Cu3C8H12(N2O)8 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a square pyramidal geometry to one N(2), one N(6), one N(8), one O(2), and one O(3) atom. The Cu(1)-N(2) bond length is 1.97 Å. The Cu(1)-N(6) bond length is 1.97 Å. The Cu(1)-N(8) bond length is 2.06 Å. The Cu(1)-O(2) bond length is 2.36 Å. The Cu(1)-O(3) bond length is 1.98 Å. In the second Cu site, Cu(2) is bonded in a square co-planar geometry to two equivalent N(4) and two equivalent O(1) atoms. Both Cu(2)-N(4) bond lengths are 2.05 Å. Both Cu(2)-O(1) bond lengths are 1.97 Å. There are four inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one N(2), one N(3), and one O(1) atom. The C(1)-N(2) bond length is 1.32 Å. The C(1)-N(3) bond length is 1.37 Å. The C(1)-O(1) bond length is 1.27 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one N(1), one N(3), and one O(2) atom. The C(2)-N(1) bond length is 1.34 Å. The C(2)-N(3) bond length is 1.38 Å. The C(2)-O(2) bond length is 1.24 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one N(6), one N(7), and one O(3) atom. The C(3)-N(6) bond length is 1.33 Å. The C(3)-N(7) bond length is 1.38 Å. The C(3)-O(3) bond length is 1.25 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one N(5), one N(7), and one O(4) atom. The C(4)-N(5) bond length is 1.33 Å. The C(4)-N(7) bond length is 1.38 Å. The C(4)-O(4) bond length is 1.23 Å. There are eight inequivalent N sites. In the first N site, N(1) is bonded in a 2-coordinate geometry to one C(2), one N(2), and one H(1) atom. The N(1)-N(2) bond length is 1.40 Å. The N(1)-H(1) bond length is 0.86 Å. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one Cu(1), one C(1), and one N(1) atom. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one C(1), one C(2), and one N(4) atom. The N(3)-N(4) bond length is 1.41 Å. In the fourth N site, N(4) is bonded in a distorted water-like geometry to one Cu(2), one N(3), one H(2), and one H(3) atom. The N(4)-H(2) bond length is 0.90 Å. The N(4)-H(3) bond length is 0.90 Å. In the fifth N site, N(5) is bonded in a 1-coordinate geometry to one C(4), one N(6), and one H(4) atom. The N(5)-N(6) bond length is 1.41 Å. The N(5)-H(4) bond length is 0.86 Å. In the sixth N site, N(6) is bonded in a 3-coordinate geometry to one Cu(1), one C(3), and one N(5) atom. In the seventh N site, N(7) is bonded in a distorted trigonal planar geometry to one C(3), one C(4), and one N(8) atom. The N(7)-N(8) bond length is 1.41 Å. In the eighth N site, N(8) is bonded in a distorted water-like geometry to one Cu(1); one N(7); and two equivalent H(5,6) atoms. Both N(8)-H(5,6) bond lengths are 0.90 Å. There are five inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one N(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one N(4) atom. In the third H site, H(3) is bonded in a single-bond geometry to one N(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one N(5) atom. In the fifth H site, H(5,6) is bonded in a single-bond geometry to one N(8) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one Cu(2) and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Cu(1) and one C(2) atom. In the third O site, O(3) is bonded in a water-like geometry to one Cu(1) and one C(3) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one C(4) atom. Linkers: 8 NN1C(=O)[N]NC1=O. Metal clusters: 6 [Cu]. The MOF has largest included sphere 3.86 A, density 1.58 g/cm3, surface area 3407.83 m2/g, accessible volume 0.30 cm3/g