(CH)8Cd3C8N9H14O8Cl crystallizes in the monoclinic P2_1/c space group. The structure consists of four p-xylene molecules inside a Cd3C8N9H14O8Cl framework. In the Cd3C8N9H14O8Cl framework, there are three inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 7-coordinate geometry to one N(1), one N(4), one O(1), one O(2), one O(3), one O(4), and one O(5) atom. The Cd(1)-N(1) bond length is 2.28 Å. The Cd(1)-N(4) bond length is 2.31 Å. The Cd(1)-O(1) bond length is 2.30 Å. The Cd(1)-O(2) bond length is 2.65 Å. The Cd(1)-O(3) bond length is 2.35 Å. The Cd(1)-O(4) bond length is 2.81 Å. The Cd(1)-O(5) bond length is 2.42 Å. In the second Cd site, Cd(2) is bonded in an octahedral geometry to one N(3), one N(5), one N(7), one N(8), one O(6), and one O(7) atom. The Cd(2)-N(3) bond length is 2.33 Å. The Cd(2)-N(5) bond length is 2.31 Å. The Cd(2)-N(7) bond length is 2.30 Å. The Cd(2)-N(8) bond length is 2.30 Å. The Cd(2)-O(6) bond length is 2.47 Å. The Cd(2)-O(7) bond length is 2.61 Å. In the third Cd site, Cd(3) is bonded to one N(2), one N(6), one N(9), one O(8), and two equivalent Cl(1) atoms to form edge-sharing CdN3Cl2O octahedra. The Cd(3)-N(2) bond length is 2.35 Å. The Cd(3)-N(6) bond length is 2.35 Å. The Cd(3)-N(9) bond length is 2.36 Å. The Cd(3)-O(8) bond length is 2.48 Å. There is one shorter (2.59 Å) and one longer (2.66 Å) Cd(3)-Cl(1) bond length. There are eight inequivalent C sites. In the first C site, C(10) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. The C(10)-O(3) bond length is 1.29 Å. The C(10)-O(4) bond length is 1.26 Å. In the second C site, C(11) is bonded in a trigonal planar geometry to one N(1), one N(3), and one H(9) atom. The C(11)-N(1) bond length is 1.35 Å. The C(11)-N(3) bond length is 1.33 Å. The C(11)-H(9) bond length is 1.08 Å. In the third C site, C(12) is bonded in a trigonal planar geometry to one N(1), one N(2), and one H(10) atom. The C(12)-N(1) bond length is 1.35 Å. The C(12)-N(2) bond length is 1.33 Å. The C(12)-H(10) bond length is 1.08 Å. In the fourth C site, C(13) is bonded in a trigonal planar geometry to one N(4), one N(5), and one H(11) atom. The C(13)-N(4) bond length is 1.35 Å. The C(13)-N(5) bond length is 1.34 Å. The C(13)-H(11) bond length is 1.09 Å. In the fifth C site, C(14) is bonded in a trigonal planar geometry to one N(4), one N(6), and one H(12) atom. The C(14)-N(4) bond length is 1.35 Å. The C(14)-N(6) bond length is 1.33 Å. The C(14)-H(12) bond length is 1.09 Å. In the sixth C site, C(15) is bonded in a trigonal planar geometry to one N(7), one N(8), and one H(13) atom. The C(15)-N(7) bond length is 1.35 Å. The C(15)-N(8) bond length is 1.33 Å. The C(15)-H(13) bond length is 1.08 Å. In the seventh C site, C(16) is bonded in a trigonal planar geometry to one N(7), one N(9), and one H(14) atom. The C(16)-N(7) bond length is 1.36 Å. The C(16)-N(9) bond length is 1.33 Å. The C(16)-H(14) bond length is 1.09 Å. In the eighth C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. The C(1)-O(1) bond length is 1.29 Å. The C(1)-O(2) bond length is 1.26 Å. There are nine inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Cd(1), one C(11), and one C(12) atom. