Ni2C19H22(NO4)2 crystallizes in the trigonal R3 space group. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a square pyramidal geometry to one N(1), one O(1), one O(3), one O(5), and one O(7) atom. The Ni(1)-N(1) bond length is 2.16 Å. The Ni(1)-O(1) bond length is 2.08 Å. The Ni(1)-O(3) bond length is 2.03 Å. The Ni(1)-O(5) bond length is 2.05 Å. The Ni(1)-O(7) bond length is 2.08 Å. In the second Ni site, Ni(2) is bonded in a square pyramidal geometry to one N(2), one O(2), one O(4), one O(6), and one O(8) atom. The Ni(2)-N(2) bond length is 2.17 Å. The Ni(2)-O(2) bond length is 2.05 Å. The Ni(2)-O(4) bond length is 2.06 Å. The Ni(2)-O(6) bond length is 2.03 Å. The Ni(2)-O(8) bond length is 2.03 Å. There are nineteen inequivalent C sites. In the first C site, C(1) is bonded in a 2-coordinate geometry to one O(1) and one O(2) atom. The C(1)-O(1) bond length is 1.15 Å. The C(1)-O(2) bond length is 1.24 Å. In the second C site, C(2) is bonded in a distorted trigonal non-coplanar geometry to one N(1) and two equivalent H(1,2) atoms. The C(2)-N(1) bond length is 1.48 Å. Both C(2)-H(1,2) bond lengths are 0.97 Å. In the third C site, C(3) is bonded in a 3-coordinate geometry to one N(1), one H(3), and one H(4) atom. The C(3)-N(1) bond length is 1.47 Å. The C(3)-H(3) bond length is 0.97 Å. The C(3)-H(4) bond length is 0.97 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. The C(4)-O(3) bond length is 1.24 Å. The C(4)-O(4) bond length is 1.24 Å. In the fifth C site, C(5) is bonded in a 3-coordinate geometry to one C(6); one N(1); and two equivalent H(5,6) atoms. The C(5)-C(6) bond length is 1.52 Å. The C(5)-N(1) bond length is 1.50 Å. Both C(5)-H(5,6) bond lengths are 0.97 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(11), one C(5), and one C(7) atom. The C(6)-C(11) bond length is 1.43 Å. The C(6)-C(7) bond length is 1.40 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(13), one C(6), and one C(8) atom. The C(7)-C(13) bond length is 1.56 Å. The C(7)-C(8) bond length is 1.36 Å. In the eighth C site, C(8) is bonded in a distorted trigonal planar geometry to one C(7), one C(9), and one H(7) atom. The C(8)-C(9) bond length is 1.38 Å. The C(8)-H(7) bond length is 0.93 Å. In the ninth C site, C(9) is bonded in a trigonal planar geometry to one C(10), one C(14), and one C(8) atom. The C(9)-C(10) bond length is 1.40 Å. The C(9)-C(14) bond length is 1.53 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one C(11), one C(15), and one C(9) atom. The C(10)-C(11) bond length is 1.42 Å. The C(10)-C(15) bond length is 1.49 Å. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one C(10), one C(12), and one C(6) atom. The C(11)-C(12) bond length is 1.53 Å. In the twelfth C site, C(12) is bonded in a trigonal non-coplanar geometry to one C(11); one H(10); and two equivalent H(8,9) atoms. The C(12)-H(10) bond length is 0.96 Å. Both C(12)-H(8,9) bond lengths are 0.96 Å. In the thirteenth C site, C(13) is bonded in a trigonal non-coplanar geometry to one C(7); one H(11); and two equivalent H(12,13) atoms. The C(13)-H(11) bond length is 0.96 Å. Both C(13)-H(12,13) bond lengths are 0.96 Å. In the fourteenth C site, C(14) is bonded in a trigonal non-coplanar geometry to one C(9); one H(14); and two equivalent H(15,16) atoms. The C(14)-H(14) bond length is 0.96 Å. Both C(14)-H(15,16) bond lengths are 0.96 Å. In the fifteenth C site, C(15) is bonded in a 4-coordinate geometry to one C(10); one N(2); and two equivalent