GdC18H15(NO2)6 is Indium-like structured and crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of one GdC18H15(NO2)6 cluster. Gd(1) is bonded in a 10-coordinate geometry to one O(10), one O(11), one O(2), one O(3), one O(5), one O(6), one O(8), one O(9), and two equivalent O(1) atoms. The Gd(1)-O(10) bond length is 2.57 Å. The Gd(1)-O(11) bond length is 2.57 Å. The Gd(1)-O(2) bond length is 2.57 Å. The Gd(1)-O(3) bond length is 2.46 Å. The Gd(1)-O(5) bond length is 2.51 Å. The Gd(1)-O(6) bond length is 2.61 Å. The Gd(1)-O(8) bond length is 2.32 Å. The Gd(1)-O(9) bond length is 2.40 Å. There is one shorter (2.46 Å) and one longer (2.62 Å) Gd(1)-O(1) bond length. There are eighteen inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(1) atom. The C(1)-N(1) bond length is 1.35 Å. The C(1)-H(1) bond length is 1.08 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(3) and one H(2) atom. The C(2)-C(3) bond length is 1.41 Å. The C(2)-H(2) bond length is 1.09 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(6) atom. The C(3)-C(4) bond length is 1.41 Å. The C(3)-C(6) bond length is 1.45 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(3), one C(5), and one H(3) atom. The C(4)-C(5) bond length is 1.38 Å. The C(4)-H(3) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(4), one N(1), and one H(4) atom. The C(5)-N(1) bond length is 1.36 Å. The C(5)-H(4) bond length is 1.09 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(3) and one H(5) atom. The C(6)-H(5) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a distorted trigonal planar geometry to one N(4) and one H(6) atom. The C(7)-N(4) bond length is 1.37 Å. The C(7)-H(6) bond length is 1.08 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(9) and one H(7) atom. The C(8)-C(9) bond length is 1.41 Å. The C(8)-H(7) bond length is 1.09 Å. In the ninth C site, C(9) is bonded in a trigonal planar geometry to one C(10), one C(12), and one C(8) atom. The C(9)-C(10) bond length is 1.41 Å. The C(9)-C(12) bond length is 1.45 Å. In the tenth C site, C(10) is bonded in a distorted single-bond geometry to one C(11), one C(9), and one H(8) atom. The C(10)-C(11) bond length is 1.38 Å. The C(10)-H(8) bond length is 1.09 Å. In the eleventh C site, C(11) is bonded in a distorted trigonal planar geometry to one C(10), one N(4), and one H(9) atom. The C(11)-N(4) bond length is 1.36 Å. The C(11)-H(9) bond length is 1.09 Å. In the twelfth C site, C(12) is bonded in a distorted single-bond geometry to one C(9) and one H(10) atom. The C(12)-H(10) bond length is 1.09 Å. In the thirteenth C site, C(13) is bonded in a distorted single-bond geometry to one C(14) and one H(11) atom. The C(13)-C(14) bond length is 1.45 Å. The C(13)-H(11) bond length is 1.09 Å. In the fourteenth C site, C(14) is bonded in a trigonal planar geometry to one C(13), one C(15), and one C(17) atom. The C(14)-C(15) bond length is 1.41 Å. The C(14)-C(17) bond length is 1.41 Å. In the fifteenth C site, C(15) is bonded in a distorted single-bond geometry to one C(14), one C(16), and one H(12) atom. The C(15)-C(16) bond length is 1.38 Å. The C(15)-H(12) bond length is 1.09 Å. In the sixteenth C site, C(16) is bonded in a distorted trigonal planar geometry to one C(15), one N(5), and one H(13) atom. The C(16)-N(5) bond length is 1.36 Å. The C(16)-H(13) bond length is 1.08 Å. In the seventeenth C site, C(17) is bonded in a distorted single-bond geometry to one C(14), one C(18), and one H(14) atom. The C(17)-C(18) bond length is 1.38 Å. The C(17)-H(14) bond length is 1.09 Å. In the eighteenth C site, C(18) is bonded in a distorted trigonal planar geometry to one C(17), one N(5), and one H(15) atom. The C(18)-N(5) bond length is 1.37 Å. The C(18)-H(15) bond length is 1.09 Å. There are six inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one C(1), one C(5), and one O(1) atom. The N(1)-O(1) bond length is 1.34 Å. In the second N site, N(2) is bonded in a trigonal planar geometry to one O(2), one O(3), and one O(4) atom. The N(2)-O(2) bond length is 1.27 Å. The N(2)-O(3) bond length is 1.30 Å. The N(2)-O(4) bond length is 1.24 Å. In the third N site, N(3) is bonded in a trigonal planar geometry to one O(5), one O(6), and one O(7) atom. The N(3)-O(5) bond length is 1.27 Å. The N(3)-O(6) bond length is 1.29 Å. The N(3)-O(7) bond length is 1.24 Å. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one C(11), one C(7), and one O(8) atom. The N(4)-O(8) bond length is 1.31 Å. In the fifth N site, N(5) is bonded in a trigonal planar geometry to one C(16), one C(18), and one O(9) atom. The N(5)-O(9) bond length is 1.32 Å. In the sixth N site, N(6) is bonded in a trigonal planar geometry to one O(10), one O(11), and one O(12) atom. The N(6)-O(10) bond length is 1.28 Å. The N(6)-O(11) bond length is 1.28 Å. The N(6)-O(12) bond length is 1.25 Å. There are fifteen inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(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(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(5) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(6) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(7) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(8) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(10) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(11) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(12) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(13) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(15) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(16) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(17) atom. In the fifteenth H site, H(15) is bonded in a single-bond geometry to one C(18) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Gd(1) and one N(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Gd(1) and one N(2) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to one Gd(1) and one N(2) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one N(2) atom. In the fifth O site, O(5) is bonded in a distorted water-like geometry to one Gd(1) and one N(3) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Gd(1) and one N(3) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one N(3) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Gd(1) and one N(4) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Gd(1) and one N(5) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one Gd(1) and one N(6) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one Gd(1) and one N(6) atom. In the twelfth O site, O(12) is bonded in a single-bond geometry to one N(6) atom. Linkers: 3 [O-][n+]1ccc(/C=C/c2cc[n+]([O-])cc2)cc1. Metal clusters: 1 [O][Gd]([O])([O])(O[N+](=O)[O-])(O[N+](=O)[O-])O[N+](=O)[O-].[O][Gd]([O])([O])(O[N+](=O)[O-])(O[N+](=O)[O-])O[N+](=O)[O-]. RCSR code: sql. The MOF has largest included sphere 2.00 A, density 2.08 g/cm3, surface area 3354.39 m2/g, accessible volume 0.09 cm3/g