GdC38NH20(O3Cl)3(CH)3(CH3)3 crystallizes in the orthorhombic C222_1 space group. The structure consists of twenty-four 02329_fluka molecules and twenty-four 02329_fluka molecules inside a GdC38NH20(O3Cl)3 framework. In the GdC38NH20(O3Cl)3 framework, Gd(1) is bonded in a 7-coordinate geometry to one N(1), one O(1), one O(2), one O(4), one O(5), one O(7), and one O(8) atom. The Gd(1)-N(1) bond length is 2.54 Å. The Gd(1)-O(1) bond length is 2.44 Å. The Gd(1)-O(2) bond length is 2.48 Å. The Gd(1)-O(4) bond length is 2.37 Å. The Gd(1)-O(5) bond length is 2.30 Å. The Gd(1)-O(7) bond length is 2.26 Å. The Gd(1)-O(8) bond length is 2.39 Å. There are thirty-eight inequivalent C sites. In the first C site, C(17) is bonded in a distorted trigonal non-coplanar geometry to one H(10), one H(11), and one O(3) atom. The C(17)-H(10) bond length is 0.97 Å. The C(17)-H(11) bond length is 0.97 Å. The C(17)-O(3) bond length is 1.44 Å. In the second C site, C(1) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(1,5) atom. The C(1)-N(1) bond length is 1.39 Å. The C(1)-H(1,5) bond length is 0.93 Å. In the third C site, C(19) is bonded in a trigonal planar geometry to one C(20), one C(28), and one C(6) atom. The C(19)-C(20) bond length is 1.39 Å. The C(19)-C(28) bond length is 1.41 Å. The C(19)-C(6) bond length is 1.50 Å. In the fourth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(1,5) atom. The C(5)-N(1) bond length is 1.39 Å. The C(5)-H(1,5) bond length is 0.93 Å. In the fifth C site, C(6) is bonded in a trigonal planar geometry to one C(15), one C(19), and one C(7) atom. The C(6)-C(15) bond length is 1.42 Å. The C(6)-C(7) bond length is 1.38 Å. In the sixth C site, C(7) is bonded in a distorted single-bond geometry to one C(6) and one O(3) atom. The C(7)-O(3) bond length is 1.37 Å. In the seventh C site, C(8) is bonded in a distorted single-bond geometry to one C(9) and one H(6) atom. The C(8)-C(9) bond length is 1.38 Å. The C(8)-H(6) bond length is 0.93 Å. In the eighth C site, C(12) is bonded in a trigonal planar geometry to one C(11), one C(13), and one Cl(1) atom. The C(12)-C(11) bond length is 1.38 Å. The C(12)-C(13) bond length is 1.39 Å. The C(12)-Cl(1) bond length is 1.75 Å. In the ninth C site, C(13) is bonded in a distorted single-bond geometry to one C(12) and one H(8) atom. The C(13)-H(8) bond length is 0.93 Å. In the tenth C site, C(14) is bonded in a distorted single-bond geometry to one C(15) and one H(9) atom. The C(14)-C(15) bond length is 1.42 Å. The C(14)-H(9) bond length is 0.93 Å. In the eleventh C site, C(20) is bonded in a distorted single-bond geometry to one C(19) and one O(6) atom. The C(20)-O(6) bond length is 1.38 Å. In the twelfth C site, C(21) is bonded in a distorted single-bond geometry to one C(22) and one H(15) atom. The C(21)-C(22) bond length is 1.35 Å. The C(21)-H(15) bond length is 0.93 Å. In the thirteenth C site, C(22) is bonded in a trigonal planar geometry to one C(21), one C(23), and one C(29) atom. The C(22)-C(23) bond length is 1.43 Å. The C(22)-C(29) bond length is 1.52 Å. In the fourteenth C site, C(23) is bonded in a trigonal planar geometry to one C(22), one C(24), and one C(28) atom. The C(23)-C(24) bond length is 1.45 Å. The C(23)-C(28) bond length is 1.44 Å. In the fifteenth C site, C(24) is bonded in a distorted single-bond geometry to one C(23), one C(25), and one H(16) atom. The C(24)-C(25) bond length is 1.36 Å. The C(24)-H(16) bond length is 0.93 Å. In the sixteenth C site, C(25) is bonded in a distorted