ZnH6(CN2)4 crystallizes in the monoclinic Cc space group. Zn(1) is bonded in a tetrahedral geometry to one N(1), one N(2), one N(3), and one N(4) atom. The Zn(1)-N(1) bond length is 2.00 Å. The Zn(1)-N(2) bond length is 1.99 Å. The Zn(1)-N(3) bond length is 2.03 Å. The Zn(1)-N(4) bond length is 2.04 Å. There are four inequivalent C sites. In the first C site, C(1) is bonded in a trigonal non-coplanar geometry to one C(3) and three equivalent H(1,2,3) atoms. The C(1)-C(3) bond length is 1.47 Å. All C(1)-H(1,2,3) bond lengths are 0.96 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(4), one N(1), and one N(2) atom. The C(2)-C(4) bond length is 1.50 Å. The C(2)-N(1) bond length is 1.32 Å. The C(2)-N(2) bond length is 1.33 Å. In the third C site, C(3) is bonded in a distorted trigonal planar geometry to one C(1), one N(3), and one N(4) atom. The C(3)-N(3) bond length is 1.32 Å. The C(3)-N(4) bond length is 1.34 Å. In the fourth C site, C(4) is bonded in a trigonal non-coplanar geometry to one C(2) and three equivalent H(4,5,6) atoms. All C(4)-H(4,5,6) bond lengths are 0.96 Å. There are eight inequivalent N sites. In the first N site, N(1) is bonded in a 3-coordinate geometry to one Zn(1), one C(2), and one N(6) atom. The N(1)-N(6) bond length is 1.37 Å. In the second N site, N(2) is bonded in a 3-coordinate geometry to one Zn(1), one C(2), and one N(8) atom. The N(2)-N(8) bond length is 1.36 Å. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one Zn(1), one C(3), and one N(7) atom. The N(3)-N(7) bond length is 1.35 Å. In the fourth N site, N(4) is bonded in a 3-coordinate geometry to one Zn(1), one C(3), and one N(5) atom. The N(4)-N(5) bond length is 1.36 Å. In the fifth N site, N(5) is bonded in a water-like geometry to one N(4) and one N(7) atom. The N(5)-N(7) bond length is 1.29 Å. In the sixth N site, N(6) is bonded in a water-like geometry to one N(1) and one N(8) atom. The N(6)-N(8) bond length is 1.28 Å. In the seventh N site, N(7) is bonded in a water-like geometry to one N(3) and one N(5) atom. In the eighth N site, N(8) is bonded in a water-like geometry to one N(2) and one N(6) atom. There are two inequivalent H sites. In the first H site, H(1,2,3) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(4,5,6) is bonded in a single-bond geometry to one C(4) atom. Linkers: 8 CC1=NN=N[N]1. Metal clusters: 4 [Zn]. The MOF has largest included sphere 5.24 A, density 1.11 g/cm3, surface area 4284.42 m2/g, accessible volume 0.49 cm3/g