CHCu2C8N7H4SO4 crystallizes in the trigonal R-3 space group. The structure consists of eighteen 02329_fluka molecules inside a Cu2C8N7H4SO4 framework. In the Cu2C8N7H4SO4 framework, there are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a rectangular see-saw-like geometry to one N(1), one N(2), one N(7), and one O(1) atom. The Cu(1)-N(1) bond length is 2.03 Å. The Cu(1)-N(2) bond length is 1.98 Å. The Cu(1)-N(7) bond length is 1.98 Å. The Cu(1)-O(1) bond length is 1.95 Å. In the second Cu site, Cu(2) is bonded in a rectangular see-saw-like geometry to one N(3), one N(5), one N(6), and one O(4) atom. The Cu(2)-N(3) bond length is 2.01 Å. The Cu(2)-N(5) bond length is 2.02 Å. The Cu(2)-N(6) bond length is 1.96 Å. The Cu(2)-O(4) bond length is 1.94 Å. There are eight inequivalent C sites. In the first C site, C(3) is bonded in a distorted single-bond geometry to one C(4) and one H(3) atom. The C(3)-C(4) bond length is 1.42 Å. The C(3)-H(3) bond length is 0.93 Å. In the second C site, C(4) is bonded in a distorted trigonal planar geometry to one C(3), one C(5), and one H(4) atom. The C(4)-C(5) bond length is 1.35 Å. The C(4)-H(4) bond length is 0.93 Å. In the third C site, C(5) is bonded in a distorted single-bond geometry to one C(4) and one N(1) atom. The C(5)-N(1) bond length is 1.34 Å. In the fourth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one N(2) and one N(4) atom. The C(6)-N(2) bond length is 1.32 Å. The C(6)-N(4) bond length is 1.35 Å. In the fifth C site, C(7) is bonded in a distorted trigonal planar geometry to one C(8), one N(3), and one N(4) atom. The C(7)-C(8) bond length is 1.46 Å. The C(7)-N(3) bond length is 1.34 Å. The C(7)-N(4) bond length is 1.33 Å. In the sixth C site, C(8) is bonded in a 3-coordinate geometry to one C(7), one N(5), and one N(7) atom. The C(8)-N(5) bond length is 1.31 Å. The C(8)-N(7) bond length is 1.34 Å. In the seventh C site, C(9) is bonded in a trigonal planar geometry to one N(6), one N(7), and one H(5) atom. The C(9)-N(6) bond length is 1.33 Å. The C(9)-N(7) bond length is 1.34 Å. The C(9)-H(5) bond length is 0.93 Å. In the eighth C site, C(1) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(1) atom. The C(1)-N(1) bond length is 1.35 Å. The C(1)-H(1) bond length is 0.93 Å. There are seven 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(5) atom. In the second N site, N(2) is bonded in a distorted bent 120 degrees geometry to one Cu(1), one C(6), and one N(3) atom. The N(2)-N(3) bond length is 1.34 Å. In the third N site, N(3) is bonded in a 3-coordinate geometry to one Cu(2), one C(7), and one N(2) atom. In the fourth N site, N(4) is bonded in a water-like geometry to one C(6) and one C(7) atom. In the fifth N site, N(5) is bonded in a 3-coordinate geometry to one Cu(2), one C(8), and one N(6) atom. The N(5)-N(6) bond length is 1.37 Å. In the sixth N site, N(6) is bonded in a 3-coordinate geometry to one Cu(2), one C(9), and one N(5) atom. In the seventh N site, N(7) is bonded in a trigonal planar geometry to one Cu(1), one C(8), and one C(9) atom. There are four 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(3) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(4) is bonded in a single-bond geometry to one C(4) atom. In the fourth H site, H(5) is bonded in a single-bond geometry to one C(9) atom. S(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. The S(1)-O(1) bond length is 1.47 Å. The S(1)-O(2) bond length is 1.44 Å. The S(1)-O(3) bond length is 1.43 Å. The S(1)-O(4) bond length is 1.49 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Cu(1) and one S(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one S(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one S(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Cu(2) and one S(1) atom. Linkers: 5 C1=NN=C(C2=NN=C(c3ccccn3)[N]2)[N]1 ,1 C1=NN=C(C2=N[N]C(c3ccccn3)=N2)[N]1. Metal clusters: 2 [O]S1([O])O[Cu]N=N[Cu@]2(=NN=[Cu@]3(N=N[Cu]OS([O])([O])O3)N=N2)O1 ,1 [O]S1([O])O[Cu]N=N[Cu@@]2(=NN=[Cu@@]3(N=N[Cu]OS([O])([O])O3)N=N2)O1. The MOF has largest included sphere 13.88 A, density 0.97 g/cm3, surface area 3472.61 m2/g, accessible volume 0.54 cm3/g