Ni3C8H12(N3O7)2 crystallizes in the triclinic P1 space group. There are nine inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one N(1), one N(6), one O(12), one O(3), one O(5), and one O(7) atom to form distorted corner-sharing NiN2O4 octahedra. The corner-sharing octahedral tilt angles are 67°. The Ni(1)-N(1) bond length is 1.94 Å. The Ni(1)-N(6) bond length is 1.94 Å. The Ni(1)-O(12) bond length is 2.17 Å. The Ni(1)-O(3) bond length is 2.04 Å. The Ni(1)-O(5) bond length is 2.04 Å. The Ni(1)-O(7) bond length is 2.17 Å. In the second Ni site, Ni(2) is bonded to one N(2), one N(5), one O(1), one O(11), one O(4), and one O(8) atom to form distorted corner-sharing NiN2O4 octahedra. The corner-sharing octahedral tilt angles range from 67-68°. The Ni(2)-N(2) bond length is 1.94 Å. The Ni(2)-N(5) bond length is 1.94 Å. The Ni(2)-O(1) bond length is 2.05 Å. The Ni(2)-O(11) bond length is 2.17 Å. The Ni(2)-O(4) bond length is 2.05 Å. The Ni(2)-O(8) bond length is 2.17 Å. In the third Ni site, Ni(3) is bonded to one N(3), one N(4), one O(10), one O(2), one O(6), and one O(9) atom to form distorted corner-sharing NiN2O4 octahedra. The corner-sharing octahedral tilt angles are 67°. The Ni(3)-N(3) bond length is 1.94 Å. The Ni(3)-N(4) bond length is 1.94 Å. The Ni(3)-O(10) bond length is 2.17 Å. The Ni(3)-O(2) bond length is 2.05 Å. The Ni(3)-O(6) bond length is 2.05 Å. The Ni(3)-O(9) bond length is 2.17 Å. In the fourth Ni site, Ni(4) is bonded to one N(17), one N(7), one O(1), one O(19), one O(25), and one O(31) atom to form corner-sharing NiN2O4 octahedra. The corner-sharing octahedral tilt angles are 68°. The Ni(4)-N(17) bond length is 2.04 Å. The Ni(4)-N(7) bond length is 2.02 Å. The Ni(4)-O(1) bond length is 2.20 Å. The Ni(4)-O(19) bond length is 2.17 Å. The Ni(4)-O(25) bond length is 2.20 Å. The Ni(4)-O(31) bond length is 2.04 Å. In the fifth Ni site, Ni(5) is bonded to one N(16), one N(8), one O(2), one O(20), one O(26), and one O(32) atom to form corner-sharing NiN2O4 octahedra. The corner-sharing octahedral tilt angles are 67°. The Ni(5)-N(16) bond length is 2.04 Å. The Ni(5)-N(8) bond length is 2.02 Å. The Ni(5)-O(2) bond length is 2.19 Å. The Ni(5)-O(20) bond length is 2.17 Å. The Ni(5)-O(26) bond length is 2.20 Å. The Ni(5)-O(32) bond length is 2.05 Å. In the sixth Ni site, Ni(6) is bonded to one N(18); one N(9,12); one O(21); one O(27,30); one O(3); and one O(33) atom to form corner-sharing NiN2O4 octahedra. The corner-sharing octahedral tilt angles are 67°. The Ni(6)-N(18) bond length is 2.04 Å. The Ni(6)-N(9,12) bond length is 2.02 Å. The Ni(6)-O(21) bond length is 2.17 Å. The Ni(6)-O(27,30) bond length is 2.20 Å. The Ni(6)-O(3) bond length is 2.19 Å. The Ni(6)-O(33) bond length is 2.05 Å. In the seventh Ni site, Ni(7) is bonded to one N(10), one N(14), one O(22), one O(28), one O(34), and one O(4) atom to form corner-sharing NiN2O4 octahedra. The corner-sharing octahedral tilt angles are 67°. The Ni(7)-N(10) bond length is 2.02 Å. The Ni(7)-N(14) bond length is 2.04 Å. The Ni(7)-O(22) bond length is 2.17 Å. The Ni(7)-O(28) bond length is 2.20 Å. The Ni(7)-O(34) bond length is 2.05 Å. The Ni(7)-O(4) bond length is 2.19 Å. In the eighth Ni site, Ni(8) is bonded to one N(11), one N(13), one O(23), one O(29), one O(35), and one O(5) atom to form corner-sharing NiN2O4 octahedra. The corner-sharing octahedral tilt angles are 67°. The Ni(8)-N(11) bond length is 2.02 Å. The Ni(8)-N(13) bond length is 2.04 Å. The