ZnC18H16(NO)3 crystallizes in the triclinic P-1 space group. The structure consists of a ZnC18H16(NO)3 framework. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a tetrahedral geometry to one N(1), one N(12), one O(1), and one O(8) atom. The Zn(1)-N(1) bond length is 1.96 Å. The Zn(1)-N(12) bond length is 2.01 Å. The Zn(1)-O(1) bond length is 1.97 Å. The Zn(1)-O(8) bond length is 2.00 Å. In the second Zn site, Zn(2) is bonded in a tetrahedral geometry to one N(11), one N(2), one O(2), and one O(7) atom. The Zn(2)-N(11) bond length is 2.01 Å. The Zn(2)-N(2) bond length is 1.96 Å. The Zn(2)-O(2) bond length is 1.97 Å. The Zn(2)-O(7) bond length is 2.00 Å. In the third Zn site, Zn(3,4) is bonded in a tetrahedral geometry to one N(3), one N(5), one O(12), and one O(6) atom. The Zn(3,4)-N(3) bond length is 1.96 Å. The Zn(3,4)-N(5) bond length is 2.00 Å. The Zn(3,4)-O(12) bond length is 1.94 Å. The Zn(3,4)-O(6) bond length is 1.98 Å. There are fifty-eight inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(5), and one O(7) atom. The C(1)-C(3) bond length is 1.48 Å. The C(1)-O(5) bond length is 1.28 Å. The C(1)-O(7) bond length is 1.28 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(6), and one O(8) atom. The C(2)-C(4) bond length is 1.48 Å. The C(2)-O(6) bond length is 1.28 Å. The C(2)-O(8) bond length is 1.28 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(1), one C(13), and one C(5) atom. The C(3)-C(13) bond length is 1.40 Å. The C(3)-C(5) bond length is 1.40 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(14), one C(2), and one C(6) atom. The C(4)-C(14) bond length is 1.40 Å. The C(4)-C(6) bond length is 1.40 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(3), one C(7), and one H(1) atom. The C(5)-C(7) bond length is 1.39 Å. The C(5)-H(1) bond length is 1.09 Å. In the sixth C site, C(6) is bonded in a distorted trigonal planar geometry to one C(4), one C(8), and one H(2) atom. The C(6)-C(8) bond length is 1.39 Å. The C(6)-H(2) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a distorted trigonal planar geometry to one C(5); one C(9); and one H(3,4) atom. The C(7)-C(9) bond length is 1.41 Å. The C(7)-H(3,4) bond length is 1.09 Å. In the eighth C site, C(8) is bonded in a distorted trigonal planar geometry to one C(10); one C(6); and one H(3,4) atom. The C(8)-C(10) bond length is 1.41 Å. The C(8)-H(3,4) bond length is 1.09 Å. In the ninth C site, C(9) is bonded in a trigonal planar geometry to one C(11); one C(15,16); and one C(7) atom. The C(9)-C(11) bond length is 1.41 Å. The C(9)-C(15,16) bond length is 1.46 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one C(12); one C(15,16); and one C(8) atom. The C(10)-C(12) bond length is 1.41 Å. The C(10)-C(15,16) bond length is 1.46 Å. In the eleventh C site, C(11) is bonded in a distorted trigonal planar geometry to one C(13), one C(9), and one H(5) atom. The C(11)-C(13) bond length is 1.39 Å. The C(11)-H(5) bond length is 1.09 Å. In the twelfth C site, C(12) is bonded in a distorted trigonal planar geometry to one C(10), one C(14), and one H(6) atom. The C(12)-C(14) bond length is 1.39 Å. The C(12)-H(6) bond length is 1.09 Å. In the thirteenth C site, C(13) is bonded in a distorted trigonal planar geometry to one C(11), one C(3), and one H(7) atom. The C(13)-H(7) bond length is 1.09 Å. In the fourteenth C site, C(14) is bonded