CdC15H10(NO2)2 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 5-coordinate geometry to one N(4), one O(1), one O(2), one O(5), and one O(8) atom. The Cd(1)-N(4) bond length is 2.24 Å. The Cd(1)-O(1) bond length is 2.74 Å. The Cd(1)-O(2) bond length is 2.46 Å. The Cd(1)-O(5) bond length is 2.26 Å. The Cd(1)-O(8) bond length is 2.30 Å. In the second Cd site, Cd(2) is bonded in a 6-coordinate geometry to one N(2), one O(1), one O(3), one O(4), one O(6), and one O(7) atom. The Cd(2)-N(2) bond length is 2.22 Å. The Cd(2)-O(1) bond length is 2.25 Å. The Cd(2)-O(3) bond length is 2.50 Å. The Cd(2)-O(4) bond length is 2.27 Å. The Cd(2)-O(6) bond length is 2.24 Å. The Cd(2)-O(7) bond length is 2.47 Å. There are thirty inequivalent C sites. In the first C site, C(23) is bonded in a trigonal planar geometry to one N(1), one N(2), and one H(7) atom. The C(23)-N(1) bond length is 1.34 Å. The C(23)-N(2) bond length is 1.31 Å. The C(23)-H(7) bond length is 0.93 Å. In the second C site, C(24) is bonded in a 3-coordinate geometry to one C(14); one N(3); and two equivalent H(16,20) atoms. The C(24)-C(14) bond length is 1.50 Å. The C(24)-N(3) bond length is 1.47 Å. Both C(24)-H(16,20) bond lengths are 0.97 Å. In the third C site, C(25) is bonded in a distorted single-bond geometry to one C(22) and one H(5) atom. The C(25)-C(22) bond length is 1.36 Å. The C(25)-H(5) bond length is 0.93 Å. In the fourth C site, C(26) is bonded in a 3-coordinate geometry to one C(17), one N(3), and one H(1) atom. The C(26)-C(17) bond length is 1.34 Å. The C(26)-N(3) bond length is 1.35 Å. The C(26)-H(1) bond length is 0.93 Å. In the fifth C site, C(27) is bonded in a trigonal planar geometry to one C(11), one C(2), and one C(30) atom. The C(27)-C(11) bond length is 1.39 Å. The C(27)-C(2) bond length is 1.50 Å. The C(27)-C(30) bond length is 1.40 Å. In the sixth C site, C(28) is bonded in a 2-coordinate geometry to one C(29), one N(2), and one H(10) atom. The C(28)-C(29) bond length is 1.35 Å. The C(28)-N(2) bond length is 1.38 Å. The C(28)-H(10) bond length is 0.93 Å. In the seventh C site, C(29) is bonded in a 3-coordinate geometry to one C(28), one N(1), and one H(11) atom. The C(29)-N(1) bond length is 1.37 Å. The C(29)-H(11) bond length is 0.93 Å. In the eighth C site, C(30) is bonded in a trigonal planar geometry to one C(10), one C(27), and one C(5) atom. The C(30)-C(10) bond length is 1.40 Å. The C(30)-C(5) bond length is 1.50 Å. In the ninth C site, C(1) is bonded in a trigonal planar geometry to one N(3), one N(4), and one H(3) atom. The C(1)-N(3) bond length is 1.32 Å. The C(1)-N(4) bond length is 1.31 Å. The C(1)-H(3) bond length is 0.93 Å. In the tenth C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(27), one O(1), and one O(5) atom. The C(2)-O(1) bond length is 1.27 Å. The C(2)-O(5) bond length is 1.25 Å. In the eleventh C site, C(3) is bonded in a distorted single-bond geometry to one C(14) and one H(2) atom. The C(3)-C(14) bond length is 1.37 Å. The C(3)-H(2) bond length is 0.93 Å. In the twelfth C site, C(4) is bonded in a trigonal planar geometry to one C(18), one C(19), and one C(20) atom. The C(4)-C(18) bond length is 1.38 Å. The C(4)-C(19) bond length is 1.38 Å. The C(4)-C(20) bond length is 1.49 Å. In the thirteenth C site, C(5) is bonded in a trigonal planar geometry to one C(18), one C(30), and one C(7) atom. The C(5)-C(18) bond length is 1.40 Å. The C(5)-C(7) bond length is 1.39 Å. In the fourteenth C site, C(6) is bonded in a trigonal planar geometry to one C(10), one C(13), and one C(15) atom. The C(6)-C(10) bond length is 1.39 Å. The C(6)-C(13) bond length is 1.49 Å. The C(6)-C(15) bond length is 1.39 Å. In the fifteenth C site, C(7) is bonded in a distorted single-bond geometry to one C(5), one C(9), and one H(14) atom. The C(7)-C(9) bond length is 1.38 Å. The C(7)-H(14) bond length is 0.93 Å. In the sixteenth C site, C(8) is bonded in a distorted single-bond geometry to one C(22) and one H(8) atom. The C(8)-C(22) bond length is 1.38 Å. The C(8)-H(8) bond length is 0.93 Å. In the seventeenth C site, C(9) is bonded in a trigonal planar geometry to one C(19), one C(21), and one C(7) atom. The C(9)-C(19) bond length is 1.40 Å. The C(9)-C(21) bond length is 1.50 Å. In the eighteenth C site, C(10) is bonded in a distorted single-bond geometry to one C(30), one C(6), and one H(6) atom. The C(10)-H(6) bond length is 0.93 Å. In the nineteenth C site, C(11) is bonded in a distorted single-bond geometry to one C(27) and one H(19) atom. The C(11)-H(19) bond length is 0.93 Å. In the twentieth