ErCuC15H6(NO5)2CH3 crystallizes in the monoclinic P2_1/c space group. The structure consists of four 02329_fluka molecules inside a ErCuC15H6(NO5)2 framework. In the ErCuC15H6(NO5)2 framework, Er(1) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(2), one O(5), one O(6), and two equivalent O(9) atoms. The Er(1)-O(1) bond length is 2.39 Å. The Er(1)-O(10) bond length is 2.41 Å. The Er(1)-O(2) bond length is 2.42 Å. The Er(1)-O(5) bond length is 2.42 Å. The Er(1)-O(6) bond length is 2.47 Å. There is one shorter (2.35 Å) and one longer (2.48 Å) Er(1)-O(9) bond length. Cu(1) is bonded in a rectangular see-saw-like geometry to one N(1), one N(2), one O(4), and one O(7) atom. The Cu(1)-N(1) bond length is 2.00 Å. The Cu(1)-N(2) bond length is 1.99 Å. The Cu(1)-O(4) bond length is 2.00 Å. The Cu(1)-O(7) bond length is 1.97 Å. There are fifteen inequivalent C sites. In the first C site, C(1) is bonded in a 3-coordinate geometry to one C(2), one N(1), and one H(1) atom. The C(1)-C(2) bond length is 1.38 Å. The C(1)-N(1) bond length is 1.33 Å. The C(1)-H(1) bond length is 0.93 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(6) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-C(6) bond length is 1.50 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(7) atom. The C(3)-C(4) bond length is 1.38 Å. The C(3)-C(7) bond length is 1.52 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(3) and one H(2) atom. The C(4)-H(2) bond length is 0.93 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(3) atom. The C(5)-N(1) bond length is 1.35 Å. The C(5)-H(3) bond length is 0.93 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(6)-O(1) bond length is 1.28 Å. The C(6)-O(2) bond length is 1.26 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(3), and one O(4) atom. The C(7)-O(3) bond length is 1.24 Å. The C(7)-O(4) bond length is 1.28 Å. In the eighth C site, C(8) is bonded in a distorted trigonal planar geometry to one C(9), one N(2), and one H(4) atom. The C(8)-C(9) bond length is 1.37 Å. The C(8)-N(2) bond length is 1.34 Å. The C(8)-H(4) 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 1.39 Å. The C(9)-C(14) bond length is 1.51 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one C(11), one C(13), and one C(9) atom. The C(10)-C(11) bond length is 1.39 Å. The C(10)-C(13) bond length is 1.52 Å. In the eleventh C site, C(11) is bonded in a distorted single-bond geometry to one C(10) and one H(5) atom. The C(11)-H(5) bond length is 0.93 Å. In the twelfth C site, C(12) is bonded in a distorted bent 120 degrees geometry to one N(2) and one H(6) atom. The C(12)-N(2) bond length is 1.35 Å. The C(12)-H(6) bond length is 0.93 Å. In the thirteenth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(10), one O(7), and one O(8) atom. The C(13)-O(7) bond length is 1.29 Å. The C(13)-O(8) bond length is 1.21 Å. In the fourteenth C site, C(14) is bonded in a distorted bent 120 degrees geometry to one C(9), one O(5), and one O(6) atom. The C(14)-O(5) bond length is 1.27 Å. The C(14)-O(6) bond length is 1.26 Å. In the fifteenth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one O(10) and one O(9) atom. The C(16)-O(10) bond length is 1.27 Å. The C(16)-O(9) bond length is 1.28 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Cu(1), one C(1), and one C(5) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one Cu(1), one C(12), and one C(8) atom. There are six 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(4) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(5) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(8) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(11) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(12) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Er(1) and one C(6) atom. In the second O site, O(2) is bonded in an L-shaped geometry to one Er(1) and one C(6) atom. In the third O site, O(3) is bonded in a single-bond geometry to one C(7) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Cu(1) and one C(7) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Er(1) and one C(14) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Er(1) and one C(14) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one Cu(1) and one C(13) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one C(13) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to two equivalent Er(1) and one C(16) atom. In the tenth O site, O(10) is bonded in a distorted L-shaped geometry to one Er(1) and one C(16) atom. Linkers: 1 [CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH][N].[CH][N].[CH][N].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]N=[C].[C][C].[C][C].[C][C].[C][C]C([O])=O.[C][N][C].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O][C]=O.[O][Cu].[O][Cu] ,1 O=[C]O[Cu].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH].[CH]=[CH].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C].[C]/[C]=[C]\[C].[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=O.[C]=[C][N].[C]C(=O)O[Cu].[C]C([C])=[C]C([O])=O.[C]C([O])=O.[C][C].[C][C].[C][C].[C][C].[C][C].[C][C].[C][C].[C][C]=O.[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[H].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[N].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O]. Metal clusters: 2 C[C]1O[Er]23(O[C]O2)(O[C]O3)O[C](C)O[Er]23(O[C]O2)(O[C]O3)O1. RCSR code: dia. The MOF has largest included sphere 5.96 A, density 1.46 g/cm3, surface area 3147.39 m2/g, accessible volume 0.38 cm3/g