in a distorted trigonal planar geometry to one C(12), one C(4), and one H(8) atom. The C(14)-H(8) bond length is 1.09 Å. In the fifteenth C site, C(15,16) is bonded in a trigonal planar geometry to one C(17,18); one C(19,20); and one C(9) atom. The C(15,16)-C(17,18) bond length is 1.41 Å. The C(15,16)-C(19,20) bond length is 1.41 Å. In the sixteenth C site, C(17,18) is bonded in a distorted trigonal planar geometry to one C(15,16); one C(21,22); and one N(1) atom. The C(17,18)-C(21,22) bond length is 1.49 Å. The C(17,18)-N(1) bond length is 1.35 Å. In the seventeenth C site, C(19,20) is bonded in a distorted single-bond geometry to one C(15,16); one C(23,24); and one N(3) atom. The C(19,20)-C(23,24) bond length is 1.49 Å. The C(19,20)-N(3) bond length is 1.35 Å. In the eighteenth C site, C(21,22) is bonded in a distorted trigonal non-coplanar geometry to one C(17,18); one H(11,12); one H(13,14); and one H(9,10) atom. The C(21,22)-H(11,12) bond length is 1.10 Å. The C(21,22)-H(13,14) bond length is 1.10 Å. The C(21,22)-H(9,10) bond length is 1.10 Å. In the nineteenth C site, C(23,24) is bonded in a distorted trigonal non-coplanar geometry to one C(19,20); one H(15,16); one H(17,18); and one H(19,20) atom. The C(23,24)-H(15,16) bond length is 1.10 Å. The C(23,24)-H(17,18) bond length is 1.10 Å. The C(23,24)-H(19,20) bond length is 1.10 Å. In the twentieth C site, C(25) is bonded in a distorted bent 120 degrees geometry to one C(27), one O(1), and one O(3) atom. The C(25)-C(27) bond length is 1.50 Å. The C(25)-O(1) bond length is 1.30 Å. The C(25)-O(3) bond length is 1.26 Å. In the twenty-first C site, C(26) is bonded in a distorted bent 120 degrees geometry to one C(28), one O(2), and one O(4) atom. The C(26)-C(28) bond length is 1.50 Å. The C(26)-O(2) bond length is 1.30 Å. The C(26)-O(4) bond length is 1.26 Å. In the twenty-second C site, C(27) is bonded in a trigonal planar geometry to one C(25), one C(29), and one C(37) atom. The C(27)-C(29) bond length is 1.40 Å. The C(27)-C(37) bond length is 1.40 Å. In the twenty-third C site, C(28) is bonded in a trigonal planar geometry to one C(26), one C(30), and one C(38) atom. The C(28)-C(30) bond length is 1.40 Å. The C(28)-C(38) bond length is 1.40 Å. In the twenty-fourth C site, C(29) is bonded in a distorted single-bond geometry to one C(27); one C(31); and one H(21,22) atom. The C(29)-C(31) bond length is 1.40 Å. The C(29)-H(21,22) bond length is 1.09 Å. In the twenty-fifth C site, C(30) is bonded in a distorted single-bond geometry to one C(28); one C(32); and one H(21,22) atom. The C(30)-C(32) bond length is 1.39 Å. The C(30)-H(21,22) bond length is 1.09 Å. In the twenty-sixth C site, C(31) is bonded in a distorted trigonal planar geometry to one C(29); one C(33,34); and one H(23,24) atom. The C(31)-C(33,34) bond length is 1.41 Å. The C(31)-H(23,24) bond length is 1.09 Å. In the twenty-seventh C site, C(32) is bonded in a distorted trigonal planar geometry to one C(30); one C(33,34); and one H(23,24) atom. The C(32)-C(33,34) bond length is 1.41 Å. The C(32)-H(23,24) bond length is 1.09 Å. In the twenty-eighth C site, C(33,34) is bonded in a trigonal planar geometry to one C(31), one C(35), and one C(39) atom. The C(33,34)-C(35) bond length is 1.41 Å. The C(33,34)-C(39) bond length is 1.47 Å. In the twenty-ninth C site, C(35) is bonded in a distorted single-bond