Ni(8)-O(23) bond length is 2.17 Å. The Ni(8)-O(29) bond length is 2.20 Å. The Ni(8)-O(35) bond length is 2.05 Å. The Ni(8)-O(5) bond length is 2.19 Å. In the ninth Ni site, Ni(9) is bonded to one N(15); one N(9,12); one O(24); one O(27,30); one O(36); and one O(6) atom to form corner-sharing NiN2O4 octahedra. The corner-sharing octahedral tilt angles are 67°. The Ni(9)-N(15) bond length is 2.04 Å. The Ni(9)-N(9,12) bond length is 2.02 Å. The Ni(9)-O(24) bond length is 2.17 Å. The Ni(9)-O(27,30) bond length is 2.20 Å. The Ni(9)-O(36) bond length is 2.05 Å. The Ni(9)-O(6) bond length is 2.19 Å. There are twenty-three inequivalent C sites. In the first C site, C(1) is bonded in a distorted water-like geometry to one N(13) and one N(7) atom. The C(1)-N(13) bond length is 1.35 Å. The C(1)-N(7) bond length is 1.36 Å. In the second C site, C(2) is bonded in a distorted water-like geometry to one N(14) and one N(8) atom. The C(2)-N(14) bond length is 1.35 Å. The C(2)-N(8) bond length is 1.36 Å. In the third C site, C(3,6) is bonded in a distorted water-like geometry to one N(15) and one N(9,12) atom. The C(3,6)-N(15) bond length is 1.35 Å. The C(3,6)-N(9,12) bond length is 1.36 Å. In the fourth C site, C(4) is bonded in a distorted water-like geometry to one N(10) and one N(16) atom. The C(4)-N(10) bond length is 1.36 Å. The C(4)-N(16) bond length is 1.35 Å. In the fifth C site, C(5) is bonded in a distorted water-like geometry to one N(11) and one N(17) atom. The C(5)-N(11) bond length is 1.36 Å. The C(5)-N(17) bond length is 1.35 Å. In the sixth C site, C(7) is bonded in a distorted water-like geometry to one N(1) and one N(7) atom. The C(7)-N(1) bond length is 1.34 Å. The C(7)-N(7) bond length is 1.35 Å. In the seventh C site, C(8) is bonded in a distorted water-like geometry to one N(2) and one N(8) atom. The C(8)-N(2) bond length is 1.34 Å. The C(8)-N(8) bond length is 1.35 Å. In the eighth C site, C(9) is bonded in a distorted water-like geometry to one N(3) and one N(9,12) atom. The C(9)-N(3) bond length is 1.34 Å. The C(9)-N(9,12) bond length is 1.35 Å. In the ninth C site, C(10) is bonded in a distorted water-like geometry to one N(10) and one N(4) atom. The C(10)-N(10) bond length is 1.35 Å. The C(10)-N(4) bond length is 1.34 Å. In the tenth C site, C(11) is bonded in a distorted water-like geometry to one N(11) and one N(5) atom. The C(11)-N(11) bond length is 1.35 Å. The C(11)-N(5) bond length is 1.34 Å. In the eleventh C site, C(12) is bonded in a distorted water-like geometry to one N(6) and one N(9,12) atom. The C(12)-N(6) bond length is 1.34 Å. The C(12)-N(9,12) bond length is 1.35 Å. In the twelfth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(13) atom. The C(13)-O(1) bond length is 1.29 Å. The C(13)-O(13) bond length is 1.26 Å. In the thirteenth C site, C(14) is bonded in a distorted bent 120 degrees geometry to one O(14) and one O(2) atom. The C(14)-O(14) bond length is 1.26 Å. The C(14)-O(2) bond length is 1.29 Å. In the fourteenth C site, C(15) is bonded in a distorted bent 120 degrees geometry to one O(15) and one O(3) atom. The C(15)-O(15) bond length is 1.26 Å. The C(15)-O(3) bond length is 1.29 Å. In the fifteenth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one O(16) and one O(4) atom. The C(16)-O(16) bond length is 1.26 Å. The C(16)-O(4) bond length is 1.29 Å. In the sixteenth C site, C(17) is bonded in a distorted bent 120 degrees geometry to one O(17) and one O(5) atom. The