Cu3C8N7H4 crystallizes in the triclinic P-1 space group. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted trigonal pyramidal geometry to one C(7), one C(8), one N(1), and one N(2) atom. The Cu(1)-C(7) bond length is 1.89 Å. The Cu(1)-C(8) bond length is 1.90 Å. The Cu(1)-N(1) bond length is 2.00 Å. The Cu(1)-N(2) bond length is 2.39 Å. In the second Cu site, Cu(2) is bonded in a 4-coordinate geometry to one N(4), one N(7), and two equivalent N(6) atoms. The Cu(2)-N(4) bond length is 2.01 Å. The Cu(2)-N(7) bond length is 1.89 Å. There is one shorter (1.89 Å) and one longer (2.48 Å) Cu(2)-N(6) bond length. In the third Cu site, Cu(3) is bonded in a 3-coordinate geometry to one C(8), one N(3), and one N(5) atom. The Cu(3)-C(8) bond length is 2.25 Å. The Cu(3)-N(3) bond length is 1.94 Å. The Cu(3)-N(5) bond length is 1.93 Å. There are eight 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 N(4) atom. The C(1)-C(2) bond length is 1.46 Å. The C(1)-N(1) bond length is 1.36 Å. The C(1)-N(4) bond length is 1.35 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(6) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-C(6) bond length is 1.40 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2) and one H(1) atom. The C(3)-H(1) 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) and one H(2) atom. The C(4)-C(5) bond length is 1.39 Å. The C(4)-H(2) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(4), one N(5), and one H(3) atom. The C(5)-N(5) bond length is 1.36 Å. The C(5)-H(3) bond length is 1.09 Å. In the sixth C site, C(6) is bonded in a distorted trigonal planar geometry to one C(2), one N(5), and one H(4) atom. The C(6)-N(5) bond length is 1.35 Å. The C(6)-H(4) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a linear geometry to one Cu(1) and one N(6) atom. The C(7)-N(6) bond length is 1.18 Å. In the eighth C site, C(8) is bonded in a 3-coordinate geometry to one Cu(1), one Cu(3), and one N(7) atom. The C(8)-N(7) bond length is 1.18 Å. There are seven inequivalent N sites. In the first N site, N(1) is bonded in a 3-coordinate geometry to one Cu(1), one C(1), and one N(2) atom. The N(1)-N(2) bond length is 1.33 Å. In the second N site, N(2) is bonded in a distorted trigonal non-coplanar geometry to one Cu(1), one N(1), and one N(3) atom. The N(2)-N(3) bond length is 1.32 Å. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one Cu(3), one N(2), and one N(4) atom. The N(3)-N(4) bond length is 1.35 Å. In the fourth N site, N(4) is bonded in a 3-coordinate geometry to one Cu(2), one C(1), and one N(3) atom. In the fifth N site, N(5) is bonded in a trigonal planar geometry to one Cu(3), one C(5), and one C(6) atom. In the sixth N site, N(6) is bonded in a distorted T-shaped geometry to two equivalent Cu(2) and one C(7) atom. In the seventh N site, N(7) is bonded in a linear geometry to one Cu(2) and one C(8) atom. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(4) 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(6) atom. Linkers: 2 c1cncc(C2=NN=N[N]2)c1. Metal clusters: 6 [Cu]. The MOF has largest included sphere 2.20 A, density 2.55 g/cm3, surface area 2846.79 m2/g, accessible volume 0.07 cm3/g