EuC26H14(N2O3)2C7N2H4 is Indium-derived structured and crystallizes in the monoclinic P2/c space group. The structure is zero-dimensional and consists of four 5-methyl-2-prop-1-en-2-yl-1h-imidazole molecules and two EuC26H14(N2O3)2 clusters. In each EuC26H14(N2O3)2 cluster, Eu(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms. The Eu(1)-O(1) bond length is 2.50 Å. The Eu(1)-O(2) bond length is 2.55 Å. The Eu(1)-O(3) bond length is 2.47 Å. The Eu(1)-O(5) bond length is 2.41 Å. The Eu(1)-O(6) bond length is 2.50 Å. There is one shorter (2.39 Å) and one longer (2.58 Å) Eu(1)-O(4) bond length. There are twenty-six inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(18), one C(22), and one C(7) atom. The C(1)-C(18) bond length is 1.38 Å. The C(1)-C(22) bond length is 1.40 Å. The C(1)-C(7) bond length is 1.48 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(4) and one H(1) atom. The C(2)-C(4) bond length is 1.38 Å. The C(2)-H(1) bond length is 0.93 Å. In the third C site, C(3) is bonded in a bent 120 degrees geometry to one C(4), one O(2), and one O(5) atom. The C(3)-C(4) bond length is 1.48 Å. The C(3)-O(2) bond length is 1.27 Å. The C(3)-O(5) bond length is 1.27 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(2), one C(25), and one C(3) atom. The C(4)-C(25) bond length is 1.42 Å. In the fifth C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(1), and one O(3) atom. The C(7)-O(1) bond length is 1.26 Å. The C(7)-O(3) bond length is 1.27 Å. In the sixth C site, C(8) is bonded in a distorted trigonal planar geometry to one C(11), one C(23), and one N(6) atom. The C(8)-C(11) bond length is 1.39 Å. The C(8)-C(23) bond length is 1.40 Å. The C(8)-N(6) bond length is 1.39 Å. In the seventh C site, C(9) is bonded in a distorted single-bond geometry to one C(11), one C(15), and one H(5) atom. The C(9)-C(11) bond length is 1.38 Å. The C(9)-C(15) bond length is 1.37 Å. The C(9)-H(5) bond length is 0.93 Å. In the eighth C site, C(10) is bonded in a distorted single-bond geometry to one C(18), one C(20), and one N(2) atom. The C(10)-C(18) bond length is 1.39 Å. The C(10)-C(20) bond length is 1.38 Å. The C(10)-N(2) bond length is 1.38 Å. In the ninth C site, C(11) is bonded in a distorted single-bond geometry to one C(8), one C(9), and one N(5) atom. The C(11)-N(5) bond length is 1.37 Å. In the tenth C site, C(12) is bonded in a trigonal planar geometry to one C(17), one C(28), and one C(32) atom. The C(12)-C(17) bond length is 1.49 Å. The C(12)-C(28) bond length is 1.38 Å. The C(12)-C(32) bond length is 1.36 Å. In the eleventh C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(15), one O(4), and one O(6) atom. The C(13)-C(15) bond length is 1.48 Å. The C(13)-O(4) bond length is 1.28 Å. The C(13)-O(6) bond length is 1.26 Å. In the twelfth C site, C(15) is bonded in a trigonal planar geometry to one C(13), one C(21), and one C(9) atom. The C(15)-C(21) bond length is 1.41 Å. In the thirteenth C site, C(17) is bonded in a distorted trigonal planar geometry to one C(12), one N(2), and one N(4) atom. The C(17)-N(2) bond length is 1.34 Å. The C(17)-N(4) bond length is 1.34 Å. In the fourteenth C site, C(18) is bonded in a distorted single-bond geometry to one C(1), one C(10), and one H(6) atom. The C(18)-H(6) bond length is 0.93 Å. In the fifteenth C site, C(19) is bonded in a distorted single-bond geometry to one C(27) and one H(7) atom. The C(19)-C(27) bond length is 1.38 Å. The C(19)-H(7) bond length is 0.93 Å. In the sixteenth C site, C(20) is bonded in a distorted trigonal planar geometry to one C(10), one C(26), and one N(4) atom. The C(20)-C(26) bond length is 1.39 Å. The C(20)-N(4) bond length is 1.38 Å. In the seventeenth C site, C(21) is bonded in a distorted single-bond geometry to one C(15) and one H(8) atom. The C(21)-H(8) bond length is 0.93 Å. In the eighteenth C