Zn2C6N9H6Cl crystallizes in the orthorhombic Pnma space group. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in an octahedral geometry to one N(3), one N(4), two equivalent N(1), and two equivalent N(5) atoms. The Zn(1)-N(3) bond length is 2.25 Å. The Zn(1)-N(4) bond length is 2.13 Å. Both Zn(1)-N(1) bond lengths are 2.19 Å. Both Zn(1)-N(5) bond lengths are 2.14 Å. In the second Zn site, Zn(2) is bonded in a tetrahedral geometry to one N(6), two equivalent N(2), and one Cl(1) atom. The Zn(2)-N(6) bond length is 2.00 Å. Both Zn(2)-N(2) bond lengths are 2.01 Å. The Zn(2)-Cl(1) bond length is 2.28 Å. There are four inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one N(3), one N(6), and one H(1) atom. The C(1)-N(3) bond length is 1.33 Å. The C(1)-N(6) bond length is 1.36 Å. The C(1)-H(1) bond length is 1.09 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one N(2), one N(5), and one H(2) atom. The C(2)-N(2) bond length is 1.36 Å. The C(2)-N(5) bond length is 1.33 Å. The C(2)-H(2) bond length is 1.09 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one N(4), one N(6), and one H(3) atom. The C(3)-N(4) bond length is 1.33 Å. The C(3)-N(6) bond length is 1.36 Å. The C(3)-H(3) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one N(1), one N(2), and one H(4) atom. The C(4)-N(1) bond length is 1.33 Å. The C(4)-N(2) bond length is 1.36 Å. The C(4)-H(4) bond length is 1.08 Å. There are six inequivalent N sites. In the first N site, N(2) is bonded in a trigonal planar geometry to one Zn(2), one C(2), and one C(4) atom. In the second N site, N(3) is bonded in a 3-coordinate geometry to one Zn(1), one C(1), and one N(4) atom. The N(3)-N(4) bond length is 1.37 Å. In the third N site, N(4) is bonded in a 3-coordinate geometry to one Zn(1), one C(3), and one N(3) atom. In the fourth N site, N(5) is bonded in a 3-coordinate geometry to one Zn(1), one C(2), and one N(1) atom. The N(5)-N(1) bond length is 1.37 Å. In the fifth N site, N(1) is bonded in a distorted trigonal planar geometry to one Zn(1), one C(4), and one N(5) atom. In the sixth N site, N(6) is bonded in a trigonal planar geometry to one Zn(2), one C(1), and one C(3) atom. There are four 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. Cl(1) is bonded in a single-bond geometry to one Zn(2) atom. Linkers: 4 Cl[Zn](n1cnnc1)(n1cnnc1)n1cnnc1. Metal clusters: 4 [Zn]. The MOF has largest included sphere 2.78 A, density 1.88 g/cm3, surface area 3423.22 m2/g, accessible volume 0.16 cm3/g