C(17)-O(17) bond length is 1.26 Å. The C(17)-O(5) bond length is 1.29 Å. In the seventeenth C site, C(18) is bonded in a distorted bent 120 degrees geometry to one O(18) and one O(6) atom. The C(18)-O(18) bond length is 1.26 Å. The C(18)-O(6) bond length is 1.29 Å. In the eighteenth C site, C(19) is bonded in a distorted bent 120 degrees geometry to one O(37) and one O(7) atom. The C(19)-O(37) bond length is 1.25 Å. The C(19)-O(7) bond length is 1.29 Å. In the nineteenth C site, C(20) is bonded in a distorted bent 120 degrees geometry to one O(38) and one O(8) atom. The C(20)-O(38) bond length is 1.25 Å. The C(20)-O(8) bond length is 1.29 Å. In the twentieth C site, C(21) is bonded in a distorted bent 120 degrees geometry to one O(39) and one O(9) atom. The C(21)-O(39) bond length is 1.25 Å. The C(21)-O(9) bond length is 1.29 Å. In the twenty-first C site, C(22) is bonded in a distorted bent 120 degrees geometry to one O(10) and one O(40) atom. The C(22)-O(10) bond length is 1.29 Å. The C(22)-O(40) bond length is 1.25 Å. In the twenty-second C site, C(23) is bonded in a distorted bent 120 degrees geometry to one O(11) and one O(41) atom. The C(23)-O(11) bond length is 1.29 Å. The C(23)-O(41) bond length is 1.25 Å. In the twenty-third C site, C(24) is bonded in a distorted bent 120 degrees geometry to one O(12) and one O(42) atom. The C(24)-O(12) bond length is 1.29 Å. The C(24)-O(42) bond length is 1.25 Å. There are seventeen inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Ni(1), one C(7), and one N(13) atom. The N(1)-N(13) bond length is 1.34 Å. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one Ni(2), one C(8), and one N(14) atom. The N(2)-N(14) bond length is 1.34 Å. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one Ni(3), one C(9), and one N(15) atom. The N(3)-N(15) bond length is 1.34 Å. In the fourth N site, N(4) is bonded in a distorted trigonal planar geometry to one Ni(3), one C(10), and one N(16) atom. The N(4)-N(16) bond length is 1.34 Å. In the fifth N site, N(5) is bonded in a distorted trigonal planar geometry to one Ni(2), one C(11), and one N(17) atom. The N(5)-N(17) bond length is 1.34 Å. In the sixth N site, N(6) is bonded in a distorted trigonal planar geometry to one Ni(1), one C(12), and one N(18) atom. The N(6)-N(18) bond length is 1.34 Å. In the seventh N site, N(7) is bonded in a distorted trigonal planar geometry to one Ni(4), one C(1), and one C(7) atom. In the eighth N site, N(8) is bonded in a distorted trigonal planar geometry to one Ni(5), one C(2), and one C(8) atom. In the ninth N site, N(9,12) is bonded in a distorted trigonal planar geometry to one Ni(6); one C(3,6); and one C(9) atom. In the tenth N site, N(10) is bonded in a distorted trigonal planar geometry to one Ni(7), one C(10), and one C(4) atom. In the eleventh N site, N(11) is bonded in a distorted trigonal planar geometry to one Ni(8), one C(11), and one C(5) atom. In the twelfth N site, N(13) is bonded in a 3-coordinate geometry to one Ni(8), one C(1), and one N(1) atom. In the thirteenth N site, N(14) is bonded in a 3-coordinate geometry to one Ni(7), one C(2), and one N(2) atom. In the fourteenth N site, N(15) is bonded in a 3-coordinate geometry to one Ni(9); one C(3,6); and one N(3) atom. In the fifteenth N site, N(16) is bonded in a 3-coordinate geometry to one Ni(5), one C(4), and one N(4) atom. In the sixteenth N site, N(17) is bonded in a 3-coordinate geometry to one Ni(4), one C(5), and one