ZnH10(C5O2)3 crystallizes in the triclinic P-1 space group. Zn(1) is bonded in a trigonal bipyramidal geometry to one O(1); one O(2); one O(3); and two equivalent O(5,6) atoms. The Zn(1)-O(1) bond length is 1.98 Å. The Zn(1)-O(2) bond length is 1.98 Å. The Zn(1)-O(3) bond length is 1.98 Å. Both Zn(1)-O(5,6) bond lengths are 2.20 Å. There are twelve inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(14); one C(7,8); and one C(9,10) atom. The C(1)-C(14) bond length is 1.49 Å. The C(1)-C(7,8) bond length is 1.40 Å. The C(1)-C(9,10) bond length is 1.40 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(15); one C(7,8); and one C(9,10) atom. The C(2)-C(15) bond length is 1.49 Å. The C(2)-C(7,8) bond length is 1.40 Å. The C(2)-C(9,10) bond length is 1.40 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(5,6); one C(7,8); and one H(1,2) atom. The C(3)-C(5,6) bond length is 1.41 Å. The C(3)-C(7,8) bond length is 1.39 Å. The C(3)-H(1,2) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(5,6); one C(7,8); and one H(1,2) atom. The C(4)-C(5,6) bond length is 1.41 Å. The C(4)-C(7,8) bond length is 1.39 Å. The C(4)-H(1,2) bond length is 1.09 Å. In the fifth C site, C(5,6) is bonded in a trigonal planar geometry to one C(11), one C(12), and one C(3) atom. The C(5,6)-C(11) bond length is 1.49 Å. The C(5,6)-C(12) bond length is 1.41 Å. In the sixth C site, C(7,8) is bonded in a distorted trigonal planar geometry to one C(1); one C(3); and one H(3,4) atom. The C(7,8)-H(3,4) bond length is 1.09 Å. In the seventh C site, C(9,10) is bonded in a distorted trigonal planar geometry to one C(1), one C(12), and one H(5) atom. The C(9,10)-C(12) bond length is 1.39 Å. The C(9,10)-H(5) bond length is 1.09 Å. In the eighth C site, C(11) is bonded in a distorted single-bond geometry to two equivalent C(5,6) and one O(4) atom. The C(11)-O(4) bond length is 1.24 Å. In the ninth C site, C(12) is bonded in a distorted single-bond geometry to one C(5,6); one C(9,10); and one H(7,8) atom. The C(12)-H(7,8) bond length is 1.09 Å. In the tenth C site, C(13) is bonded in a distorted single-bond geometry to one C(5,6); one C(9,10); and one H(7,8) atom. The C(13)-C(5,6) bond length is 1.41 Å. The C(13)-C(9,10) bond length is 1.39 Å. The C(13)-H(7,8) bond length is 1.09 Å. In the eleventh C site, C(14) is bonded in a distorted bent 120 degrees geometry to one C(1); one O(2); and one O(5,6) atom. The C(14)-O(2) bond length is 1.28 Å. The C(14)-O(5,6) bond length is 1.28 Å. In the twelfth C site, C(15) is bonded in a distorted bent 120 degrees geometry to one C(2); one O(3); and one O(5,6) atom. The C(15)-O(3) bond length is 1.28 Å. The C(15)-O(5,6) bond length is 1.28 Å. There are seven inequivalent H sites. In the first H site, H(1,2) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(3,4) is bonded in a single-bond geometry to one C(7,8) atom. In the third H site, H(5) is bonded in a single-bond geometry to one C(9,10) atom. In the fourth H site, H(6) is bonded in a single-bond geometry to one C(9,10) atom. The H(6)-C(9,10) bond length is 1.09 Å. In the fifth H site, H(7,8) is bonded in a single-bond geometry to one C(12) atom. In the sixth H site, H(9) is bonded in a distorted linear geometry to one O(1) and one O(5,6) atom. The H(9)-O(1) bond length is 1.00 Å. The H(9)-O(5,6) bond length is 1.60 Å. In the seventh H site, H(10) is bonded in a distorted linear geometry to one O(1) and one O(5,6) atom. The H(10)-O(1) bond length is 1.00 Å. The H(10)-O(5,6) bond length is 1.60 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Zn(1), one H(10), and one H(9) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(14) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(15) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one C(11) atom. In the fifth O site, O(5,6) is bonded in a distorted trigonal planar geometry to one Zn(1), one C(14), and one H(10) atom. Linkers: 2 [O]C(=O)c1ccc(C(=O)c2ccc(C([O])=O)cc2)cc1. Metal clusters: 2 [Zn]. RCSR code: sql. The MOF has largest included sphere 1.81 A, density 1.82 g/cm3, surface area 3974.48 m2/g, accessible volume 0.14 cm3/g