EuC18N4H10O7CH crystallizes in the triclinic P-1 space group. The structure consists of two 02329_fluka molecules inside a EuC18N4H10O7 framework. In the EuC18N4H10O7 framework, Eu(1) is bonded in a 9-coordinate geometry to one N(4), one O(1), one O(2), one O(3), one O(5), one O(6), one O(7), and two equivalent O(4) atoms. The Eu(1)-N(4) bond length is 2.53 Å. The Eu(1)-O(1) bond length is 2.48 Å. The Eu(1)-O(2) bond length is 2.46 Å. The Eu(1)-O(3) bond length is 2.42 Å. The Eu(1)-O(5) bond length is 2.38 Å. The Eu(1)-O(6) bond length is 2.38 Å. The Eu(1)-O(7) bond length is 2.49 Å. There is one shorter (2.34 Å) and one longer (2.69 Å) Eu(1)-O(4) bond length. There are eighteen inequivalent C sites. In the first C site, C(1) is bonded in a bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(1)-C(2) bond length is 1.50 Å. The C(1)-O(1) bond length is 1.27 Å. The C(1)-O(2) bond length is 1.25 Å. In the second C site, C(2) is bonded in a distorted trigonal pyramidal geometry to one C(1), one C(3), one C(4), and one H(10) atom. The C(2)-C(3) bond length is 1.38 Å. The C(2)-C(4) bond length is 1.39 Å. The C(2)-H(10) bond length is 1.78 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(4), and one H(1) atom. The C(3)-C(4) bond length is 1.39 Å. The C(3)-H(1) bond length is 0.93 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(2), one C(3), and one N(1) atom. The C(4)-N(1) bond length is 1.28 Å. In the fifth C site, C(5) is bonded in a bent 120 degrees geometry to one C(6), one O(3), and one O(4) atom. The C(5)-C(6) bond length is 1.49 Å. The C(5)-O(3) bond length is 1.26 Å. The C(5)-O(4) bond length is 1.27 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(5), one C(7), and one C(8) atom. The C(6)-C(7) bond length is 1.40 Å. The C(6)-C(8) bond length is 1.40 Å. In the seventh C site, C(7) is bonded in a distorted trigonal planar geometry to one C(6), one C(8), and one N(2) atom. The C(7)-C(8) bond length is 1.38 Å. The C(7)-N(2) bond length is 1.37 Å. In the eighth C site, C(8) is bonded in a single-bond geometry to one C(6), one C(7), and one H(2) atom. The C(8)-H(2) bond length is 0.93 Å. In the ninth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(10), one O(5), and one O(6) atom. The C(9)-C(10) bond length is 1.50 Å. The C(9)-O(5) bond length is 1.25 Å. The C(9)-O(6) bond length is 1.26 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one C(11), one C(12), and one C(9) atom. The C(10)-C(11) bond length is 1.41 Å. The C(10)-C(12) bond length is 1.40 Å. In the eleventh C site, C(11) is bonded in a distorted single-bond geometry to one C(10), one C(12), and one H(3) atom. The C(11)-C(12) bond length is 1.36 Å. The C(11)-H(3) bond length is 0.93 Å. In the twelfth C site, C(12) is bonded in a distorted trigonal planar geometry to one C(10), one C(11), and one N(3) atom. The C(12)-N(3) bond length is 1.44 Å. In the thirteenth C site, C(13) is bonded in a distorted trigonal non-coplanar geometry to one C(14), one H(4), one H(5), and one O(7) atom. The C(13)-C(14) bond length is 1.50 Å. The C(13)-H(4) bond length is 0.97 Å. The C(13)-H(5) bond length is 0.97 Å. The C(13)-O(7) bond length is 1.35 Å. In the fourteenth C site, C(14) is bonded in a distorted trigonal planar geometry to one C(13), one C(15), and one N(4) atom. The C(14)-C(15) bond length is 1.42 Å. The C(14)-N(4) bond length is 1.34 Å. In the fifteenth C site, C(15) is bonded in a trigonal planar geometry to one C(14), one C(16), and one C(19) atom. The C(15)-C(16) bond length is 1.34 Å. The C(15)-C(19) bond length is 1.50 Å. In the sixteenth C site, C(16) is bonded in a distorted single-bond geometry to one C(15) and one H(6) atom. The C(16)-H(6) bond length is 0.93 Å. In the seventeenth C site, C(18) is bonded in a distorted bent 120 degrees geometry to one N(4) and one H(8) atom. The C(18)-N(4) bond length is 1.32 Å. The C(18)-H(8) bond length is 0.93 Å. In the eighteenth C site, C(19) is bonded in a trigonal non-coplanar geometry to one C(15), one H(10), one H(11), and one H(9) atom. The C(19)-H(10) bond length is 0.96 Å. The C(19)-H(11) bond length is 0.96 Å. The C(19)-H(9) bond length is 0.96 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a single-bond geometry to one C(4) atom. In the second N site, N(2) is bonded in a single-bond geometry to one C(7) atom. In the third N site, N(3) is bonded in a single-bond geometry to one C(12) atom. In the fourth N site, N(4) is bonded in a distorted trigonal planar geometry to one Eu(1), one C(14), and one C(18) atom. There are ten inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(8) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(11) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(13) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(13) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(16) atom. In the seventh H site, H(8) is bonded in a single-bond geometry to one C(18) atom. In the eighth H site, H(9) is bonded in a single-bond geometry to one C(19) atom. In the ninth H site, H(10) is bonded in a single-bond geometry to one C(19) and one C(2) atom. In the tenth H site, H(11) is bonded in a single-bond geometry to one C(19) atom. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Eu(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Eu(1) and one C(1) atom. In the third O site, O(3) is bonded in a water-like geometry to one Eu(1) and one C(5) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Eu(1) and one C(5) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Eu(1) and one C(9) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Eu(1) and one C(9) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Eu(1) and one C(13) atom. Linkers: 3 [N]c1cc(C([O])=O)c([N])cc1C([O])=O. Metal clusters: 2 [Eu]. RCSR code: xah. The MOF has largest included sphere 6.31 A, density 1.35 g/cm3, surface area 3284.98 m2/g, accessible volume 0.38 cm3/g