N(5) atom. In the seventeenth N site, N(18) is bonded in a 3-coordinate geometry to one Ni(6); one C(3,6); and one N(6) atom. The N(18)-C(3,6) bond length is 1.35 Å. There are thirty-five inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one O(31) and one O(37) atom. The H(1)-O(31) bond length is 1.01 Å. The H(1)-O(37) bond length is 1.59 Å. In the second H site, H(2) is bonded in a distorted single-bond geometry to one O(32) and one O(38) atom. The H(2)-O(32) bond length is 1.01 Å. The H(2)-O(38) bond length is 1.59 Å. In the third H site, H(3) is bonded in a distorted single-bond geometry to one O(33) and one O(39) atom. The H(3)-O(33) bond length is 1.01 Å. The H(3)-O(39) bond length is 1.59 Å. In the fourth H site, H(4) is bonded in a distorted single-bond geometry to one O(34) and one O(40) atom. The H(4)-O(34) bond length is 1.01 Å. The H(4)-O(40) bond length is 1.59 Å. In the fifth H site, H(5) is bonded in a distorted single-bond geometry to one O(35) and one O(41) atom. The H(5)-O(35) bond length is 1.01 Å. The H(5)-O(41) bond length is 1.59 Å. In the sixth H site, H(6) is bonded in a distorted single-bond geometry to one O(36) and one O(42) atom. The H(6)-O(36) bond length is 1.01 Å. The H(6)-O(42) bond length is 1.59 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(17) and one O(31) atom. The H(7)-O(17) bond length is 1.72 Å. The H(7)-O(31) bond length is 0.99 Å. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(16) and one O(32) atom. The H(8)-O(16) bond length is 1.71 Å. The H(8)-O(32) bond length is 0.99 Å. In the ninth H site, H(9) is bonded in a single-bond geometry to one O(18) and one O(33) atom. The H(9)-O(18) bond length is 1.72 Å. The H(9)-O(33) bond length is 0.99 Å. In the tenth H site, H(10) is bonded in a single-bond geometry to one O(14) and one O(34) atom. The H(10)-O(14) bond length is 1.71 Å. The H(10)-O(34) bond length is 0.99 Å. In the eleventh H site, H(11) is bonded in a single-bond geometry to one O(13) and one O(35) atom. The H(11)-O(13) bond length is 1.71 Å. The H(11)-O(35) bond length is 0.99 Å. In the twelfth H site, H(12) is bonded in a single-bond geometry to one O(15) and one O(36) atom. The H(12)-O(15) bond length is 1.72 Å. The H(12)-O(36) bond length is 0.99 Å. In the thirteenth H site, H(13) is bonded in a distorted single-bond geometry to one O(16) and one O(19) atom. The H(13)-O(16) bond length is 1.69 Å. The H(13)-O(19) bond length is 1.00 Å. In the fourteenth H site, H(14) is bonded in a distorted single-bond geometry to one O(18) and one O(20) atom. The H(14)-O(18) bond length is 1.69 Å. The H(14)-O(20) bond length is 1.00 Å. In the fifteenth H site, H(15) is bonded in a distorted single-bond geometry to one O(17) and one O(21) atom. The H(15)-O(17) bond length is 1.69 Å. The H(15)-O(21) bond length is 1.00 Å. In the sixteenth H site, H(16) is bonded in a distorted single-bond geometry to one O(13) and one O(22) atom. The H(16)-O(13) bond length is 1.69 Å. The H(16)-O(22) bond length is 1.00 Å. In the seventeenth H site, H(17) is bonded in a distorted single-bond geometry to one O(15) and one O(23) atom. The H(17)-O(15) bond length is 1.69 Å. The H(17)-O(23) bond length is 1.00 Å. In the eighteenth H site, H(18) is bonded in a distorted single-bond geometry to one O(14) and one O(24) atom. The H(18)-O(14) bond length is 1.69 Å. The H(18)-O(24) bond length is 1.00 Å. In the nineteenth H site, H(19) is bonded in a single-bond geometry to one O(25) atom. The