Cd2C10N5H7O7 crystallizes in the triclinic P-1 space group. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to one N(2), one O(2), one O(4), one O(5), and two equivalent O(7) atoms to form distorted CdNO5 octahedra that share  a cornercorner with one Cd(2)N2O4 octahedra and  an edgeedge with one Cd(1)NO5 octahedra. The corner-sharing octahedral tilt angles are 76°. The Cd(1)-N(2) bond length is 2.26 Å. The Cd(1)-O(2) bond length is 2.43 Å. The Cd(1)-O(4) bond length is 2.29 Å. The Cd(1)-O(5) bond length is 2.49 Å. There is one shorter (2.25 Å) and one longer (2.52 Å) Cd(1)-O(7) bond length. In the second Cd site, Cd(2) is bonded to one N(1), one N(4), one O(1), one O(2), one O(3), and one O(6) atom to form corner-sharing CdN2O4 octahedra. The corner-sharing octahedral tilt angles are 76°. The Cd(2)-N(1) bond length is 2.38 Å. The Cd(2)-N(4) bond length is 2.32 Å. The Cd(2)-O(1) bond length is 2.39 Å. The Cd(2)-O(2) bond length is 2.41 Å. The Cd(2)-O(3) bond length is 2.28 Å. The Cd(2)-O(6) bond length is 2.30 Å. There are ten inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(6), and one C(7) atom. The C(1)-C(2) bond length is 1.40 Å. The C(1)-C(6) bond length is 1.40 Å. The C(1)-C(7) bond length is 1.50 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(1), one C(3), and one H(3) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-H(3) bond length is 1.09 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(8) atom. The C(3)-C(4) bond length is 1.40 Å. The C(3)-C(8) bond length is 1.49 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(3), one C(5), and one H(4) atom. The C(4)-C(5) bond length is 1.40 Å. The C(4)-H(4) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(6), and one C(9) atom. The C(5)-C(6) bond length is 1.40 Å. The C(5)-C(9) bond length is 1.49 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(1), one C(5), and one H(5) atom. The C(6)-H(5) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(2), and one O(3) atom. The C(7)-O(2) bond length is 1.28 Å. The C(7)-O(3) bond length is 1.27 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(4), and one O(5) atom. The C(8)-O(4) bond length is 1.28 Å. The C(8)-O(5) bond length is 1.28 Å. In the ninth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(6), and one O(7) atom. The C(9)-O(6) bond length is 1.26 Å. The C(9)-O(7) bond length is 1.30 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one N(1), one N(4), and one N(5) atom. The C(10)-N(1) bond length is 1.35 Å. The C(10)-N(4) bond length is 1.36 Å. The C(10)-N(5) bond length is 1.38 Å. There are five inequivalent N sites. In the first N site, N(1) is bonded in a 3-coordinate geometry to one Cd(2), one C(10), and one N(2) atom. The N(1)-N(2) bond length is 1.35 Å. In the second N site, N(2) is bonded in a trigonal planar geometry to one Cd(1), one N(1), and one N(3) atom. The N(2)-N(3) bond length is 1.30 Å. In the third N site, N(3) is bonded in a water-like geometry to one N(2) and one N(4) atom. The N(3)-N(4) bond length is 1.35 Å. In the fourth N site, N(4) is bonded in a 3-coordinate geometry to one Cd(2), one C(10), and one N(3) atom. In the fifth N site, N(5) is bonded in a distorted trigonal non-coplanar geometry to one C(10), one H(6), and one H(7) atom. The N(5)-H(6) bond length is 1.03 Å. The N(5)-H(7) bond length is 1.03 Å. There are seven inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. The H(1)-O(1) bond length is 1.00 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) atom. The H(2)-O(1) bond length is 0.97 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(4) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(6) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one N(5) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one N(5) atom. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted water-like geometry to one Cd(2), one H(1), and one H(2) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Cd(1), one Cd(2), and one C(7) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Cd(2) and one C(7) atom. In the fourth O site, O(4) is bonded in a distorted L-shaped geometry to one Cd(1) and one C(8) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Cd(1) and one C(8) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Cd(2) and one C(9) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to two equivalent Cd(1) and one C(9) atom. Linkers: 2 NC1=NN=N[N]1 ,2 [O]C(=O)c1cc(C([O])=O)cc(C([O])=O)c1. Metal clusters: 4 [Cd]. The MOF has largest included sphere 2.63 A, density 2.49 g/cm3, surface area 2605.45 m2/g, accessible volume 0.07 cm3/g