CuC4H2(NS)2CH crystallizes in the triclinic P1 space group. The structure consists of two acetylene molecules inside a CuC4H2(NS)2 framework. In the CuC4H2(NS)2 framework, there are four inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a square co-planar geometry to one S(5), one S(6), one S(7), and one S(8) atom. The Cu(1)-S(5) bond length is 2.21 Å. The Cu(1)-S(6) bond length is 2.23 Å. The Cu(1)-S(7) bond length is 2.21 Å. The Cu(1)-S(8) bond length is 2.22 Å. In the second Cu site, Cu(2) is bonded in a square co-planar geometry to one S(1), one S(2), one S(3), and one S(4) atom. The Cu(2)-S(1) bond length is 2.22 Å. The Cu(2)-S(2) bond length is 2.21 Å. The Cu(2)-S(3) bond length is 2.23 Å. The Cu(2)-S(4) bond length is 2.21 Å. In the third Cu site, Cu(3) is bonded in a distorted rectangular see-saw-like geometry to one N(1), one N(3), one N(5), one N(7), one S(1), and one S(3) atom. The Cu(3)-N(1) bond length is 2.07 Å. The Cu(3)-N(3) bond length is 2.07 Å. The Cu(3)-N(5) bond length is 2.20 Å. The Cu(3)-N(7) bond length is 2.15 Å. The Cu(3)-S(1) bond length is 2.75 Å. The Cu(3)-S(3) bond length is 2.68 Å. In the fourth Cu site, Cu(4) is bonded in a distorted rectangular see-saw-like geometry to one N(2), one N(4), one N(6), one N(8), one S(6), and one S(8) atom. The Cu(4)-N(2) bond length is 2.15 Å. The Cu(4)-N(4) bond length is 2.20 Å. The Cu(4)-N(6) bond length is 2.07 Å. The Cu(4)-N(8) bond length is 2.07 Å. The Cu(4)-S(6) bond length is 2.68 Å. The Cu(4)-S(8) bond length is 2.75 Å. There are sixteen inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(3), one N(3), and one H(1) atom. The C(1)-C(3) bond length is 1.38 Å. The C(1)-N(3) bond length is 1.35 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(4), one N(4), and one H(2) atom. The C(2)-C(4) bond length is 1.39 Å. The C(2)-N(4) bond length is 1.35 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(1), one N(1), and one H(3) atom. The C(3)-N(1) bond length is 1.35 Å. The C(3)-H(3) 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(4) atom. The C(4)-N(2) bond length is 1.35 Å. The C(4)-H(4) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(7), one N(7), and one H(5) atom. The C(5)-C(7) bond length is 1.39 Å. The C(5)-N(7) bond length is 1.35 Å. The C(5)-H(5) bond length is 1.09 Å. In the sixth C site, C(6) is bonded in a distorted trigonal planar geometry to one C(8), one N(8), and one H(6) atom. The C(6)-C(8) bond length is 1.38 Å. The C(6)-N(8) bond length is 1.35 Å. The C(6)-H(6) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a distorted trigonal planar geometry to one C(5), one N(5), and one H(7) atom. The C(7)-N(5) bond length is 1.35 Å. The C(7)-H(7) bond length is 1.09 Å. In the eighth C site, C(8) is bonded in a distorted trigonal planar geometry to one C(6), one N(6), and one H(8) atom. The C(8)-N(6) bond length is 1.35 Å. The C(8)-H(8) bond length is 1.09 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(11), one N(7), and one S(1) atom. The C(9)-C(11) bond length is 1.42 Å. The C(9)-N(7) bond length is 1.34 Å. The C(9)-S(1) bond length is 1.73 Å. In the tenth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(12), one N(8), and one S(2) atom. The C(10)-C(12) bond length is 1.43 Å. The C(10)-N(8) bond length is 1.34 Å. The C(10)-S(2) bond length is 1.73 Å. In the eleventh C site, C(11) is bonded in a distorted trigonal planar geometry to one C(9), one N(5), and one S(3) atom. The C(11)-N(5) bond length is 1.34 Å. The C(11)-S(3) bond length is 1.73 Å. In the twelfth C site, C(12) is bonded in a distorted trigonal planar geometry to one C(10), one N(6), and one S(4) atom. The C(12)-N(6) bond length is 1.34 Å. The C(12)-S(4) bond length is 1.72 Å. In the thirteenth C site, C(13) is bonded in a distorted trigonal planar geometry to one C(15), one N(1), and one S(7) atom. The C(13)-C(15) bond length is 1.43 Å. The C(13)-N(1) bond length is 1.34 Å. The C(13)-S(7) bond length is 1.73 Å. In the fourteenth C site, C(14) is bonded in a distorted trigonal planar geometry to one C(16), one N(2), and one S(8) atom. The C(14)-C(16) bond length is 1.42 Å. The C(14)-N(2) bond length is 1.34 Å. The C(14)-S(8) bond length is 1.73 Å. In the fifteenth C site, C(15) is bonded in a distorted trigonal planar geometry to one C(13), one N(3), and one S(5) atom. The C(15)-N(3) bond length is 1.34 Å. The C(15)-S(5) bond length is 1.72 Å. In the sixteenth C site, C(16) is bonded in a distorted trigonal planar geometry to one C(14), one N(4), and one S(6) atom. The C(16)-N(4) bond length is 1.34 Å. The C(16)-S(6) bond length is 1.73 Å. There are eight inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Cu(3), one C(13), and one C(3) atom. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one Cu(4), one C(14), and one C(4) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one Cu(3), one C(1), and one C(15) atom. In the fourth N site, N(4) is bonded in a distorted trigonal planar geometry to one Cu(4), one C(16), and one C(2) atom. In the fifth N site, N(5) is bonded in a distorted trigonal planar geometry to one Cu(3), one C(11), and one C(7) atom. In the sixth N site, N(6) is bonded in a trigonal planar geometry to one Cu(4), one C(12), and one C(8) atom. In the seventh N site, N(7) is bonded in a distorted trigonal planar geometry to one Cu(3), one C(5), and one C(9) atom. In the eighth N site, N(8) is bonded in a trigonal planar geometry to one Cu(4), one C(10), and one C(6) atom. There are eight 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 C(4) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(5) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(6) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(7) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(8) atom. There are eight inequivalent S sites. In the first S site, S(1) is bonded in a 3-coordinate geometry to one Cu(2), one Cu(3), and one C(9) atom. In the second S site, S(2) is bonded in a water-like geometry to one Cu(2) and one C(10) atom. In the third S site, S(3) is bonded in a 3-coordinate geometry to one Cu(2), one Cu(3), and one C(11) atom. In the fourth S site, S(4) is bonded in a water-like geometry to one Cu(2) and one C(12) atom. In the fifth S site, S(5) is bonded in a water-like geometry to one Cu(1) and one C(15) atom. In the sixth S site, S(6) is bonded in a 3-coordinate geometry to one Cu(1), one Cu(4), and one C(16) atom. In the seventh S site, S(7) is bonded in a water-like geometry to one Cu(1) and one C(13) atom. In the eighth S site, S(8) is bonded in a 3-coordinate geometry to one Cu(1), one Cu(4), and one C(14) atom. Linkers: 3 S=C1N=CC=NC1=S. Metal clusters: 4 [Cu]. The MOF has largest included sphere 2.89 A, density 2.02 g/cm3, surface area 3158.43 m2/g, accessible volume 0.09 cm3/g