geometry to one C(33,34); one C(37); and one H(25,26) atom. The C(35)-C(37) bond length is 1.39 Å. The C(35)-H(25,26) bond length is 1.09 Å. In the thirtieth C site, C(36) is bonded in a distorted single-bond geometry to one C(33,34); one C(38); and one H(25,26) atom. The C(36)-C(33,34) bond length is 1.41 Å. The C(36)-C(38) bond length is 1.39 Å. The C(36)-H(25,26) bond length is 1.09 Å. In the thirty-first C site, C(37) is bonded in a distorted trigonal planar geometry to one C(27), one C(35), and one H(27) atom. The C(37)-H(27) bond length is 1.09 Å. In the thirty-second C site, C(38) is bonded in a distorted trigonal planar geometry to one C(28), one C(36), and one H(28) atom. The C(38)-H(28) bond length is 1.09 Å. In the thirty-third C site, C(39) is bonded in a trigonal planar geometry to one C(33,34); one C(41); and one C(43,44) atom. The C(39)-C(41) bond length is 1.41 Å. The C(39)-C(43,44) bond length is 1.42 Å. In the thirty-fourth C site, C(40) is bonded in a trigonal planar geometry to one C(33,34); one C(42); and one C(43,44) atom. The C(40)-C(33,34) bond length is 1.47 Å. The C(40)-C(42) bond length is 1.41 Å. The C(40)-C(43,44) bond length is 1.42 Å. In the thirty-fifth C site, C(41) is bonded in a distorted single-bond geometry to one C(39); one C(47,48); and one N(9,10) atom. The C(41)-C(47,48) bond length is 1.49 Å. The C(41)-N(9,10) bond length is 1.35 Å. In the thirty-sixth C site, C(42) is bonded in a distorted single-bond geometry to one C(40); one C(47,48); and one N(9,10) atom. The C(42)-C(47,48) bond length is 1.49 Å. The C(42)-N(9,10) bond length is 1.35 Å. In the thirty-seventh C site, C(43,44) is bonded in a distorted trigonal planar geometry to one C(39); one C(45,46); and one N(11) atom. The C(43,44)-C(45,46) bond length is 1.49 Å. The C(43,44)-N(11) bond length is 1.35 Å. In the thirty-eighth C site, C(45,46) is bonded in a distorted trigonal non-coplanar geometry to one C(43,44); one H(29,30); one H(31,32); and one H(33,34) atom. The C(45,46)-H(29,30) bond length is 1.10 Å. The C(45,46)-H(31,32) bond length is 1.10 Å. The C(45,46)-H(33,34) bond length is 1.10 Å. In the thirty-ninth C site, C(47,48) is bonded in a distorted trigonal non-coplanar geometry to one C(41); one H(35,36); one H(37,38); and one H(39,40) atom. The C(47,48)-H(35,36) bond length is 1.10 Å. The C(47,48)-H(37,38) bond length is 1.10 Å. The C(47,48)-H(39,40) bond length is 1.10 Å. In the fortieth C site, C(49) is bonded in a distorted bent 120 degrees geometry to one C(51), one O(11), and one O(9) atom. The C(49)-C(51) bond length is 1.50 Å. The C(49)-O(11) bond length is 1.29 Å. The C(49)-O(9) bond length is 1.26 Å. In the forty-first C site, C(50) is bonded in a distorted bent 120 degrees geometry to one C(52), one O(10), and one O(12) atom. The C(50)-C(52) bond length is 1.50 Å. The C(50)-O(10) bond length is 1.26 Å. The C(50)-O(12) bond length is 1.29 Å. In the forty-second C site, C(51) is bonded in a trigonal planar geometry to one C(49); one C(53,54); and one C(61,62) atom. The C(51)-C(53,54) bond length is 1.40 Å. The C(51)-C(61,62) bond length is 1.40 Å. In the forty-third C site, C(52) is bonded in a trigonal planar geometry to one C(50); one C(53,54); and one C(61,62) atom. The C(52)-C(53,54) bond length is 1.40 Å. The C(52)-C(61,62) bond length is 1.40 Å. In the forty-fourth C site, C(53,54) is