trigonal planar geometry to one C(24), one C(26), and one Cl(2) atom. The C(25)-C(26) bond length is 1.40 Å. The C(25)-Cl(2) bond length is 1.76 Å. In the seventeenth C site, C(26) is bonded in a distorted single-bond geometry to one C(25) and one H(17) atom. The C(26)-H(17) bond length is 0.93 Å. In the eighteenth C site, C(27) is bonded in a single-bond geometry to one C(28) and one H(18) atom. The C(27)-C(28) bond length is 1.44 Å. The C(27)-H(18) bond length is 0.93 Å. In the nineteenth C site, C(28) is bonded in a trigonal planar geometry to one C(19), one C(23), and one C(27) atom. In the twentieth C site, C(29) is bonded in a distorted bent 120 degrees geometry to one C(22), one O(4), and one O(5) atom. The C(29)-O(4) bond length is 1.25 Å. The C(29)-O(5) bond length is 1.27 Å. In the twenty-first C site, C(30) is bonded in a distorted trigonal non-coplanar geometry to one H(19), one H(20), and one O(6) atom. The C(30)-H(19) bond length is 0.97 Å. The C(30)-H(20) bond length is 0.97 Å. The C(30)-O(6) bond length is 1.44 Å. In the twenty-second C site, C(32) is bonded in a trigonal planar geometry to one C(32), one C(33), and one C(41) atom. The C(32)-C(32) bond length is 1.50 Å. The C(32)-C(33) bond length is 1.36 Å. The C(32)-C(41) bond length is 1.38 Å. In the twenty-third C site, C(33) is bonded in a distorted single-bond geometry to one C(32) and one O(9) atom. The C(33)-O(9) bond length is 1.38 Å. In the twenty-fourth C site, C(34) is bonded in a distorted single-bond geometry to one C(35) and one H(24) atom. The C(34)-C(35) bond length is 1.38 Å. The C(34)-H(24) bond length is 0.93 Å. In the twenty-fifth C site, C(35) is bonded in a trigonal planar geometry to one C(34), one C(36), and one C(42) atom. The C(35)-C(36) bond length is 1.41 Å. The C(35)-C(42) bond length is 1.50 Å. In the twenty-sixth C site, C(36) is bonded in a trigonal planar geometry to one C(35), one C(37), and one C(41) atom. The C(36)-C(37) bond length is 1.41 Å. The C(36)-C(41) bond length is 1.44 Å. In the twenty-seventh C site, C(37) is bonded in a distorted single-bond geometry to one C(36), one C(38), and one H(25) atom. The C(37)-C(38) bond length is 1.34 Å. The C(37)-H(25) bond length is 0.93 Å. In the twenty-eighth C site, C(38) is bonded in a trigonal planar geometry to one C(37), one C(39), and one Cl(3) atom. The C(38)-C(39) bond length is 1.39 Å. The C(38)-Cl(3) bond length is 1.77 Å. In the twenty-ninth C site, C(39) is bonded in a distorted single-bond geometry to one C(38) and one H(26) atom. The C(39)-H(26) bond length is 0.93 Å. In the thirtieth C site, C(40) is bonded in a distorted single-bond geometry to one C(41) and one H(27) atom. The C(40)-C(41) bond length is 1.43 Å. The C(40)-H(27) bond length is 0.93 Å. In the thirty-first C site, C(41) is bonded in a trigonal planar geometry to one C(32), one C(36), and one C(40) atom. In the thirty-second C site, C(42) is bonded in a distorted bent 120 degrees geometry to one C(35), one O(7), and one O(8) atom. The C(42)-O(7) bond length is 1.25 Å. The C(42)-O(8) bond length is 1.25 Å. In the thirty-third C site, C(43) is bonded in a distorted trigonal non-coplanar geometry to two equivalent H(28,29) and one O(9) atom. Both C(43)-H(28,29) bond lengths are 0.97 Å. The C(43)-O(9) bond length is 1.39 Å. In the thirty-fourth C site, C(9) is bonded in a trigonal planar geometry to one C(10), one C(16), and one C(8) atom. The C(9)-C(10) bond length is 1.41 Å. The C(9)-C(16) bond length is 1.51 Å. In the thirty-fifth C