PbH4(C3O2)3 crystallizes in the monoclinic C2/c space group. Pb(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(6), two equivalent O(3), and two equivalent O(4) atoms. The Pb(1)-O(1) bond length is 2.64 Å. The Pb(1)-O(2) bond length is 2.46 Å. The Pb(1)-O(6) bond length is 2.75 Å. There is one shorter (2.61 Å) and one longer (2.65 Å) Pb(1)-O(3) bond length. There is one shorter (2.61 Å) and one longer (2.85 Å) Pb(1)-O(4) bond length. There are nine 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 1.49 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(2) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-H(2) 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 single-bond geometry to one C(3), one C(5), and one H(3) atom. The C(4)-C(5) bond length is 1.40 Å. The C(4)-H(3) 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 trigonal planar geometry to one C(1), one C(5), and one H(4) atom. The C(6)-H(4) 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(1), and one O(2) atom. The C(7)-O(1) bond length is 1.28 Å. The C(7)-O(2) bond length is 1.28 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(3), and one O(4) atom. The C(8)-O(3) bond length is 1.28 Å. The C(8)-O(4) bond length is 1.27 Å. In the ninth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(5), and one O(6) atom. The C(9)-O(5) bond length is 1.33 Å. The C(9)-O(6) bond length is 1.24 Å. There are four inequivalent H sites. In the first H site, H(1) is bonded in a distorted linear geometry to one O(1) and one O(5) atom. The H(1)-O(1) bond length is 1.60 Å. The H(1)-O(5) bond length is 1.01 Å. In the second H site, H(2) is bonded in a single-bond geometry to one C(2) 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(6) atom. There are six inequivalent O sites. In the first O site, O(5) is bonded in a water-like geometry to one C(9) and one H(1) atom. In the second O site, O(6) is bonded in a single-bond geometry to one Pb(1) and one C(9) atom. In the third O site, O(1) is bonded in a 2-coordinate geometry to one Pb(1), one C(7), and one H(1) atom. In the fourth O site, O(2) is bonded in a distorted single-bond geometry to one Pb(1) and one C(7) atom. In the fifth O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Pb(1) and one C(8) atom. In the sixth O site, O(4) is bonded in a single-bond geometry to two equivalent Pb(1) and one C(8) atom. Linkers: 4 [O]C(=O)c1cc(C([O])=O)cc(C(=O)O)c1. Metal clusters: 4 [Pb]. The MOF has largest included sphere 4.03 A, density 2.41 g/cm3, surface area 2400.98 m2/g, accessible volume 0.12 cm3/g