NaEu3C54(N6O13)2 crystallizes in the monoclinic P2_1/c space group. Na(1) is bonded in a distorted octahedral geometry to one O(10), one O(16), one O(17), one O(25), one O(26), and one O(5) atom. The Na(1)-O(10) bond length is 2.40 Å. The Na(1)-O(16) bond length is 2.39 Å. The Na(1)-O(17) bond length is 2.68 Å. The Na(1)-O(25) bond length is 2.52 Å. The Na(1)-O(26) bond length is 2.56 Å. The Na(1)-O(5) bond length is 2.89 Å. There are three inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 8-coordinate geometry to one O(11), one O(15), one O(16), one O(22), one O(23), one O(24), one O(5), and one O(6) atom. The Eu(1)-O(11) bond length is 2.35 Å. The Eu(1)-O(15) bond length is 2.47 Å. The Eu(1)-O(16) bond length is 2.57 Å. The Eu(1)-O(22) bond length is 2.39 Å. The Eu(1)-O(23) bond length is 2.42 Å. The Eu(1)-O(24) bond length is 2.51 Å. The Eu(1)-O(5) bond length is 2.43 Å. The Eu(1)-O(6) bond length is 2.55 Å. In the second Eu site, Eu(2) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(13), one O(17), one O(18), one O(2), one O(3), and one O(9) atom. The Eu(2)-O(1) bond length is 2.46 Å. The Eu(2)-O(10) bond length is 2.52 Å. The Eu(2)-O(13) bond length is 2.33 Å. The Eu(2)-O(17) bond length is 2.44 Å. The Eu(2)-O(18) bond length is 2.49 Å. The Eu(2)-O(2) bond length is 2.44 Å. The Eu(2)-O(3) bond length is 2.38 Å. The Eu(2)-O(9) bond length is 2.49 Å. In the third Eu site, Eu(3) is bonded in a 3-coordinate geometry to one O(19), one O(7), and one O(8) atom. The Eu(3)-O(19) bond length is 2.34 Å. The Eu(3)-O(7) bond length is 2.45 Å. The Eu(3)-O(8) bond length is 2.44 Å. There are fifty-four 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 1.52 Å. The C(1)-O(1) bond length is 1.24 Å. The C(1)-O(2) bond length is 1.28 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(7) atom. The C(2)-C(3) bond length is 1.36 Å. The C(2)-C(7) bond length is 1.48 Å. In the third C site, C(3) is bonded in a bent 120 degrees geometry to one C(2) and one C(4) atom. The C(3)-C(4) bond length is 1.38 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(3), one C(5), and one C(8) atom. The C(4)-C(5) bond length is 1.41 Å. The C(4)-C(8) bond length is 1.53 Å. In the fifth C site, C(5) is bonded in a bent 120 degrees geometry to one C(4) and one C(6) atom. The C(5)-C(6) bond length is 1.35 Å. In the sixth C site, C(6) is bonded in a distorted trigonal planar geometry to one C(5), one C(7), and one N(6) atom. The C(6)-C(7) bond length is 1.45 Å. The C(6)-N(6) bond length is 1.47 Å. In the seventh C site, C(7) is bonded in a water-like geometry to one C(2) and one C(6) atom. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(3), and one O(4) atom. The C(8)-O(3) bond length is 1.24 Å. The C(8)-O(4) bond length is 1.26 Å. In the ninth C site, C(9) is bonded in a trigonal planar geometry to one N(1), one N(3), and one N(6) atom. The C(9)-N(1) bond length is 1.33 Å. The C(9)-N(3) bond length is 1.37 Å. The C(9)-N(6) bond length is 1.32 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one N(2), one N(3), and one N(5) atom. The C(10)-N(2) bond length is 1.34 Å. The C(10)-N(3) bond length is 1.37 Å. The C(10)-N(5) bond length is 1.37 Å. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one N(1), one N(2), and one N(4) atom. The C(11)-N(1) bond length is 1.36 Å. The C(11)-N(2) bond length is 1.34 Å. The C(11)-N(4) bond length is 1.40 Å. In the twelfth C site, C(12) is bonded in a distorted single-bond geometry to one C(13), one C(17), and one N(5) atom. The C(12)-C(13) bond length is 1.43 Å. The C(12)-C(17) bond length is 1.41 Å. The C(12)-N(5) bond length is 1.40 Å. In the thirteenth C site, C(13) is bonded in a bent 120 degrees geometry to one C(12) and one C(14) atom. The C(13)-C(14) bond length is 1.37 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(19) atom. The C(14)-C(15) bond length is 1.42 Å. The C(14)-C(19) bond length is 1.49 Å. In the fifteenth C site, C(15) is bonded in a bent 120 degrees geometry to one C(14) and one C(16) atom. The C(15)-C(16) bond length is 1.44 Å. In the sixteenth C site, C(16) is bonded in a trigonal planar geometry to one C(15), one C(17), and one C(18) atom. The C(16)-C(17) bond length is 1.41 Å. The C(16)-C(18) bond length is 1.50 Å. In the seventeenth C site, C(17) is bonded in a bent 120 degrees geometry to one C(12) and one C(16) atom. In the eighteenth C site, C(18) is bonded in a bent 120 degrees geometry to one C(16), one O(5), and one O(6) atom. The C(18)-O(5) bond length is 1.24 Å. The C(18)-O(6) bond length is 1.28 Å. In the nineteenth C site, C(19) is bonded in a distorted bent 120 degrees geometry to one C(14), one O(7), and one O(8) atom. The C(19)-O(7) bond length is 1.25 Å. The C(19)-O(8) bond length is 1.26 Å. In the twentieth C site, C(20) is bonded in a distorted trigonal planar geometry to one C(21), one C(25), and one N(4) atom. The C(20)-C(21) bond length is 1.39 Å. The C(20)-C(25) bond length is 1.44 Å. The C(20)-N(4) bond length is 1.43 Å. In the twenty-first C site, C(21) is bonded in a bent 120 degrees geometry to one C(20) and one C(22) atom. The C(21)-C(22) bond length is 1.38 Å. In the twenty-second C site, C(22) is bonded in a trigonal planar geometry to one C(21), one C(23), and one C(27) atom. The C(22)-C(23) bond length is 1.40 Å. The C(22)-C(27) bond length is 1.56 Å. In the twenty-third C site, C(23) is bonded in a bent 120 degrees geometry to one C(22) and one C(24) atom. The C(23)-C(24) bond length is 1.41 Å. In the twenty-fourth C site, C(24) is bonded in a trigonal planar geometry to one C(23), one C(25), and one C(26) atom. The C(24)-C(25) bond length is 1.36 Å. The C(24)-C(26) bond length is 1.53 Å. In the twenty-fifth C site, C(25) is bonded in a bent 120 degrees geometry to one C(20) and one C(24) atom. In the twenty-sixth C site, C(26) is bonded in a bent 120 degrees geometry to one C(24), one O(10), and one O(9) atom. The C(26)-O(10) bond length is 1.25 Å. The C(26)-O(9) bond length is 1.23 Å. In the twenty-seventh C site, C(27) is bonded in a distorted bent 120 degrees geometry to one C(22), one O(11), and one O(12) atom. The C(27)-O(11) bond length is 1.23 Å. The C(27)-O(12) bond length is 1.30 Å. In the twenty-eighth C site, C(28) is bonded in a distorted bent 120 degrees geometry to one C(29), one O(13), and one O(14) atom. The C(28)-C(29) bond length is 1.49 Å. The C(28)-O(13) bond length is 1.36 Å. The C(28)-O(14) bond length is 1.25 Å. In the twenty-ninth C site, C(29) is bonded in a trigonal planar geometry to one C(28), one C(30), and one C(34) atom. The C(29)-C(30) bond length is 1.35 Å. The C(29)-C(34) bond length is 1.38 Å. In the thirtieth C site, C(30) is bonded in a bent 120 degrees geometry to one C(29) and one C(31) atom. The C(30)-C(31) bond length is 1.44 Å. In the thirty-first C site, C(31) is bonded in a trigonal planar geometry to one C(30), one C(32), and one C(35) atom. The C(31)-C(32) bond length is 1.39 Å. The C(31)-C(35) bond length is 1.51 