H(19)-O(25) bond length is 0.97 Å. In the twentieth H site, H(20) is bonded in a single-bond geometry to one O(26) atom. The H(20)-O(26) bond length is 0.97 Å. In the twenty-first H site, H(21) is bonded in a single-bond geometry to one O(27,30) atom. The H(21)-O(27,30) bond length is 0.97 Å. In the twenty-second H site, H(22) is bonded in a single-bond geometry to one O(28) atom. The H(22)-O(28) bond length is 0.97 Å. In the twenty-third H site, H(23) is bonded in a single-bond geometry to one O(29) atom. The H(23)-O(29) bond length is 0.97 Å. In the twenty-fourth H site, H(24) is bonded in a single-bond geometry to one O(27,30) atom. The H(24)-O(27,30) bond length is 0.97 Å. In the twenty-fifth H site, H(25) is bonded in a single-bond geometry to one O(19) atom. The H(25)-O(19) bond length is 0.97 Å. In the twenty-sixth H site, H(26) is bonded in a single-bond geometry to one O(20) atom. The H(26)-O(20) bond length is 0.97 Å. In the twenty-seventh H site, H(27,30) is bonded in a single-bond geometry to one O(21) atom. The H(27,30)-O(21) bond length is 0.97 Å. In the twenty-eighth H site, H(28) is bonded in a single-bond geometry to one O(22) atom. The H(28)-O(22) bond length is 0.97 Å. In the twenty-ninth H site, H(29) is bonded in a single-bond geometry to one O(23) atom. The H(29)-O(23) bond length is 0.97 Å. In the thirtieth H site, H(31) is bonded in a single-bond geometry to one O(25) atom. The H(31)-O(25) bond length is 1.00 Å. In the thirty-first H site, H(32) is bonded in a single-bond geometry to one O(26) atom. The H(32)-O(26) bond length is 1.00 Å. In the thirty-second H site, H(33) is bonded in a single-bond geometry to one O(27,30) atom. The H(33)-O(27,30) bond length is 1.00 Å. In the thirty-third H site, H(34) is bonded in a single-bond geometry to one O(28) atom. The H(34)-O(28) bond length is 1.00 Å. In the thirty-fourth H site, H(35) is bonded in a single-bond geometry to one O(29) atom. The H(35)-O(29) bond length is 1.00 Å. In the thirty-fifth H site, H(36) is bonded in a single-bond geometry to one O(27,30) atom. The H(36)-O(27,30) bond length is 1.00 Å. There are forty-one inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Ni(2), one Ni(4), and one C(13) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Ni(3), one Ni(5), and one C(14) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Ni(1), one Ni(6), and one C(15) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Ni(2), one Ni(7), and one C(16) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Ni(1), one Ni(8), and one C(17) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Ni(3), one Ni(9), and one C(18) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Ni(1) and one C(19) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Ni(2) and one C(20) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one Ni(3) and one C(21) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Ni(3) and one C(22) atom. In the eleventh O site, O(11) is bonded in a distorted bent 120 degrees geometry to one Ni(2) and one C(23) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Ni(1) and one C(24) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal planar geometry to one C(13), one H(11), and one H(16) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal planar geometry to one C(14), one H(10), and one H(18) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal planar geometry to one C(15), one H(12), and one H(17) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal