EuH6(C7O4)2(CH)2 crystallizes in the triclinic P-1 space group. The structure consists of eight 02329_fluka molecules inside a EuH6(C7O4)2 framework. In the EuH6(C7O4)2 framework, there are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(2), one O(3), one O(5), one O(6), one O(8), and one O(9) atom. The Eu(1)-O(1) bond length is 2.50 Å. The Eu(1)-O(11) bond length is 2.44 Å. The Eu(1)-O(2) bond length is 2.36 Å. The Eu(1)-O(3) bond length is 2.35 Å. The Eu(1)-O(5) bond length is 2.35 Å. The Eu(1)-O(6) bond length is 2.40 Å. The Eu(1)-O(8) bond length is 2.45 Å. The Eu(1)-O(9) bond length is 2.47 Å. In the second Eu site, Eu(2) is bonded in a 8-coordinate geometry to one O(10), one O(12), one O(13), one O(14), one O(15), one O(16), one O(4), and one O(7) atom. The Eu(2)-O(10) bond length is 2.50 Å. The Eu(2)-O(12) bond length is 2.34 Å. The Eu(2)-O(13) bond length is 2.37 Å. The Eu(2)-O(14) bond length is 2.46 Å. The Eu(2)-O(15) bond length is 2.47 Å. The Eu(2)-O(16) bond length is 2.34 Å. The Eu(2)-O(4) bond length is 2.38 Å. The Eu(2)-O(7) bond length is 2.49 Å. There are twenty-eight inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(12), one O(12), and one O(2) atom. The C(1)-C(12) bond length is 1.51 Å. The C(1)-O(12) bond length is 1.23 Å. The C(1)-O(2) bond length is 1.26 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(1), and one O(11) atom. The C(2)-C(5) bond length is 1.51 Å. The C(2)-O(1) bond length is 1.24 Å. The C(2)-O(11) bond length is 1.26 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(13), one C(5), and one H(1) atom. The C(3)-C(13) bond length is 1.38 Å. The C(3)-C(5) 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 bent 120 degrees geometry to one C(21), one O(14), and one O(7) atom. The C(4)-C(21) bond length is 1.51 Å. The C(4)-O(14) bond length is 1.26 Å. The C(4)-O(7) bond length is 1.25 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(2), one C(3), and one C(32) atom. The C(5)-C(32) bond length is 1.38 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(15), one C(9), and one H(2) atom. The C(6)-C(15) bond length is 1.39 Å. The C(6)-C(9) bond length is 1.39 Å. The C(6)-H(2) bond length is 0.93 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(24), one O(8), and one O(9) atom. The C(7)-C(24) bond length is 1.50 Å. The C(7)-O(8) bond length is 1.27 Å. The C(7)-O(9) bond length is 1.25 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(15), one O(10), and one O(15) atom. The C(8)-C(15) bond length is 1.50 Å. The C(8)-O(10) bond length is 1.25 Å. The C(8)-O(15) bond length is 1.27 Å. In the ninth C site, C(9) is bonded in a trigonal planar geometry to one C(11), one C(17), and one C(6) atom. The C(9)-C(11) bond length is 1.50 Å. The C(9)-C(17) bond length is 1.39 Å. In the tenth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(13), one O(3), and one O(4) atom. The C(10)-C(13) bond length is 1.52 Å. The C(10)-O(3) bond length is 1.24 Å. The C(10)-O(4) bond length is 1.24 Å. In the eleventh C site, C(11) is bonded in a distorted bent 120 degrees geometry to one C(9), one O(5), and one O(6) atom. The C(11)-O(5) bond length is 1.25 Å. The C(11)-O(6) bond length is 1.24 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one C(1), one C(20), and one C(30) atom. The C(12)-C(20) bond length is 1.39 Å. The C(12)-C(30) bond length is 1.37 Å. In the thirteenth C site, C(13) is bonded in a trigonal planar geometry to one C(10), one C(19), and one C(3) atom. The C(13)-C(19) bond length is 1.40 Å. In the fourteenth C site, C(15) is bonded in a trigonal planar geometry to one C(16), one C(6), and one C(8) atom. The C(15)-C(16) bond length is 1.38 Å. In the fifteenth C site, C(16) is bonded in a distorted single-bond geometry to one C(15) and one H(4) atom. The C(16)-H(4) bond length is 0.93 Å. In the sixteenth C site, C(17) is bonded in a distorted single-bond geometry to one C(9) and one H(5) atom. The C(17)-H(5) bond length is 0.93 Å. In the seventeenth C site, C(18) is bonded in a trigonal planar geometry to one C(22), one C(23), and one C(29) atom. The C(18)-C(22) bond length is 1.39 Å. The C(18)-C(23) bond length is 1.50 Å. The C(18)-C(29) bond length is 1.40 Å. In the eighteenth C site, C(19) is bonded in a distorted single-bond geometry