Å. In the thirty-second C site, C(32) is bonded in a bent 120 degrees geometry to one C(31) and one C(33) atom. The C(32)-C(33) bond length is 1.37 Å. In the thirty-third C site, C(33) is bonded in a distorted trigonal planar geometry to one C(32), one C(34), and one N(12) atom. The C(33)-C(34) bond length is 1.46 Å. The C(33)-N(12) bond length is 1.37 Å. In the thirty-fourth C site, C(34) is bonded in a bent 120 degrees geometry to one C(29) and one C(33) atom. In the thirty-fifth C site, C(35) is bonded in a bent 120 degrees geometry to one C(31), one O(15), and one O(16) atom. The C(35)-O(15) bond length is 1.24 Å. The C(35)-O(16) bond length is 1.24 Å. In the thirty-sixth C site, C(36) is bonded in a distorted trigonal planar geometry to one N(12), one N(7), and one N(9) atom. The C(36)-N(12) bond length is 1.37 Å. The C(36)-N(7) bond length is 1.36 Å. The C(36)-N(9) bond length is 1.37 Å. In the thirty-seventh C site, C(37) is bonded in a trigonal planar geometry to one N(11), one N(8), and one N(9) atom. The C(37)-N(11) bond length is 1.35 Å. The C(37)-N(8) bond length is 1.33 Å. The C(37)-N(9) bond length is 1.37 Å. In the thirty-eighth C site, C(38) is bonded in a trigonal planar geometry to one N(10), one N(7), and one N(8) atom. The C(38)-N(10) bond length is 1.33 Å. The C(38)-N(7) bond length is 1.37 Å. The C(38)-N(8) bond length is 1.35 Å. In the thirty-ninth C site, C(39) is bonded in a distorted trigonal planar geometry to one C(40), one C(44), and one N(11) atom. The C(39)-C(40) bond length is 1.41 Å. The C(39)-C(44) bond length is 1.43 Å. The C(39)-N(11) bond length is 1.41 Å. In the fortieth C site, C(40) is bonded in a bent 120 degrees geometry to one C(39) and one C(41) atom. The C(40)-C(41) bond length is 1.43 Å. In the forty-first C site, C(41) is bonded in a trigonal planar geometry to one C(40), one C(42), and one C(46) atom. The C(41)-C(42) bond length is 1.34 Å. The C(41)-C(46) bond length is 1.47 Å. In the forty-second C site, C(42) is bonded in a bent 120 degrees geometry to one C(41) and one C(43) atom. The C(42)-C(43) bond length is 1.40 Å. In the forty-third C site, C(43) is bonded in a trigonal planar geometry to one C(42), one C(44), and one C(45) atom. The C(43)-C(44) bond length is 1.37 Å. The C(43)-C(45) bond length is 1.51 Å. In the forty-fourth C site, C(44) is bonded in a bent 120 degrees geometry to one C(39) and one C(43) atom. In the forty-fifth C site, C(45) is bonded in a bent 120 degrees geometry to one C(43), one O(17), and one O(18) atom. The C(45)-O(17) bond length is 1.23 Å. The C(45)-O(18) bond length is 1.23 Å. In the forty-sixth C site, C(46) is bonded in a distorted bent 120 degrees geometry to one C(41), one O(19), and one O(20) atom. The C(46)-O(19) bond length is 1.31 Å. The C(46)-O(20) bond length is 1.23 Å. In the forty-seventh C site, C(47) is bonded in a distorted trigonal planar geometry to one C(48), one C(52), and one N(10) atom. The C(47)-C(48) bond length is 1.39 Å. The C(47)-C(52) bond length is 1.43 Å. The C(47)-N(10) bond length is 1.42 Å. In the forty-eighth C site, C(48) is bonded in a bent 120 degrees geometry to one C(47) and one C(49) atom. The C(48)-C(49) bond length is 1.37 Å. In the forty-ninth C site, C(49) is bonded in a trigonal planar geometry to one C(48), one C(50), and one C(54) atom. The C(49)-C(50) bond length is 1.43 Å. The C(49)-C(54) bond length is 1.51 Å. In the fiftieth C site, C(50) is bonded in a bent 120 degrees geometry to one C(49) and