CaPbH6(C7O4)2(CHO)2 crystallizes in the tetragonal I-42d space group. The structure consists of sixteen methanol molecules inside a CaPbH6(C7O4)2 framework. In the CaPbH6(C7O4)2 framework, Ca(1) is bonded in a rectangular see-saw-like geometry to two equivalent O(1) and two equivalent O(3) atoms. Both Ca(1)-O(1) bond lengths are 2.32 Å. Both Ca(1)-O(3) bond lengths are 2.30 Å. Pb(1) is bonded in a 4-coordinate geometry to two equivalent O(2) and two equivalent O(4) atoms. Both Pb(1)-O(2) bond lengths are 2.33 Å. Both Pb(1)-O(4) bond lengths are 2.67 Å. There are seven inequivalent C sites. In the first C site, C(1) is bonded in a bent 120 degrees geometry to one C(3), one O(1), and one O(2) atom. The C(1)-C(3) bond length is 1.49 Å. The C(1)-O(1) bond length is 1.27 Å. The C(1)-O(2) bond length is 1.26 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(3), and one O(4) atom. The C(2)-C(5) bond length is 1.52 Å. The C(2)-O(3) bond length is 1.26 Å. The C(2)-O(4) bond length is 1.25 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(1), one C(4), and one C(8) atom. The C(3)-C(4) bond length is 1.38 Å. The C(3)-C(8) bond length is 1.39 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 1.38 Å. The C(4)-H(2) bond length is 0.93 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(6) atom. The C(5)-C(6) bond length is 1.39 Å. In the sixth C site, C(6) is bonded in a single-bond geometry to one C(5) and one H(3) atom. The C(6)-H(3) bond length is 0.93 Å. In the seventh C site, C(8) is bonded in a single-bond geometry to one C(3) and one H(4) atom. The C(8)-H(4) bond length is 0.93 Å. There are three inequivalent H sites. In the first H site, H(2) is bonded in a single-bond geometry to one C(4) atom. In the second H site, H(3) is bonded in a single-bond geometry to one C(6) atom. In the third H site, H(4) is bonded in a single-bond geometry to one C(8) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Ca(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted water-like geometry to one Pb(1) and one C(1) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one Ca(1) and one C(2) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one Pb(1) and one C(2) atom. Linkers: 8 [O]C(=O)c1cc(O)cc(C([O])=O)c1. Metal clusters: 4 [Ca] ,4 [Pb]. The MOF has largest included sphere 5.27 A, density 1.92 g/cm3, surface area 2843.42 m2/g, accessible volume 0.19 cm3/g