Cu2C3NH3Cl2 crystallizes in the orthorhombic Pca2_1 space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one C(1), one C(2), one Cl(1), and two equivalent Cl(2) atoms to form distorted CuC2Cl3 trigonal bipyramids that share corners with two equivalent Cu(1)C2Cl3 trigonal bipyramids and corners with four equivalent Cu(2)NCl3 trigonal pyramids. The Cu(1)-C(1) bond length is 2.03 Å. The Cu(1)-C(2) bond length is 2.04 Å. The Cu(1)-Cl(1) bond length is 2.27 Å. There is one shorter (2.27 Å) and one longer (2.65 Å) Cu(1)-Cl(2) bond length. In the second Cu site, Cu(2) is bonded to one N(1), one Cl(2), and two equivalent Cl(1) atoms to form distorted CuNCl3 trigonal pyramids that share corners with four equivalent Cu(1)C2Cl3 trigonal bipyramids and corners with two equivalent Cu(2)NCl3 trigonal pyramids. The Cu(2)-N(1) bond length is 1.85 Å. The Cu(2)-Cl(2) bond length is 2.28 Å. There is one shorter (2.37 Å) and one longer (2.41 Å) Cu(2)-Cl(1) bond length. There are three inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one Cu(1), one H(1), and one H(2) atom. The C(1)-H(1) bond length is 1.09 Å. The C(1)-H(2) bond length is 1.09 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one Cu(1), one C(3), and one H(3) atom. The C(2)-C(3) bond length is 1.41 Å. The C(2)-H(3) bond length is 1.10 Å. In the third C site, C(3) is bonded in a distorted linear geometry to one C(2) and one N(1) atom. The C(3)-N(1) bond length is 1.17 Å. N(1) is bonded in a bent 150 degrees geometry to one Cu(2) and one C(3) atom. There are three 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(1) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(2) atom. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a trigonal planar geometry to one Cu(1) and two equivalent Cu(2) atoms. In the second Cl site, Cl(2) is bonded in a trigonal non-coplanar geometry to one Cu(2) and two equivalent Cu(1) atoms. Linkers: 4 C=CC#N. Metal clusters: 8 [Cu]. The MOF has largest included sphere 1.69 A, density 2.82 g/cm3, surface area 2958.20 m2/g, accessible volume 0.06 cm3/g