(CH)4PbH10(C5O2)4 crystallizes in the monoclinic C2/c space group. The structure consists of sixteen 02329_fluka molecules inside a PbH10(C5O2)4 framework. In the PbH10(C5O2)4 framework, Pb(1) is bonded in a 6-coordinate geometry to two equivalent O(3) and four equivalent O(1) atoms. Both Pb(1)-O(3) bond lengths are 2.75 Å. There are two shorter (2.56 Å) and two longer (2.60 Å) Pb(1)-O(1) bond lengths. There are ten 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 1.50 Å. The C(1)-O(1) bond length is 1.28 Å. The C(1)-O(2) bond length is 1.27 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 1.39 Å. The C(2)-C(7) bond length is 1.43 Å. In the third C site, C(3) is bonded in a distorted trigonal planar geometry to one C(2), one C(4), and one H(1) atom. The C(3)-C(4) bond length is 1.40 Å. The C(3)-H(1) bond length is 1.09 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(2) atom. The C(4)-C(5) bond length is 1.39 Å. The C(4)-H(2) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(12), one C(4), and one C(6) atom. The C(5)-C(12) bond length is 1.49 Å. The C(5)-C(6) bond length is 1.44 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(11), one C(5), and one C(7) atom. The C(6)-C(11) bond length is 1.42 Å. The C(6)-C(7) bond length is 1.45 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(2), one C(6), and one C(8) atom. The C(7)-C(8) bond length is 1.42 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(7) and one H(3) atom. The C(8)-H(3) bond length is 1.08 Å. In the ninth C site, C(11) is bonded in a distorted single-bond geometry to one C(6) and one H(6) atom. The C(11)-H(6) bond length is 1.08 Å. In the tenth C site, C(12) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(3), and one O(4) atom. The C(12)-O(3) bond length is 1.24 Å. The C(12)-O(4) bond length is 1.33 Å. There are five inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(4) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(8) atom. In the fourth H site, H(6) is bonded in a single-bond geometry to one C(11) atom. In the fifth H site, H(7) is bonded in a distorted linear geometry to one O(2) and one O(4) atom. The H(7)-O(2) bond length is 1.64 Å. The H(7)-O(4) bond length is 1.01 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to two equivalent Pb(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one C(1) and one H(7) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Pb(1) and one C(12) atom. In the fourth O site, O(4) is bonded in a water-like geometry to one C(12) and one H(7) atom. Linkers: 4 [O]C(=O)c1ccc(C(=O)O)c2ccccc12. Metal clusters: 2 [Pb]. The MOF has largest included sphere 1.86 A, density 2.13 g/cm3, surface area 3221.56 m2/g, accessible volume 0.07 cm3/g