Cu3H8(C11O6)2 crystallizes in the orthorhombic Immm space group. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 4-coordinate geometry to one O(1), one O(3), one O(4), and one O(6) atom. The Cu(1)-O(1) bond length is 1.91 Å. The Cu(1)-O(3) bond length is 1.93 Å. The Cu(1)-O(4) bond length is 2.00 Å. The Cu(1)-O(6) bond length is 1.99 Å. In the second Cu site, Cu(2) is bonded in a rectangular see-saw-like geometry to four equivalent O(2) atoms. All Cu(2)-O(2) bond lengths are 1.97 Å. In the third Cu site, Cu(3) is bonded in a square co-planar geometry to four equivalent O(5) atoms. All Cu(3)-O(5) bond lengths are 1.91 Å. There are sixteen inequivalent C sites. In the first C site, C(7) is bonded in a trigonal planar geometry to one C(8) and two equivalent C(4) atoms. The C(7)-C(8) bond length is 1.61 Å. Both C(7)-C(4) bond lengths are 1.43 Å. In the second C site, C(8) is bonded in a water-like geometry to one C(7), one C(9), and two equivalent H(2) atoms. The C(8)-C(9) bond length is 1.49 Å. Both C(8)-H(2) bond lengths are 0.99 Å. In the third C site, C(9) is bonded in a single-bond geometry to one C(8) atom. In the fourth C site, C(10) is bonded in a trigonal planar geometry to one C(11) and two equivalent C(5) atoms. The C(10)-C(11) bond length is 1.54 Å. Both C(10)-C(5) bond lengths are 1.42 Å. In the fifth C site, C(11) is bonded in a distorted bent 120 degrees geometry to one C(10) and two equivalent O(2) atoms. Both C(11)-O(2) bond lengths are 1.23 Å. In the sixth C site, C(12) is bonded in a distorted bent 120 degrees geometry to one C(15) and two equivalent O(5) atoms. The C(12)-C(15) bond length is 1.48 Å. Both C(12)-O(5) bond lengths are 1.32 Å. In the seventh C site, C(13) is bonded in a single-bond geometry to one C(16) atom. The C(13)-C(16) bond length is 1.57 Å. In the eighth C site, C(14) is bonded in a trigonal planar geometry to one C(16) and two equivalent C(1) atoms. The C(14)-C(16) bond length is 1.43 Å. Both C(14)-C(1) bond lengths are 1.44 Å. In the ninth C site, C(15) is bonded in a trigonal planar geometry to one C(12) and two equivalent C(2) atoms. Both C(15)-C(2) bond lengths are 1.42 Å. In the tenth C site, C(16) is bonded in a distorted water-like geometry to one C(13), one C(14), and two equivalent H(4) atoms. Both C(16)-H(4) bond lengths are 0.99 Å. In the eleventh C site, C(1) is bonded in a trigonal planar geometry to one C(14), one C(2), and one C(3) atom. The C(1)-C(2) bond length is 1.36 Å. The C(1)-C(3) bond length is 1.49 Å. In the twelfth C site, C(2) is bonded in a distorted single-bond geometry to one C(1), one C(15), and one H(1) atom. The C(2)-H(1) bond length is 0.95 Å. In the thirteenth C site, C(3) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(3), and one O(4) atom. The C(3)-O(3) bond length is 1.15 Å. The C(3)-O(4) bond length is 1.29 Å. In the fourteenth C site, C(4) is bonded in a trigonal planar geometry to one C(5), one C(6), and one C(7) atom. The C(4)-C(5) bond length is 1.30 Å. The C(4)-C(6) bond length is 1.56 Å. In the fifteenth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(10), one C(4), and one H(3) atom. The C(5)-H(3) bond length is 0.95 Å. In the sixteenth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(1), and one O(6) atom. The C(6)-O(1) bond length is 1.34 Å. The C(6)-O(6) bond length is 1.14 Å. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(8) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(5) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(16) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Cu(1) and one C(6) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Cu(2) and one C(11) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Cu(1) and one C(3) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Cu(1) and one C(3) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Cu(3) and one C(12) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one Cu(1) and one C(6) atom. Linkers: 8 [C]Cc1c(C([O])=O)cc(C([O])=O)cc1C([O])=O. Metal clusters: 6 [C]1O[Cu]234O[C]O[Cu]2(O1)(O[C]O3)O[C]O4. RCSR code: fmj. The MOF has largest included sphere 9.35 A, density 1.04 g/cm3, surface area 3483.29 m2/g, accessible volume 0.66 cm3/g