NiC18H32(NO2)4(CH)4(CH3)2 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of four 02329_fluka molecules, two 02329_fluka molecules, and one NiC18H32(NO2)4 cluster. In the NiC18H32(NO2)4 cluster, Ni(1) is bonded to two equivalent N(1), two equivalent N(2), and two equivalent O(1) atoms to form NiN4O2 octahedra that share corners with two equivalent C(3)C3N tetrahedra. Both Ni(1)-N(1) bond lengths are 2.12 Å. Both Ni(1)-N(2) bond lengths are 2.08 Å. Both Ni(1)-O(1) bond lengths are 2.11 Å. There are nine inequivalent C sites. In the first 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 1.27 Å. The C(1)-O(2) bond length is 1.29 Å. In the second C site, C(2) is bonded in a water-like geometry to one C(3), one H(2), and one H(3) atom. The C(2)-C(3) bond length is 1.54 Å. The C(2)-H(2) bond length is 1.10 Å. The C(2)-H(3) bond length is 1.10 Å. In the third C site, C(3) is bonded to one C(2), one C(7), one C(8), and one N(1) atom to form distorted CC3N tetrahedra that share  a cornercorner with one Ni(1)N4O2 octahedra. The corner-sharing octahedral tilt angles are 59°. The C(3)-C(7) bond length is 1.53 Å. The C(3)-C(8) bond length is 1.54 Å. The C(3)-N(1) bond length is 1.50 Å. In the fourth C site, C(4) is bonded in a distorted water-like geometry to one N(2) and one H(4) atom. The C(4)-N(2) bond length is 1.48 Å. The C(4)-H(4) bond length is 1.10 Å. In the fifth C site, C(5) is bonded in a distorted trigonal non-coplanar geometry to one N(2), one H(5), and one H(6) atom. The C(5)-N(2) bond length is 1.48 Å. The C(5)-H(5) bond length is 1.10 Å. The C(5)-H(6) bond length is 1.10 Å. In the sixth C site, C(6) is bonded in a distorted trigonal non-coplanar geometry to one N(1), one H(7), and one H(8) atom. The C(6)-N(1) bond length is 1.48 Å. The C(6)-H(7) bond length is 1.10 Å. The C(6)-H(8) bond length is 1.10 Å. In the seventh C site, C(7) is bonded in a trigonal non-coplanar geometry to one C(3), one H(10), one H(11), and one H(9) atom. The C(7)-H(10) bond length is 1.10 Å. The C(7)-H(11) bond length is 1.10 Å. The C(7)-H(9) bond length is 1.10 Å. In the eighth C site, C(8) is bonded in a trigonal non-coplanar geometry to one C(3), one H(12), one H(13), and one H(14) atom. The C(8)-H(12) bond length is 1.10 Å. The C(8)-H(13) bond length is 1.10 Å. The C(8)-H(14) bond length is 1.10 Å. In the ninth C site, C(12) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. The C(12)-O(3) bond length is 1.33 Å. The C(12)-O(4) bond length is 1.24 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 4-coordinate geometry to one Ni(1), one C(3), one C(6), and one H(1) atom. The N(1)-H(1) bond length is 1.03 Å. In the second N site, N(2) is bonded in a 4-coordinate geometry to one Ni(1), one C(4), one C(5), and one H(19) atom. The N(2)-H(19) bond length is 1.03 Å. There are sixteen inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one N(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(2) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(4) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(5) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(5) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(6) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(6) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(7) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(7) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(7) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(8) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(8) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(8) atom. In the fifteenth H site, H(19) is bonded in a single-bond geometry to one N(2) atom. In the sixteenth H site, H(20) is bonded in a linear geometry to one O(2) and one O(3) atom. The H(20)-O(2) bond length is 1.47 Å. The H(20)-O(3) bond length is 1.05 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Ni(1) and one C(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one C(1) and one H(20) atom. In the third O site, O(3) is bonded in a water-like geometry to one C(12) and one H(20) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one C(12) atom. Linkers: 1 C[C@@H]1CC(C)(C)NCCN[C@@H](C)CC(C)(C)NCCN1 ,1 [O]C(=O)/C=C/C([O])=O. Metal clusters: 1 [NH][Ni]([NH])([NH])([NH])(O[C][O])O[C][O]. The MOF has largest included sphere 2.33 A, density 1.42 g/cm3, surface area 5278.98 m2/g, accessible volume 0.15 cm3/g