh C site, C(11) is bonded to two equivalent N(3) and two equivalent H(9) atoms to form corner-sharing CH2N2 tetrahedra. Both C(11)-N(3) bond lengths are 1.42 Å. Both C(11)-H(9) bond lengths are 0.97 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Cd(1), one C(6), and one C(7) atom. In the second N site, N(2) is bonded to one Cd(1), one C(10), one C(8), and one C(9) atom to form distorted corner-sharing NCdC3 tetrahedra. In the third N site, N(3) is bonded in a trigonal non-coplanar geometry to one C(11), one C(8), and one C(9) atom. There are seven inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(5) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(6) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(7) atom. In the fourth H site, H(4,5) is bonded in a single-bond geometry to one C(8) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one C(10) atom. In the sixth H site, H(7,8) is bonded in a single-bond geometry to one C(9) atom. In the seventh H site, H(9) 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 a distorted water-like geometry to one Cd(1) and one C(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one Cd(1) and one C(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Cd(1) and one C(4) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Cd(1) and one C(4) atom. Linkers: 8 [O]C(=O)c1ccncc1C([O])=O ,5 C1N2CN3CN1CN(C2)C3. Metal clusters: 8 O=[C]O[Cd]1O[C]O1. The MOF has largest included sphere 7.22 A, density 1.28 g/cm3, surface area 3545.78 m2/g, accessible volume 0.38 cm3/g