to one C(13) and one H(6) atom. The C(19)-H(6) bond length is 0.93 Å. In the nineteenth C site, C(20) is bonded in a distorted single-bond geometry to one C(12), one C(21), and one H(7) atom. The C(20)-C(21) bond length is 1.39 Å. The C(20)-H(7) bond length is 0.93 Å. In the twentieth C site, C(21) is bonded in a trigonal planar geometry to one C(20), one C(27), and one C(4) atom. The C(21)-C(27) bond length is 1.37 Å. In the twenty-first C site, C(22) is bonded in a distorted single-bond geometry to one C(18), one C(24), and one H(8) atom. The C(22)-C(24) bond length is 1.39 Å. The C(22)-H(8) bond length is 0.93 Å. In the twenty-second C site, C(23) is bonded in a distorted bent 120 degrees geometry to one C(18), one O(13), and one O(16) atom. The C(23)-O(13) bond length is 1.23 Å. The C(23)-O(16) bond length is 1.25 Å. In the twenty-third C site, C(24) is bonded in a trigonal planar geometry to one C(22), one C(25), and one C(7) atom. The C(24)-C(25) bond length is 1.39 Å. In the twenty-fourth C site, C(25) is bonded in a distorted single-bond geometry to one C(24) and one H(9) atom. The C(25)-H(9) bond length is 0.93 Å. In the twenty-fifth C site, C(27) is bonded in a distorted single-bond geometry to one C(21) and one H(11) atom. The C(27)-H(11) bond length is 0.93 Å. In the twenty-sixth C site, C(29) is bonded in a distorted single-bond geometry to one C(18) and one H(13) atom. The C(29)-H(13) bond length is 0.93 Å. In the twenty-seventh C site, C(30) is bonded in a distorted single-bond geometry to one C(12) and one H(14) atom. The C(30)-H(14) bond length is 0.93 Å. In the twenty-eighth C site, C(32) is bonded in a distorted single-bond geometry to one C(5) and one H(16) atom. The C(32)-H(16) bond length is 0.93 Å. There are twelve 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(6) atom. In the third H site, H(4) is bonded in a single-bond geometry to one C(16) atom. In the fourth H site, H(5) is bonded in a single-bond geometry to one C(17) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one C(19) atom. In the sixth H site, H(7) is bonded in a single-bond geometry to one C(20) atom. In the seventh H site, H(8) is bonded in a single-bond geometry to one C(22) atom. In the eighth H site, H(9) is bonded in a single-bond geometry to one C(25) atom. In the ninth H site, H(11) is bonded in a single-bond geometry to one C(27) atom. In the tenth H site, H(13) is bonded in a single-bond geometry to one C(29) atom. In the eleventh H site, H(14) is bonded in a single-bond geometry to one C(30) atom. In the twelfth H site, H(16) is bonded in a single-bond geometry to one C(32) atom. There are sixteen 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(2) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Eu(1) and one C(1) atom. In the third O site, O(3) is bonded in a linear geometry to one Eu(1) and one C(10) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Eu(2) and one C(10) atom. In the fifth O site, O(5) is bonded in a linear geometry to one Eu(1) and one C(11) atom. In the sixth O site, O(6) is bonded in a distorted linear geometry to one Eu(1) and one C(11) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Eu(2) and one C(4) atom. In the eighth O site, O(8) is bonded in an L-shaped geometry to one Eu(1) and one C(7) atom. In the ninth O site, O(9) is bonded in a distorted L-shaped geometry to one Eu(1) and one C(7) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one Eu(2) and one C(8) atom. In the eleventh O site, O(11) is bonded in an L-shaped geometry to one Eu(1) and one C(2) atom. In the twelfth O site, O(12) is bonded in a linear geometry to one Eu(2) and one C(1) atom. In the thirteenth O site, O(13) is bonded in a bent 150 degrees geometry to one Eu(2) and one C(23) atom. In the fourteenth O site, O(14) is bonded in an L-shaped geometry to one Eu(2) and one C(4) atom. In the fifteenth O site, O(15) is bonded in a distorted L-shaped geometry to one Eu(2) and one C(8) atom. In the sixteenth O site, O(16) is bonded in a linear geometry to one Eu(2) and one C(23) atom. Linkers: 8 [O]C(=O)c1cccc(C([O])=O)c1. Metal clusters: 4 [Eu]. RCSR code: ant. The MOF has largest included sphere 3.98 A, density 1.62 g/cm3, surface area 3341.88 m2/g, accessible volume 0.28 cm3/g