CuC5N3H9SO7 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent N(1), two equivalent O(1), and two equivalent O(6) atoms to form distorted CuN2O4 octahedra that share corners with two equivalent S(1)O4 tetrahedra. Both Cu(1)-N(1) bond lengths are 1.98 Å. Both Cu(1)-O(1) bond lengths are 1.97 Å. Both Cu(1)-O(6) bond lengths are 2.54 Å. In the second Cu site, Cu(2) is bonded in an octahedral geometry to two equivalent N(2), two equivalent O(2), and two equivalent O(3) atoms. Both Cu(2)-N(2) bond lengths are 2.02 Å. Both Cu(2)-O(2) bond lengths are 2.44 Å. Both Cu(2)-O(3) bond lengths are 1.99 Å. There are five inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(2), one N(1), and one H(1) atom. The C(1)-C(2) bond length is 1.40 Å. The C(1)-N(1) bond length is 1.33 Å. The C(1)-H(1) bond length is 1.09 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(1), one N(2), and one H(2) atom. The C(2)-N(2) bond length is 1.34 Å. The C(2)-H(2) bond length is 1.09 Å. In the third C site, C(3) is bonded in a distorted trigonal planar geometry to one C(4), one N(2), and one H(3) atom. The C(3)-C(4) bond length is 1.39 Å. The C(3)-N(2) bond length is 1.34 Å. The C(3)-H(3) 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 N(1) atom. The C(4)-C(5) bond length is 1.49 Å. The C(4)-N(1) bond length is 1.35 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(4), one N(3), and one O(1) atom. The C(5)-N(3) bond length is 1.32 Å. The C(5)-O(1) bond length is 1.28 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Cu(1), one C(1), and one C(4) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one Cu(2), one C(2), and one C(3) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one C(5), one H(4), and one H(5) atom. The N(3)-H(4) bond length is 1.04 Å. The N(3)-H(5) bond length is 1.04 Å. There are nine inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(3) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one N(3) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one N(3) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(2) atom. The H(6)-O(2) bond length is 0.99 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(2) atom. The H(7)-O(2) bond length is 0.99 Å. In the eighth H site, H(8) is bonded in a distorted single-bond geometry to one O(3) and one O(7) atom. The H(8)-O(3) bond length is 1.00 Å. The H(8)-O(7) bond length is 1.64 Å. In the ninth H site, H(9) is bonded in a distorted linear geometry to one O(3) and one O(4) atom. The H(9)-O(3) bond length is 1.01 Å. The H(9)-O(4) bond length is 1.64 Å. S(1) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form SO4 tetrahedra that share  a cornercorner with one Cu(1)N2O4 octahedra. The corner-sharing octahedral tilt angles are 58°. The S(1)-O(4) bond length is 1.50 Å. The S(1)-O(5) bond length is 1.48 Å. The S(1)-O(6) bond length is 1.49 Å. The S(1)-O(7) bond length is 1.51 Å. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Cu(1) and one C(5) atom. In the second O site, O(2) is bonded in a water-like geometry to one Cu(2), one H(6), and one H(7) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Cu(2), one H(8), and one H(9) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one H(9) and one S(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one S(1) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Cu(1) and one S(1) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one H(8) and one S(1) atom. Linkers: 4 NC(=O)c1cnccn1. Metal clusters: 4 [Cu]. The MOF has largest included sphere 1.68 A, density 2.18 g/cm3, surface area 3221.14 m2/g, accessible volume 0.09 cm3/g