PbC2N8H6O3 crystallizes in the monoclinic P2_1/c space group. Pb(1) is bonded in a distorted pentagonal bipyramidal geometry to one N(1), one N(2), one N(7), one N(8), one O(1), one O(2), and one O(3) atom. The Pb(1)-N(1) bond length is 2.73 Å. The Pb(1)-N(2) bond length is 2.74 Å. The Pb(1)-N(7) bond length is 2.74 Å. The Pb(1)-N(8) bond length is 2.70 Å. The Pb(1)-O(1) bond length is 2.70 Å. The Pb(1)-O(2) bond length is 2.60 Å. The Pb(1)-O(3) bond length is 2.66 Å. There are two inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(2), one N(1), and one N(4) atom. The C(1)-C(2) bond length is 1.45 Å. The C(1)-N(1) bond length is 1.35 Å. The C(1)-N(4) bond length is 1.35 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(1), one N(5), and one N(8) atom. The C(2)-N(5) bond length is 1.35 Å. The C(2)-N(8) bond length is 1.35 Å. There are eight inequivalent N sites. In the first N site, N(1) is bonded in a distorted single-bond geometry to one Pb(1), one C(1), and one N(2) atom. The N(1)-N(2) bond length is 1.34 Å. In the second N site, N(2) is bonded in a trigonal planar geometry to one Pb(1), one N(1), and one N(3) atom. The N(2)-N(3) bond length is 1.32 Å. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one N(2), one N(4), and one H(4) atom. The N(3)-N(4) bond length is 1.34 Å. The N(3)-H(4) bond length is 1.79 Å. In the fourth N site, N(4) is bonded in a distorted single-bond geometry to one C(1), one N(3), and one H(1) atom. The N(4)-H(1) bond length is 1.75 Å. In the fifth N site, N(5) is bonded in a distorted single-bond geometry to one C(2), one N(6), and one H(6) atom. The N(5)-N(6) bond length is 1.34 Å. The N(5)-H(6) bond length is 1.75 Å. In the sixth N site, N(6) is bonded in a distorted trigonal planar geometry to one N(5), one N(7), and one H(3) atom. The N(6)-N(7) bond length is 1.32 Å. The N(6)-H(3) bond length is 1.76 Å. In the seventh N site, N(7) is bonded in a distorted trigonal planar geometry to one Pb(1), one N(6), and one N(8) atom. The N(7)-N(8) bond length is 1.33 Å. In the eighth N site, N(8) is bonded in a distorted single-bond geometry to one Pb(1), one C(2), and one N(7) atom. There are six inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one N(4) and one O(1) atom. The H(1)-O(1) bond length is 1.01 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 0.99 Å. In the third H site, H(3) is bonded in a single-bond geometry to one N(6) and one O(2) atom. The H(3)-O(2) bond length is 1.00 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one N(3) and one O(2) atom. The H(4)-O(2) bond length is 1.00 Å. 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 1.00 Å. In the sixth H site, H(6) is bonded in a single-bond geometry to one N(5) and one O(3) atom. The H(6)-O(3) bond length is 1.01 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one Pb(1), one H(1), and one H(2) atom. In the second O site, O(2) is bonded in a water-like geometry to one Pb(1), one H(3), and one H(4) atom. In the third O site, O(3) is bonded in a water-like geometry to one Pb(1), one H(5), and one H(6) atom. Linkers: 4 [N]1N=NN=C1C1=NN=N[N]1. Metal clusters: 4 [Pb]. The MOF has largest included sphere 1.69 A, density 3.08 g/cm3, surface area 2260.14 m2/g, accessible volume 0.06 cm3/g