Pb2C12N2H10O5I2 crystallizes in the monoclinic C2/c space group. Pb(1) is bonded in a 7-coordinate geometry to one N(1), one O(1), one O(3), two equivalent O(2), and two equivalent I(1) atoms. The Pb(1)-N(1) bond length is 2.66 Å. The Pb(1)-O(1) bond length is 2.64 Å. The Pb(1)-O(3) bond length is 2.85 Å. There is one shorter (2.83 Å) and one longer (2.84 Å) Pb(1)-O(2) bond length. There is one shorter (3.11 Å) and one longer (3.36 Å) Pb(1)-I(1) bond length. There are six inequivalent C sites. In the first C site, C(5) is bonded in a distorted single-bond geometry to one C(2), one C(6), and one H(4) atom. The C(5)-C(2) bond length is 1.39 Å. The C(5)-C(6) bond length is 1.40 Å. The C(5)-H(4) bond length is 1.09 Å. In the second C site, C(6) is bonded in a trigonal planar geometry to one C(1), one C(4), and one C(5) atom. The C(6)-C(1) bond length is 1.50 Å. The C(6)-C(4) bond length is 1.40 Å. In the third C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(6), one O(1), and one O(2) atom. The C(1)-O(1) bond length is 1.26 Å. The C(1)-O(2) bond length is 1.29 Å. In the fourth C site, C(2) is bonded in a distorted trigonal planar geometry to one C(5), one N(1), and one H(1) atom. The C(2)-N(1) bond length is 1.35 Å. The C(2)-H(1) bond length is 1.09 Å. In the fifth C site, C(3) is bonded in a distorted trigonal planar geometry to one C(4), one N(1), and one H(2) atom. The C(3)-C(4) bond length is 1.39 Å. The C(3)-N(1) bond length is 1.35 Å. The C(3)-H(2) bond length is 1.09 Å. In the sixth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(3), one C(6), and one H(3) atom. The C(4)-H(3) bond length is 1.09 Å. N(1) is bonded in a distorted bent 120 degrees geometry to one Pb(1), one C(2), and one C(3) atom. There are five inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(5) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(3) atom. The H(5)-O(3) bond length is 0.99 Å. There are three inequivalent O sites. In the first O site, O(3) is bonded in a water-like geometry to two equivalent Pb(1) and two equivalent H(5) atoms. In the second O site, O(1) is bonded in a single-bond geometry to one Pb(1) and one C(1) atom. In the third O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Pb(1) and one C(1) atom. I(1) is bonded in an L-shaped geometry to two equivalent Pb(1) atoms. Linkers: 4 [O]C(=O)c1ccncc1. Metal clusters: 4 [Pb]. The MOF has largest included sphere 2.08 A, density 3.43 g/cm3, surface area 1993.80 m2/g, accessible volume 0.08 cm3/g