site, C(22) is bonded in a distorted single-bond geometry to one C(1) and one H(9) atom. The C(22)-H(9) bond length is 0.93 Å. In the nineteenth C site, C(23) is bonded in a distorted single-bond geometry to one C(8) and one H(10) atom. The C(23)-H(10) bond length is 0.93 Å. In the twentieth C site, C(24) is bonded in a distorted trigonal planar geometry to one C(27), one N(5), and one N(6) atom. The C(24)-C(27) bond length is 1.49 Å. The C(24)-N(5) bond length is 1.32 Å. The C(24)-N(6) bond length is 1.37 Å. In the twenty-first C site, C(25) is bonded in a distorted single-bond geometry to one C(4) and one H(11) atom. The C(25)-H(11) bond length is 0.93 Å. In the twenty-second C site, C(26) is bonded in a distorted single-bond geometry to one C(20) and one H(12) atom. The C(26)-H(12) bond length is 0.93 Å. In the twenty-third C site, C(27) is bonded in a trigonal planar geometry to one C(19), one C(24), and one C(33) atom. The C(27)-C(33) bond length is 1.39 Å. In the twenty-fourth C site, C(28) is bonded in a distorted single-bond geometry to one C(12) and one H(13) atom. The C(28)-H(13) bond length is 0.93 Å. In the twenty-fifth C site, C(32) is bonded in a distorted single-bond geometry to one C(12) and one H(16) atom. The C(32)-H(16) bond length is 0.93 Å. In the twenty-sixth C site, C(33) is bonded in a distorted single-bond geometry to one C(27) and one H(17) atom. The C(33)-H(17) bond length is 0.93 Å. There are four inequivalent N sites. In the first N site, N(6) is bonded in a water-like geometry to one C(24) and one C(8) atom. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one C(10), one C(17), and one H(2) atom. The N(2)-H(2) bond length is 0.86 Å. In the third N site, N(4) is bonded in a water-like geometry to one C(17) and one C(20) atom. In the fourth N site, N(5) is bonded in a distorted trigonal planar geometry to one C(11), one C(24), and one H(4) atom. The N(5)-H(4) bond length is 0.86 Å. There are fourteen inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one N(2) atom. In the third H site, H(4) is bonded in a single-bond geometry to one N(5) atom. In the fourth H site, H(5) is bonded in a single-bond geometry to one C(9) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one C(18) atom. In the sixth H site, H(7) is bonded in a single-bond geometry to one C(19) atom. In the seventh H site, H(8) is bonded in a single-bond geometry to one C(21) atom. In the eighth H site, H(9) is bonded in a single-bond geometry to one C(22) atom. In the ninth H site, H(10) is bonded in a single-bond geometry to one C(23) atom. In the tenth H site, H(11) is bonded in a single-bond geometry to one C(25) atom. In the eleventh H site, H(12) is bonded in a single-bond geometry to one C(26) atom. In the twelfth H site, H(13) is bonded in a single-bond geometry to one C(28) atom. In the thirteenth H site, H(16) is bonded in a single-bond geometry to one C(32) atom. In the fourteenth H site, H(17) is bonded in a single-bond geometry to one C(33) atom. There are six 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(7) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Eu(1) and one C(3) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Eu(1) and one C(7) atom. In the fourth O site, O(5) is bonded in a distorted water-like geometry to one Eu(1) and one C(3) atom. In the fifth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Eu(1) and one C(13) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Eu(1) and one C(13) atom. Linkers: 4 [O]C(=O)c1ccc2nc(-c3ccc(-c4nc5ccc(C([O])=O)cc5[nH]4)cc3)[nH]c2c1 ,2 [O]C(=O)c1ccc2[nH]c(-c3ccc(-c4nc5cc(C([O])=O)ccc5[nH]4)cc3)nc2c1. Metal clusters: 2 [C]1O[Eu]23(O1)(O[C]O2)O[C]O[Eu]12(O[C]O1)(O[C]O2)O[C]O3. RCSR code: cds. The MOF has largest included sphere 9.38 A, density 1.10 g/cm3, surface area 4020.60 m2/g, accessible volume 0.45 cm3/g