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one Cd(3), one C(12), and one N(3) atom. The N(2)-N(3) bond length is 1.37 Å. In the third N site, N(3) is bonded in a 3-coordinate geometry to one Cd(2), one C(11), and one N(2) atom. In the fourth N site, N(4) is bonded in a distorted trigonal planar geometry to one Cd(1), one C(13), and one C(14) atom. In the fifth N site, N(5) is bonded in a 3-coordinate geometry to one Cd(2), one C(13), and one N(6) atom. The N(5)-N(6) bond length is 1.37 Å. In the sixth N site, N(6) is bonded in a distorted trigonal planar geometry to one Cd(3), one C(14), and one N(5) atom. In the seventh N site, N(7) is bonded in a distorted trigonal planar geometry to one Cd(2), one C(15), and one C(16) atom. In the eighth N site, N(8) is bonded in a distorted trigonal planar geometry to one Cd(2), one C(15), and one N(9) atom. The N(8)-N(9) bond length is 1.37 Å. In the ninth N site, N(9) is bonded in a distorted trigonal planar geometry to one Cd(3), one C(16), and one N(8) atom. There are fourteen inequivalent H sites. In the first H site, H(9) is bonded in a single-bond geometry to one C(11) atom. In the second H site, H(10) is bonded in a single-bond geometry to one C(12) atom. In the third H site, H(11) is bonded in a single-bond geometry to one C(13) atom. In the fourth H site, H(12) is bonded in a single-bond geometry to one C(14) atom. In the fifth H site, H(13) is bonded in a single-bond geometry to one C(15) atom. In the sixth H site, H(14) is bonded in a single-bond geometry to one C(16) atom. In the seventh H site, H(15) is bonded in a single-bond geometry to one O(8) atom. The H(15)-O(8) bond length is 0.97 Å. In the eighth H site, H(16) is bonded in a single-bond geometry to one O(8) atom. The H(16)-O(8) bond length is 1.00 Å. In the ninth H site, H(17) is bonded in a single-bond geometry to one O(7) atom. The H(17)-O(7) bond length is 0.97 Å. In the tenth H site, H(18) is bonded in a distorted linear geometry to one O(4) and one O(7) atom. The H(18)-O(4) bond length is 1.59 Å. The H(18)-O(7) bond length is 1.02 Å. In the eleventh H site, H(19) is bonded in a single-bond geometry to one O(6) atom. The H(19)-O(6) bond length is 0.98 Å. In the twelfth H site, H(20) is bonded in a distorted linear geometry to one O(3) and one O(6) atom. The H(20)-O(3) bond length is 1.64 Å. The H(20)-O(6) bond length is 1.01 Å. In the thirteenth H site, H(21) is bonded in a distorted single-bond geometry to one O(1) and one O(5) atom. The H(21)-O(1) bond length is 1.65 Å. The H(21)-O(5) bond length is 1.01 Å. In the fourteenth H site, H(22) is bonded in a single-bond geometry to one O(5) atom. The H(22)-O(5) bond length is 0.97 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Cd(1), one C(1), and one H(21) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Cd(1) and one C(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Cd(1), one C(10), and one H(20) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Cd(1), one C(10), and one H(18) atom. In the fifth O site, O(5) is bonded in a distorted water-like geometry to one Cd(1), one H(21), and one H(22) atom. In the sixth O site, O(6) is bonded in a water-like geometry to one Cd(2), one H(19), and one H(20) atom. In the seventh O site, O(7) is bonded in a water-like geometry to one Cd(2), one H(17), and one H(18) atom. In the eighth O site, O(8) is bonded in a distorted water-like geometry to one Cd(3), one H(15), and one H(16) atom. Cl(1) is bonded in an L-shaped geometry to two equivalent Cd(3) atoms. Linkers: 2 C1=NN=C[N]1 ,9 [N]1=CN=NC=1 ,4 [O]C(=O)Cc1ccc(CC([O])=O)cc1 ,1 C1=NC=N[N]1. Metal clusters: 4 O.O=[C]O[Cd]O[C]=O ,2 Cl[Cd]12[N][N][Cd](N=N1)N=N2.Cl[Cd]12[N][N][Cd](N=N1)N=N2.O.O.O.O.O.O. The MOF has largest included sphere 3.99 A, density 1.98 g/cm3, surface area 3687.46 m2/g, accessible volume 0.10 cm3/g