one C(51) atom. The C(50)-C(51) bond length is 1.39 Å. In the fifty-first C site, C(51) is bonded in a trigonal planar geometry to one C(50), one C(52), and one C(53) atom. The C(51)-C(52) bond length is 1.39 Å. The C(51)-C(53) bond length is 1.51 Å. In the fifty-second C site, C(52) is bonded in a bent 120 degrees geometry to one C(47) and one C(51) atom. In the fifty-third C site, C(53) is bonded in a distorted bent 120 degrees geometry to one C(51), one O(21), and one O(22) atom. The C(53)-O(21) bond length is 1.31 Å. The C(53)-O(22) bond length is 1.24 Å. In the fifty-fourth C site, C(54) is bonded in a bent 120 degrees geometry to one C(49), one O(23), and one O(24) atom. The C(54)-O(23) bond length is 1.27 Å. The C(54)-O(24) bond length is 1.21 Å. There are twelve inequivalent N sites. In the first N site, N(1) is bonded in a water-like geometry to one C(11) and one C(9) atom. In the second N site, N(2) is bonded in a water-like geometry to one C(10) and one C(11) atom. In the third N site, N(3) is bonded in a bent 120 degrees geometry to one C(10) and one C(9) atom. In the fourth N site, N(4) is bonded in a distorted bent 120 degrees geometry to one C(11) and one C(20) atom. In the fifth N site, N(5) is bonded in a bent 120 degrees geometry to one C(10) and one C(12) atom. In the sixth N site, N(6) is bonded in a distorted bent 120 degrees geometry to one C(6) and one C(9) atom. In the seventh N site, N(7) is bonded in a bent 120 degrees geometry to one C(36) and one C(38) atom. In the eighth N site, N(8) is bonded in a bent 120 degrees geometry to one C(37) and one C(38) atom. In the ninth N site, N(9) is bonded in a bent 120 degrees geometry to one C(36) and one C(37) atom. In the tenth N site, N(10) is bonded in a bent 120 degrees geometry to one C(38) and one C(47) atom. In the eleventh N site, N(11) is bonded in a bent 120 degrees geometry to one C(37) and one C(39) atom. In the twelfth N site, N(12) is bonded in a bent 120 degrees geometry to one C(33) and one C(36) atom. There are twenty-six inequivalent O sites. In the first O site, O(1) is bonded in a distorted L-shaped geometry to one Eu(2) and one C(1) atom. In the second O site, O(2) is bonded in a distorted L-shaped geometry to one Eu(2) and one C(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Eu(2) and one C(8) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one C(8) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Na(1), one Eu(1), and one C(18) atom. In the sixth O site, O(6) is bonded in a distorted L-shaped geometry to one Eu(1) and one C(18) atom. In the seventh O site, O(7) is bonded in a distorted L-shaped geometry to one Eu(3) and one C(19) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one Eu(3) and one C(19) atom. In the ninth O site, O(9) is bonded in a distorted L-shaped geometry to one Eu(2) and one C(26) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Na(1), one Eu(2), and one C(26) atom. In the eleventh O site, O(11) is bonded in a bent 150 degrees geometry to one Eu(1) and one C(27) atom. In the twelfth O site, O(12) is bonded in a single-bond geometry to one C(27) atom. In the thirteenth O site, O(13) is bonded in a bent 150 degrees geometry to one Eu(2) and one C(28) atom. In the fourteenth O site, O(14) is bonded in a single-bond geometry to one C(28) atom. In the fifteenth O site, O(15) is bonded in a distorted L-shaped geometry to one Eu(1) and one C(35) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Na(1), one