planar geometry to one C(16), one H(13), and one H(8) atom. In the seventeenth O site, O(17) is bonded in a distorted single-bond geometry to one C(17), one H(15), and one H(7) atom. In the eighteenth O site, O(18) is bonded in a distorted trigonal planar geometry to one C(18), one H(14), and one H(9) atom. In the nineteenth O site, O(19) is bonded in a distorted trigonal non-coplanar geometry to one Ni(4), one H(13), and one H(25) atom. In the twentieth O site, O(20) is bonded in a distorted trigonal non-coplanar geometry to one Ni(5), one H(14), and one H(26) atom. In the twenty-first O site, O(21) is bonded in a distorted trigonal non-coplanar geometry to one Ni(6); one H(15); and one H(27,30) atom. In the twenty-second O site, O(22) is bonded in a distorted trigonal non-coplanar geometry to one Ni(7), one H(16), and one H(28) atom. In the twenty-third O site, O(23) is bonded in a distorted trigonal non-coplanar geometry to one Ni(8), one H(17), and one H(29) atom. In the twenty-fourth O site, O(24) is bonded in a distorted trigonal non-coplanar geometry to one Ni(9); one H(18); and one H(27,30) atom. The O(24)-H(27,30) bond length is 0.97 Å. In the twenty-fifth O site, O(25) is bonded in a trigonal non-coplanar geometry to one Ni(4), one H(19), and one H(31) atom. In the twenty-sixth O site, O(26) is bonded in a trigonal non-coplanar geometry to one Ni(5), one H(20), and one H(32) atom. In the twenty-seventh O site, O(27,30) is bonded in a trigonal non-coplanar geometry to one Ni(6), one H(21), and one H(33) atom. In the twenty-eighth O site, O(28) is bonded in a trigonal non-coplanar geometry to one Ni(7), one H(22), and one H(34) atom. In the twenty-ninth O site, O(29) is bonded in a trigonal non-coplanar geometry to one Ni(8), one H(23), and one H(35) atom. In the thirtieth O site, O(31) is bonded in a distorted trigonal non-coplanar geometry to one Ni(4), one H(1), and one H(7) atom. In the thirty-first O site, O(32) is bonded in a distorted trigonal non-coplanar geometry to one Ni(5), one H(2), and one H(8) atom. In the thirty-second O site, O(33) is bonded in a distorted trigonal non-coplanar geometry to one Ni(6), one H(3), and one H(9) atom. In the thirty-third O site, O(34) is bonded in a distorted trigonal non-coplanar geometry to one Ni(7), one H(10), and one H(4) atom. In the thirty-fourth O site, O(35) is bonded in a distorted trigonal non-coplanar geometry to one Ni(8), one H(11), and one H(5) atom. In the thirty-fifth O site, O(36) is bonded in a distorted trigonal non-coplanar geometry to one Ni(9), one H(12), and one H(6) atom. In the thirty-sixth O site, O(37) is bonded in a bent 120 degrees geometry to one C(19) and one H(1) atom. In the thirty-seventh O site, O(38) is bonded in a bent 120 degrees geometry to one C(20) and one H(2) atom. In the thirty-eighth O site, O(39) is bonded in a bent 120 degrees geometry to one C(21) and one H(3) atom. In the thirty-ninth O site, O(40) is bonded in a bent 120 degrees geometry to one C(22) and one H(4) atom. In the fortieth O site, O(41) is bonded in a bent 120 degrees geometry to one C(23) and one H(5) atom. In the forty-first O site, O(42) is bonded in a bent 120 degrees geometry to one C(24) and one H(6) atom. Linkers: 3 [O]C(=O)C1=NC(C([O])=O)=N[N]1 ,3 [O]C(=O)C1=NN=C(C([O])=O)[N]1. Metal clusters: 9 [Ni]. The MOF has largest included sphere 5.54 A, density 1.49 g/cm3, surface area 3335.50 m2/g, accessible volume 0.29 cm3/g