bonded in a distorted trigonal planar geometry to one C(51), one C(55), and one H(41) atom. The C(53,54)-C(55) bond length is 1.39 Å. The C(53,54)-H(41) bond length is 1.09 Å. In the forty-fifth C site, C(55) is bonded in a distorted single-bond geometry to one C(53,54); one C(57,58); and one H(43,44) atom. The C(55)-C(57,58) bond length is 1.41 Å. The C(55)-H(43,44) bond length is 1.09 Å. In the forty-sixth C site, C(56) is bonded in a distorted single-bond geometry to one C(53,54); one C(57,58); and one H(43,44) atom. The C(56)-C(53,54) bond length is 1.39 Å. The C(56)-C(57,58) bond length is 1.41 Å. The C(56)-H(43,44) bond length is 1.09 Å. In the forty-seventh C site, C(57,58) is bonded in a trigonal planar geometry to one C(55), one C(59), and one C(63) atom. The C(57,58)-C(59) bond length is 1.41 Å. The C(57,58)-C(63) bond length is 1.46 Å. In the forty-eighth C site, C(59) is bonded in a distorted single-bond geometry to one C(57,58) and one H(45,46) atom. The C(59)-H(45,46) bond length is 1.09 Å. In the forty-ninth C site, C(60) is bonded in a distorted single-bond geometry to one C(57,58) and one H(45,46) atom. The C(60)-C(57,58) bond length is 1.41 Å. The C(60)-H(45,46) bond length is 1.09 Å. In the fiftieth C site, C(61,62) is bonded in a distorted single-bond geometry to one C(51) and one H(47,48) atom. The C(61,62)-H(47,48) bond length is 1.09 Å. In the fifty-first C site, C(63) is bonded in a trigonal planar geometry to one C(57,58); one C(65); and one C(67,68) atom. The C(63)-C(65) bond length is 1.41 Å. The C(63)-C(67,68) bond length is 1.41 Å. In the fifty-second C site, C(64) is bonded in a trigonal planar geometry to one C(57,58); one C(66); and one C(67,68) atom. The C(64)-C(57,58) bond length is 1.46 Å. The C(64)-C(66) bond length is 1.41 Å. The C(64)-C(67,68) bond length is 1.41 Å. In the fifty-third C site, C(65) is bonded in a distorted single-bond geometry to one C(63); one C(71,72); and one N(7,8) atom. The C(65)-C(71,72) bond length is 1.49 Å. The C(65)-N(7,8) bond length is 1.35 Å. In the fifty-fourth C site, C(66) is bonded in a distorted single-bond geometry to one C(64); one C(71,72); and one N(7,8) atom. The C(66)-C(71,72) bond length is 1.49 Å. The C(66)-N(7,8) bond length is 1.35 Å. In the fifty-fifth C site, C(67,68) is bonded in a distorted trigonal planar geometry to one C(63), one C(69), and one N(5) atom. The C(67,68)-C(69) bond length is 1.49 Å. The C(67,68)-N(5) bond length is 1.35 Å. In the fifty-sixth C site, C(69) is bonded in a distorted trigonal non-coplanar geometry to one C(67,68); one H(49,50); one H(51,52); and one H(53,54) atom. The C(69)-H(49,50) bond length is 1.10 Å. The C(69)-H(51,52) bond length is 1.10 Å. The C(69)-H(53,54) bond length is 1.10 Å. In the fifty-seventh C site, C(70) is bonded in a distorted trigonal non-coplanar geometry to one C(67,68); one H(49,50); one H(51,52); and one H(53,54) atom. The C(70)-C(67,68) bond length is 1.49 Å. The C(70)-H(49,50) bond length is 1.10 Å. The C(70)-H(51,52) bond length is 1.10 Å. The C(70)-H(53,54) bond length is 1.10 Å. In the fifty-eighth C site, C(71,72) is bonded in a distorted trigonal non-coplanar geometry to one C(65); one H(55,56); one H(57,58); and one H(59,60) atom. The C(71,72)-H(55,56) bond length is 1.10 Å. The C(71,72)-H(57,58) bond length is 1.10 Å. The C(71,72)-H(59,60) bond length is 1.10 Å. There are ten inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Zn(1); one C(17,18); and one N(3) atom. The N(1)-N(3) bond length is 1.37 Å. