ZnH9(CN2)4 crystallizes in the orthorhombic Ama2 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 2.01 Å. The Zn(1)-N(2) bond length is 1.99 Å. The Zn(1)-N(3) bond length is 2.00 Å. The Zn(1)-N(4) bond length is 2.00 Å. There are six inequivalent C sites. In the first C site, C(1) is bonded in a trigonal non-coplanar geometry to one C(2) and three equivalent H(1,2,3) atoms. The C(1)-C(2) bond length is 1.49 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(1), one N(3), and one N(4) atom. The C(2)-N(3) bond length is 1.32 Å. The C(2)-N(4) bond length is 1.31 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(4) and two equivalent N(1) atoms. The C(3)-C(4) bond length is 1.46 Å. Both C(3)-N(1) bond lengths are 1.33 Å. In the fourth C site, C(4) is bonded in a 6-coordinate geometry to one C(3), two equivalent H(7), two equivalent H(8), and two equivalent H(9) atoms. Both C(4)-H(7) bond lengths are 0.96 Å. Both C(4)-H(8) bond lengths are 0.96 Å. Both C(4)-H(9) bond lengths are 0.96 Å. In the fifth C site, C(5) is bonded in a 6-coordinate geometry to one C(6), two equivalent H(4), two equivalent H(5), and two equivalent H(6) atoms. The C(5)-C(6) bond length is 1.47 Å. Both C(5)-H(4) bond lengths are 0.96 Å. Both C(5)-H(5) bond lengths are 0.96 Å. Both C(5)-H(6) bond lengths are 0.96 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(5) and two equivalent N(2) atoms. Both C(6)-N(2) bond lengths are 1.31 Å. There are eight inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Zn(1), one C(3), and one N(5) atom. The N(1)-N(5) bond length is 1.36 Å. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one Zn(1), one C(6), 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 3-coordinate geometry to one Zn(1), one C(2), and one N(7) atom. The N(3)-N(7) bond length is 1.36 Å. In the fourth N site, N(4) is bonded in a distorted trigonal planar geometry to one Zn(1), one C(2), and one N(6) atom. The N(4)-N(6) bond length is 1.38 Å. In the fifth N site, N(5) is bonded in a water-like geometry to one N(1) and one N(5) atom. The N(5)-N(5) bond length is 1.30 Å. In the sixth N site, N(6) is bonded in a water-like geometry to one N(4) and one N(7) atom. The N(6)-N(7) 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(6) atom. In the eighth N site, N(8) is bonded in a water-like geometry to one N(2) and one N(8) atom. The N(8)-N(8) bond length is 1.29 Å. There are seven 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) is bonded in a single-bond geometry to one C(5) atom. In the third H site, H(5) is bonded in a single-bond geometry to one C(5) atom. In the fourth H site, H(6) is bonded in a single-bond geometry to one C(5) atom. In the fifth H site, H(7) is bonded in a single-bond geometry to one C(4) atom. In the sixth H site, H(8) is bonded in a single-bond geometry to one C(4) atom. In the seventh H site, H(9) is bonded in a single-bond geometry to one C(4) atom. Linkers: 2 C.[C]1=N[N]N=N1.[H].[H] ,1 CC1=NN=N[N]1 ,1 C.C.C.[CH2].[CH2].[CH2].[CH2].[CH2].[CH2].[CH2].[CH3].[CH3].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C]#N.[C]#N.[C]#N.[C]#N.[C]#N.[C]#N.[C]#N.[C]#N.[C]#N.[C]#N.[C]#N.[C]#N.[C]=N[Zn].[C][N].[C][N].[C][N].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N][C][N].[N][C][N].[N][C][N].[N][C][N][Zn]([N][N])[N][N][N].[N][N].[N][N].[N][N].[N][N].[N][N].[N][N].[N][N].[N][N].[N][N].[N][N].[N][N].[N][N].[N][N].[N][N].[N][N].[N][N].[N][N].[N][N].[N][N].[N][N].[N][N][N].[N][N][N].[N][Zn][N].[N][Zn][N].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn].[Zn]. Metal clusters: 4 [Zn]. The MOF has largest included sphere 5.62 A, density 1.14 g/cm3, surface area 4370.85 m2/g, accessible volume 0.54 cm3/g