Nd4C25H9(NO4)4(CH)3 crystallizes in the monoclinic C2 space group. The structure consists of six 02329_fluka molecules inside a Nd4C25H9(NO4)4 framework. In the Nd4C25H9(NO4)4 framework, there are three inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 5-coordinate geometry to one N(1), one O(1), one O(2), one O(3), and one O(7) atom. The Nd(1)-N(1) bond length is 2.58 Å. The Nd(1)-O(1) bond length is 2.52 Å. The Nd(1)-O(2) bond length is 2.41 Å. The Nd(1)-O(3) bond length is 2.51 Å. The Nd(1)-O(7) bond length is 2.41 Å. In the second Nd site, Nd(2) is bonded in a 5-coordinate geometry to one N(3), two equivalent O(4), and two equivalent O(5) atoms. The Nd(2)-N(3) bond length is 2.56 Å. Both Nd(2)-O(4) bond lengths are 2.42 Å. Both Nd(2)-O(5) bond lengths are 2.51 Å. In the third Nd site, Nd(3) is bonded in a 5-coordinate geometry to one N(2), two equivalent O(6), and two equivalent O(8) atoms. The Nd(3)-N(2) bond length is 2.58 Å. Both Nd(3)-O(6) bond lengths are 2.41 Å. Both Nd(3)-O(8) bond lengths are 2.52 Å. There are thirteen inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(13), one C(5), and one N(2) atom. The C(1)-C(13) bond length is 1.39 Å. The C(1)-C(5) bond length is 1.52 Å. The C(1)-N(2) bond length is 1.34 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(7), one C(8), and one N(1) atom. The C(2)-C(7) bond length is 1.51 Å. The C(2)-C(8) bond length is 1.38 Å. The C(2)-N(1) bond length is 1.35 Å. In the third C site, C(3) is bonded in a distorted trigonal planar geometry to one C(12), one C(6), and one N(1) atom. The C(3)-C(12) bond length is 1.53 Å. The C(3)-C(6) bond length is 1.38 Å. The C(3)-N(1) bond length is 1.34 Å. In the fourth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(2), and one O(8) atom. The C(5)-O(2) bond length is 1.26 Å. The C(5)-O(8) bond length is 1.27 Å. In the fifth C site, C(6) is bonded in a distorted single-bond geometry to one C(3) and one H(2) atom. The C(6)-H(2) bond length is 0.93 Å. In the sixth C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(3), and one O(4) atom. The C(7)-O(3) bond length is 1.28 Å. The C(7)-O(4) bond length is 1.25 Å. In the seventh C site, C(8) is bonded in a distorted single-bond geometry to one C(2) and one H(3) atom. The C(8)-H(3) bond length is 0.93 Å. In the eighth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(10), one O(5), and one O(7) atom. The C(9)-C(10) bond length is 1.52 Å. The C(9)-O(5) bond length is 1.27 Å. The C(9)-O(7) bond length is 1.27 Å. In the ninth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(11), one C(9), and one N(3) atom. The C(10)-C(11) bond length is 1.38 Å. The C(10)-N(3) bond length is 1.36 Å. In the tenth C site, C(11) is bonded in a distorted single-bond geometry to one C(10), one C(15), and one H(4) atom. The C(11)-C(15) bond length is 1.37 Å. The C(11)-H(4) bond length is 0.93 Å. In the eleventh C site, C(12) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(1), and one O(6) atom. The C(12)-O(1) bond length is 1.27 Å. The C(12)-O(6) bond length is 1.26 Å. In the twelfth C site, C(13) is bonded in a distorted single-bond geometry to one C(1) and one H(5) atom. The C(13)-H(5) bond length is 0.93 Å. In the thirteenth C site, C(15) is bonded in a distorted single-bond geometry to two equivalent C(11) and one H(7) atom. The C(15)-H(7) bond length is 0.93 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Nd(1), one C(2), and one C(3) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one Nd(3) and two equivalent C(1) atoms. In the third N site, N(3) is bonded in a trigonal planar geometry to one Nd(2) and two equivalent C(10) atoms. There are five inequivalent H sites. In the first H site, H(2) is bonded in a single-bond geometry to one C(6) atom. In the second H site, H(3) is bonded in a single-bond geometry to one C(8) atom. In the third H site, H(4) is bonded in a single-bond geometry to one C(11) atom. In the fourth H site, H(5) is bonded in a single-bond geometry to one C(13) atom. In the fifth H site, H(7) is bonded in a single-bond geometry to one C(15) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Nd(1) and one C(12) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Nd(1) and one C(5) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Nd(1) and one C(7) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Nd(2) and one C(7) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Nd(2) and one C(9) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Nd(3) and one C(12) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Nd(1) and one C(9) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Nd(3) and one C(5) atom. Linkers: 8 [O]C(=O)c1cccc(C([O])=O)n1. Metal clusters: 8 [Nd]. The MOF has largest included sphere 5.15 A, density 1.21 g/cm3, surface area 3130.37 m2/g, accessible volume 0.47 cm3/g