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one Zn(2); one C(17,18); and one N(4) atom. The N(2)-C(17,18) bond length is 1.35 Å. The N(2)-N(4) bond length is 1.37 Å. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one Zn(3,4); one C(19,20); and one N(1) atom. In the fourth N site, N(4) is bonded in a distorted trigonal planar geometry to one Zn(3,4); one C(19,20); and one N(2) atom. The N(4)-Zn(3,4) bond length is 1.96 Å. The N(4)-C(19,20) bond length is 1.35 Å. In the fifth N site, N(5) is bonded in a distorted trigonal planar geometry to one Zn(3,4); one C(67,68); and one N(7,8) atom. The N(5)-N(7,8) bond length is 1.36 Å. In the sixth N site, N(6) is bonded in a distorted trigonal planar geometry to one Zn(3,4); one C(67,68); and one N(7,8) atom. The N(6)-Zn(3,4) bond length is 2.00 Å. The N(6)-C(67,68) bond length is 1.35 Å. The N(6)-N(7,8) bond length is 1.36 Å. In the seventh N site, N(7,8) is bonded in a 2-coordinate geometry to one C(65), one N(5), and one H(61) atom. The N(7,8)-H(61) bond length is 1.05 Å. In the eighth N site, N(9,10) is bonded in a 2-coordinate geometry to one C(41), one N(11), and one H(63) atom. The N(9,10)-N(11) bond length is 1.36 Å. The N(9,10)-H(63) bond length is 1.05 Å. In the ninth N site, N(11) is bonded in a distorted trigonal planar geometry to one Zn(2); one C(43,44); and one N(9,10) atom. In the tenth N site, N(12) is bonded in a distorted trigonal planar geometry to one Zn(1); one C(43,44); and one N(9,10) atom. The N(12)-C(43,44) bond length is 1.35 Å. The N(12)-N(9,10) bond length is 1.36 Å. There are thirty-nine inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(5) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(6) atom. In the third H site, H(3,4) is bonded in a single-bond geometry to one C(7) atom. In the fourth H site, H(5) is bonded in a single-bond geometry to one C(11) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one C(12) atom. In the sixth H site, H(7) is bonded in a single-bond geometry to one C(13) atom. In the seventh H site, H(8) is bonded in a single-bond geometry to one C(14) atom. In the eighth H site, H(9,10) is bonded in a single-bond geometry to one C(21,22) atom. In the ninth H site, H(11,12) is bonded in a single-bond geometry to one C(21,22) atom. In the tenth H site, H(13,14) is bonded in a single-bond geometry to one C(21,22) atom. In the eleventh H site, H(15,16) is bonded in a single-bond geometry to one C(23,24) atom. In the twelfth H site, H(17,18) is bonded in a single-bond geometry to one C(23,24) atom. In the thirteenth H site, H(19,20) is bonded in a single-bond geometry to one C(23,24) atom. In the fourteenth H site, H(21,22) is bonded in a single-bond geometry to one C(29) atom. In the fifteenth H site, H(23,24) is bonded in a single-bond geometry to one C(31) atom. In the sixteenth H site, H(25,26) is bonded in a single-bond geometry to one C(35) atom. In the seventeenth H site, H(27) is bonded in a single-bond geometry to one C(37) atom. In the eighteenth H site, H(28) is bonded in a single-bond geometry to one C(38) atom. In the nineteenth H site, H(29,30) is bonded in a single-bond geometry to one C(45,46) atom. In the twentieth H site, H(31,32) is