Eu(1), and one C(35) atom. In the seventeenth O site, O(17) is bonded in a distorted single-bond geometry to one Na(1), one Eu(2), and one C(45) atom. In the eighteenth O site, O(18) is bonded in a distorted L-shaped geometry to one Eu(2) and one C(45) atom. In the nineteenth O site, O(19) is bonded in a bent 150 degrees geometry to one Eu(3) and one C(46) atom. In the twentieth O site, O(20) is bonded in a single-bond geometry to one C(46) atom. In the twenty-first O site, O(21) is bonded in a single-bond geometry to one C(53) atom. In the twenty-second O site, O(22) is bonded in a bent 150 degrees geometry to one Eu(1) and one C(53) atom. In the twenty-third O site, O(23) is bonded in a distorted L-shaped geometry to one Eu(1) and one C(54) atom. In the twenty-fourth O site, O(24) is bonded in a distorted L-shaped geometry to one Eu(1) and one C(54) atom. In the twenty-fifth O site, O(25) is bonded in a distorted L-shaped geometry to one Na(1) and one O(26) atom. The O(25)-O(26) bond length is 1.24 Å. In the twenty-sixth O site, O(26) is bonded in a 2-coordinate geometry to one Na(1) and one O(25) atom. Linkers: 2 O=C(C1=[C]C(=[C]C(=[C]1)C(=O)[O])[N][C]1=[N]=[C](=[N]=[C](=[N]=1)[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O])[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O])O[Eu]1O[C](O1)C1=[C]C(=[C]C(=[C]1)[N][C]1=[N]=[C](=[N]=[C](=[N]=1)[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O])[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O])C(=O)[O] ,2 O=C(C1=[C]C(=[C]C(=[C]1)[N][C]1=[N]=[C](=[N]=[C](=[N]=1)[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O])[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O])C(=O)[O])O[Eu]1O[C](O1)C1=[C]C(=[C]C(=[C]1)C(=O)[O])[N][C]1=[N]=[C](=[N]=[C](=[N]=1)[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O])[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O] ,1 O=C(C1=[C]C(=[C]C(=[C]1)[N][C]1=[N]=[C](=[N]=[C](=[N]=1)[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O])[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O])C(=O)[O])O[Eu]1O[C](O1)C1=[C]C(=[C]C(=[C]1)C(=O)[O])[N][C]1=[N]=[C](=[N]=[C](=[N]=1)[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O])[N]C1=[C]C(=[C][C]=[C]1)C(=O)[O] ,1 O=C(C1=[C]C(=[C]C(=[C]1)[N][C]1=[N]=[C](=[N]=[C](=[N]=1)[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O])[N]C1=[C]C(=[C][C]=[C]1)C(=O)[O])C(=O)[O])O[Eu]1O[C](O1)C1=[C]C(=[C]C(=[C]1)C(=O)[O])[N][C]1=[N]=[C](=[N]=[C](=[N]=1)[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O])[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O] ,1 O=C(C1=[C]C(=[C]C(=[C]1)C(=O)[O])[N][C]1=[N]=[C](=[N]=[C](=[N]=1)[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O])[N]C1=[C][C]=[C]C(=[C]1)C(=O)[O])O[Eu]1O[C](O1)C1=[C]C(=[C]C(=[C]1)[N][C]1=[N]=[C](=[N]=[C](=[N]=1)[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O])[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O])C(=O)[O] ,1 O=C(C1=[C]C(=[C]C(=[C]1)C(=O)[O])[N][C]1=[N]=[C](=[N]=[C](=[N]=1)[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O])[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O])O[Eu]1O[C](O1)C1=[C]C(=[C]C(=[C]1)[N][C]1=[N]=[C](=[N]=[C](=[N]=1)[N]C1=[C]C(=[C]C(=[C]1)C(=O)[O])C(=O)[O])[N]C1=[C][C]=[C]C(=[C]1)C(=O)[O])C(=O)[O]. Metal clusters: 4 O=[C]O[Eu]1(O[C]=O)(O[C]=O)(O[C]=O)O[C]O1.[O][C]O[Eu]1(O[C][O])(O[C]O[Na])(O[C]=O)O[C]O1.[O][O]. The MOF has largest included sphere 12.53 A, density 0.67 g/cm3, surface area 3527.36 m2/g, accessible volume 1.17 cm3/g