C site, C(12) is bonded in a distorted single-bond geometry to one C(14) and one H(4) atom. The C(12)-C(14) bond length is 1.35 Å. The C(12)-H(4) bond length is 0.93 Å. In the twenty-first C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(6), one O(6), and one O(7) atom. The C(13)-O(6) bond length is 1.27 Å. The C(13)-O(7) bond length is 1.25 Å. In the twenty-second C site, C(14) is bonded in a trigonal planar geometry to one C(12), one C(24), and one C(3) atom. In the twenty-third C site, C(15) is bonded in a distorted single-bond geometry to one C(6) and one H(9) atom. The C(15)-H(9) bond length is 0.93 Å. In the twenty-fourth C site, C(16) is bonded in a 3-coordinate geometry to one C(22); one N(1); and two equivalent H(12,15) atoms. The C(16)-C(22) bond length is 1.52 Å. The C(16)-N(1) bond length is 1.48 Å. Both C(16)-H(12,15) bond lengths are 0.97 Å. In the twenty-fifth C site, C(17) is bonded in a distorted trigonal planar geometry to one C(26), one N(4), and one H(18) atom. The C(17)-N(4) bond length is 1.37 Å. The C(17)-H(18) bond length is 0.93 Å. In the twenty-sixth C site, C(18) is bonded in a single-bond geometry to one C(4), one C(5), and one H(13) atom. The C(18)-H(13) bond length is 0.93 Å. In the twenty-seventh C site, C(19) is bonded in a distorted single-bond geometry to one C(4), one C(9), and one H(17) atom. The C(19)-H(17) bond length is 0.93 Å. In the twenty-eighth C site, C(20) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(2), and one O(8) atom. The C(20)-O(2) bond length is 1.25 Å. The C(20)-O(8) bond length is 1.24 Å. In the twenty-ninth C site, C(21) is bonded in a distorted bent 120 degrees geometry to one C(9), one O(3), and one O(4) atom. The C(21)-O(3) bond length is 1.24 Å. The C(21)-O(4) bond length is 1.26 Å. In the thirtieth C site, C(22) is bonded in a trigonal planar geometry to one C(16), one C(25), and one C(8) atom. There are four inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one C(16), one C(23), and one C(29) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one Cd(2), one C(23), and one C(28) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one C(1), one C(24), and one C(26) atom. In the fourth N site, N(4) is bonded in a distorted trigonal planar geometry to one Cd(1), one C(1), and one C(17) atom. There are eighteen inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(26) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(1) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(12) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(25) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(10) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(23) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(8) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(15) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(28) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(29) atom. In the twelfth H site, H(12,15) is bonded in a single-bond geometry to one C(16) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(18) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(7) atom. In the fifteenth H site, H(16,20) is bonded in a single-bond geometry to one C(24) atom. In the sixteenth H site, H(17) is bonded in a single-bond geometry to one C(19) atom. In the seventeenth H site, H(18) is bonded in a single-bond geometry to one C(17) atom. In the eighteenth H site, H(19) is bonded in a single-bond geometry to one C(11) atom. There are eight inequivalent O sites. In the first O site, O(6) is bonded in a distorted L-shaped geometry to one Cd(2) and one C(13) atom. In the second O site, O(1) is bonded in a 2-coordinate geometry to one Cd(1), one Cd(2), and one C(2) atom. In the third O site, O(2) is bonded in a distorted single-bond geometry to one Cd(1) and one C(20) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to one Cd(2) and one C(21) atom. In the fifth O site, O(4) is bonded in a distorted water-like geometry to one Cd(2) and one C(21) atom. In the sixth O site, O(5) is bonded in a distorted water-like geometry to one Cd(1) and one C(2) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Cd(2) and one C(13) atom. In the eighth O site, O(8) is bonded in a distorted L-shaped geometry to one Cd(1) and one C(20) atom. Linkers: 4 c1cn(Cc2ccc(Cn3ccnc3)cc2)cn1 ,4 [O]C(=O)c1cc(C([O])=O)cc(-c2cc(C([O])=O)ccc2C([O])=O)c1. Metal clusters: 4 [C]1O[Cd](O[C]O[Cd]23(O[C]O2)O[C]O3)O1. RCSR code: sra. The MOF has largest included sphere 4.47 A, density 1.50 g/cm3, surface area 4053.17 m2/g, accessible volume 0.31 cm3/g