bonded in a single-bond geometry to one C(45,46) atom. In the twenty-first H site, H(33,34) is bonded in a single-bond geometry to one C(45,46) atom. In the twenty-second H site, H(35,36) is bonded in a single-bond geometry to one C(47,48) atom. In the twenty-third H site, H(37,38) is bonded in a single-bond geometry to one C(47,48) atom. In the twenty-fourth H site, H(39,40) is bonded in a single-bond geometry to one C(47,48) atom. In the twenty-fifth H site, H(41) is bonded in a single-bond geometry to one C(53,54) atom. In the twenty-sixth H site, H(42) is bonded in a single-bond geometry to one C(53,54) atom. The H(42)-C(53,54) bond length is 1.09 Å. In the twenty-seventh H site, H(43,44) is bonded in a single-bond geometry to one C(55) atom. In the twenty-eighth H site, H(45,46) is bonded in a single-bond geometry to one C(59) atom. In the twenty-ninth H site, H(47,48) is bonded in a single-bond geometry to one C(61,62) atom. In the thirtieth H site, H(49,50) is bonded in a single-bond geometry to one C(69) atom. In the thirty-first H site, H(51,52) is bonded in a single-bond geometry to one C(69) atom. In the thirty-second H site, H(53,54) is bonded in a single-bond geometry to one C(69) atom. In the thirty-third H site, H(55,56) is bonded in a single-bond geometry to one C(71,72) atom. In the thirty-fourth H site, H(57,58) is bonded in a single-bond geometry to one C(71,72) atom. In the thirty-fifth H site, H(59,60) is bonded in a single-bond geometry to one C(71,72) atom. In the thirty-sixth H site, H(61) is bonded in a distorted single-bond geometry to one N(7,8) and one O(10) atom. The H(61)-O(10) bond length is 1.69 Å. In the thirty-seventh H site, H(62) is bonded in a distorted single-bond geometry to one N(7,8) and one O(9) atom. The H(62)-N(7,8) bond length is 1.05 Å. The H(62)-O(9) bond length is 1.69 Å. In the thirty-eighth H site, H(63) is bonded in a single-bond geometry to one N(9,10) atom. In the thirty-ninth H site, H(64) is bonded in a single-bond geometry to one N(9,10) atom. The H(64)-N(9,10) bond length is 1.05 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(25) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Zn(2) and one C(26) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one C(25) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one C(26) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Zn(3,4) and one C(1) atom. The O(5)-Zn(3,4) bond length is 1.98 Å. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Zn(3,4) and one C(2) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one Zn(2) and one C(1) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(2) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one C(49) and one H(62) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one C(50) and one H(61) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one Zn(3,4) and one C(49) atom. The O(11)-Zn(3,4) bond length is 1.94 Å. In the twelfth O site, O(12) is bonded in a bent 120 degrees geometry to one Zn(3,4) and one C(50) atom. Linkers: 8 Cc1n[nH]c(C)c1-c1ccc(C([O])=O)cc1 ,1 CC1=NN=C(C)[C]1c1ccc(C([O])=O)cc1 ,1 C[C]1N=NC(C)=C1c1ccc(C([O])=O)cc1 ,1 CC1=N[N]C(C)=C1c1ccc(C([O])=O)cc1. Metal clusters: 2 O=[C]O[Zn]1N=N[Zn](O[C]=O)O[C]O1 ,4 [Zn]. The MOF has largest included sphere 4.53 A, density 1.21 g/cm3, surface area 5012.08 m2/g, accessible volume 0.31 cm3/g