H(17,18) atoms. The C(15)-N(2) bond length is 1.51 Å. Both C(15)-H(17,18) bond lengths are 0.97 Å. In the sixteenth C site, C(16) is bonded in a 3-coordinate geometry to one C(17); one N(2); and two equivalent H(19,20) atoms. The C(16)-C(17) bond length is 1.45 Å. The C(16)-N(2) bond length is 1.46 Å. Both C(16)-H(19,20) bond lengths are 0.97 Å. In the seventeenth C site, C(17) is bonded in a distorted bent 120 degrees geometry to one C(16), one O(5), and one O(6) atom. The C(17)-O(5) bond length is 1.29 Å. The C(17)-O(6) bond length is 1.33 Å. In the eighteenth C site, C(18) is bonded in a distorted bent 120 degrees geometry to one O(7) and one O(8) atom. The C(18)-O(7) bond length is 1.26 Å. The C(18)-O(8) bond length is 1.26 Å. In the nineteenth C site, C(19) is bonded in a 3-coordinate geometry to one N(2), one H(21), and one H(22) atom. The C(19)-N(2) bond length is 1.50 Å. The C(19)-H(21) bond length is 0.97 Å. The C(19)-H(22) bond length is 0.97 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a tetrahedral geometry to one Ni(1), one C(2), one C(3), and one C(5) atom. In the second N site, N(2) is bonded in a tetrahedral geometry to one Ni(2), one C(15), one C(16), and one C(19) atom. There are fifteen inequivalent H sites. In the first H site, H(1,2) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(3) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(4) is bonded in a single-bond geometry to one C(3) atom. In the fourth H site, H(5,6) is bonded in a single-bond geometry to one C(5) atom. In the fifth H site, H(7) is bonded in a single-bond geometry to one C(8) atom. In the sixth H site, H(8,9) is bonded in a single-bond geometry to one C(12) atom. In the seventh H site, H(10) is bonded in a single-bond geometry to one C(12) atom. In the eighth H site, H(11) is bonded in a single-bond geometry to one C(13) atom. In the ninth H site, H(12,13) is bonded in a single-bond geometry to one C(13) atom. In the tenth H site, H(14) is bonded in a single-bond geometry to one C(14) atom. In the eleventh H site, H(15,16) is bonded in a single-bond geometry to one C(14) atom. In the twelfth H site, H(17,18) is bonded in a single-bond geometry to one C(15) atom. In the thirteenth H site, H(19,20) is bonded in a single-bond geometry to one C(16) atom. In the fourteenth H site, H(21) is bonded in a single-bond geometry to one C(19) atom. In the fifteenth H site, H(22) is bonded in a single-bond geometry to one C(19) atom. There are eight inequivalent O sites. In the first O site, O(5) is bonded in a bent 120 degrees geometry to one Ni(1) and one C(17) atom. In the second O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Ni(1) and one C(1) atom. In the third O site, O(2) is bonded in a bent 120 degrees geometry to one Ni(2) and one C(1) atom. In the fourth O site, O(3) is bonded in a bent 120 degrees geometry to one Ni(1) and one C(4) atom. In the fifth O site, O(4) is bonded in a bent 120 degrees geometry to one Ni(2) and one C(4) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Ni(2) and one C(17) atom. In the seventh O site, O(8) is bonded in a bent 120 degrees geometry to one Ni(2) and one C(18) atom. In the eighth O site, O(7) is bonded in a bent 120 degrees geometry to one Ni(1) and one C(18) atom. Linkers: 3 Cc1cc(C)c(CN(CC([O])=O)CC([O])=O)c(C)c1CN(CC([O])=O)CC([O])=O. Metal clusters: 6 [Ni]. The MOF has largest included sphere 6.21 A, density 1.27 g/cm3, surface area 3868.04 m2/g, accessible volume 0.35 cm3/g