site, C(10) is bonded in a trigonal planar geometry to one C(11), one C(15), and one C(9) atom. The C(10)-C(11) bond length is 1.41 Å. The C(10)-C(15) bond length is 1.43 Å. In the thirty-sixth C site, C(11) is bonded in a distorted single-bond geometry to one C(10), one C(12), and one H(7) atom. The C(11)-H(7) bond length is 0.93 Å. In the thirty-seventh C site, C(15) is bonded in a trigonal planar geometry to one C(10), one C(14), and one C(6) atom. In the thirty-eighth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one C(9), one O(1), and one O(2) atom. The C(16)-O(1) bond length is 1.24 Å. The C(16)-O(2) bond length is 1.26 Å. N(1) is bonded in a trigonal planar geometry to one Gd(1), one C(1), and one C(5) atom. There are eighteen inequivalent H sites. In the first H site, H(1,5) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(6) is bonded in a single-bond geometry to one C(8) atom. In the third H site, H(7) is bonded in a single-bond geometry to one C(11) atom. In the fourth H site, H(8) is bonded in a single-bond geometry to one C(13) atom. In the fifth H site, H(9) is bonded in a single-bond geometry to one C(14) atom. In the sixth H site, H(10) is bonded in a single-bond geometry to one C(17) atom. In the seventh H site, H(11) is bonded in a single-bond geometry to one C(17) atom. In the eighth H site, H(15) is bonded in a single-bond geometry to one C(21) atom. In the ninth H site, H(16) is bonded in a single-bond geometry to one C(24) atom. In the tenth H site, H(17) is bonded in a single-bond geometry to one C(26) atom. In the eleventh H site, H(18) is bonded in a single-bond geometry to one C(27) atom. In the twelfth H site, H(19) is bonded in a single-bond geometry to one C(30) atom. In the thirteenth H site, H(20) is bonded in a single-bond geometry to one C(30) atom. In the fourteenth H site, H(24) is bonded in a single-bond geometry to one C(34) atom. In the fifteenth H site, H(25) is bonded in a single-bond geometry to one C(37) atom. In the sixteenth H site, H(26) is bonded in a single-bond geometry to one C(39) atom. In the seventeenth H site, H(27) is bonded in a single-bond geometry to one C(40) atom. In the eighteenth H site, H(28,29) is bonded in a single-bond geometry to one C(43) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Gd(1) and one C(16) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Gd(1) and one C(16) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one C(17) and one C(7) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Gd(1) and one C(29) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Gd(1) and one C(29) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one C(20) and one C(30) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to one Gd(1) and one C(42) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Gd(1) and one C(42) atom. In the ninth O site, O(9) is bonded in a bent 120 degrees geometry to one C(33) and one C(43) atom. There are three inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a single-bond geometry to one C(12) atom. In the second Cl site, Cl(2) is bonded in a single-bond geometry to one C(25) atom. In the third Cl site, Cl(3) is bonded in a single-bond geometry to one C(38) atom. Linkers: 8 CCOc1cc(C([O])=O)c2cc(Cl)ccc2c1-c1c(OCC)cc(C([O])=O)c2cc(Cl)ccc12. Metal clusters: 2 [C]1O[Gd]234(O1)O[C]O[Gd]1(O[C]O1)(O[C]O2)(O[C]O3)O[C]O4. RCSR code: acs. The MOF has largest included sphere 6.11 A, density 1.19 g/cm3, surface area 4336.85 m2/g, accessible volume 0.35 cm3/g