CuC6N2H8Cl crystallizes in the monoclinic C2/c space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent N(1) and two equivalent Cl(1) atoms to form distorted corner-sharing CuN2Cl2 trigonal pyramids. Both Cu(1)-N(1) bond lengths are 1.94 Å. Both Cu(1)-Cl(1) bond lengths are 2.40 Å. In the second Cu site, Cu(2) is bonded to two equivalent N(2) and two equivalent Cl(1) atoms to form distorted corner-sharing CuN2Cl2 trigonal pyramids. Both Cu(2)-N(2) bond lengths are 1.94 Å. Both Cu(2)-Cl(1) bond lengths are 2.41 Å. There are six inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(3), one C(5), and one N(1) atom. The C(1)-C(3) bond length is 1.39 Å. The C(1)-C(5) bond length is 1.49 Å. The C(1)-N(1) bond length is 1.36 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(4), one C(6), and one N(2) atom. The C(2)-C(4) bond length is 1.39 Å. The C(2)-C(6) bond length is 1.49 Å. The C(2)-N(2) bond length is 1.36 Å. In the third C site, C(3) is bonded in a distorted trigonal planar geometry to one C(1), one N(1), and one H(1) atom. The C(3)-N(1) bond length is 1.35 Å. The C(3)-H(1) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(2), one N(2), and one H(2) atom. The C(4)-N(2) bond length is 1.35 Å. The C(4)-H(2) bond length is 1.09 Å. In the fifth C site, C(6) is bonded in a distorted trigonal non-coplanar geometry to one C(2); one H(3,4); one H(5,6); and one H(7,8) atom. The C(6)-H(3,4) bond length is 1.10 Å. The C(6)-H(5,6) bond length is 1.10 Å. The C(6)-H(7,8) bond length is 1.10 Å. In the sixth C site, C(5) is bonded in a distorted trigonal non-coplanar geometry to one C(1); one H(3,4); one H(5,6); and one H(7,8) atom. The C(5)-H(3,4) bond length is 1.10 Å. The C(5)-H(5,6) bond length is 1.10 Å. The C(5)-H(7,8) bond length is 1.10 Å. There are two inequivalent N sites. In the first N site, N(2) is bonded in a trigonal planar geometry to one Cu(2), one C(2), and one C(4) atom. In the second N site, N(1) is bonded in a trigonal planar geometry to one Cu(1), one C(1), and one C(3) atom. There are five inequivalent H sites. In the first H site, H(7,8) is bonded in a single-bond geometry to one C(5) atom. In the second H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(2) is bonded in a single-bond geometry to one C(4) atom. In the fourth H site, H(3,4) is bonded in a single-bond geometry to one C(5) atom. In the fifth H site, H(5,6) is bonded in a single-bond geometry to one C(5) atom. Cl(1) is bonded in a bent 150 degrees geometry to one Cu(1) and one Cu(2) atom. Linkers: 4 Cc1cnc(C)cn1 ,2 [C]c1cnc(C)cn1. Metal clusters: 4 [Cu]. The MOF has largest included sphere 2.42 A, density 1.85 g/cm3, surface area 4184.98 m2/g, accessible volume 0.13 cm3/g