NdC13H7O6 crystallizes in the monoclinic P2_1/c space group. Nd(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(6), two equivalent O(4), and two equivalent O(5) atoms. The Nd(1)-O(1) bond length is 2.34 Å. The Nd(1)-O(2) bond length is 2.42 Å. The Nd(1)-O(3) bond length is 2.41 Å. The Nd(1)-O(6) bond length is 2.38 Å. There is one shorter (2.44 Å) and one longer (2.66 Å) Nd(1)-O(4) bond length. There is one shorter (2.53 Å) and one longer (2.62 Å) Nd(1)-O(5) bond length. There are thirteen inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one H(1), one O(4), and one O(5) atom. The C(1)-H(1) bond length is 1.11 Å. The C(1)-O(4) bond length is 1.27 Å. The C(1)-O(5) bond length is 1.27 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(1), and one O(3) atom. The C(2)-C(3) bond length is 1.50 Å. The C(2)-O(1) bond length is 1.29 Å. The C(2)-O(3) bond length is 1.27 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(13), one C(2), and one C(4) atom. The C(3)-C(13) bond length is 1.39 Å. The C(3)-C(4) bond length is 1.42 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(3) and one H(2) atom. The C(4)-H(2) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(6) and one H(3) atom. The C(5)-C(6) bond length is 1.42 Å. The C(5)-H(3) bond length is 1.09 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(12), one C(5), and one C(7) atom. The C(6)-C(12) bond length is 1.41 Å. The C(6)-C(7) bond length is 1.44 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(13), one C(6), and one C(8) atom. The C(7)-C(13) bond length is 1.42 Å. The C(7)-C(8) bond length is 1.42 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(10), one C(7), and one H(4) atom. The C(8)-C(10) bond length is 1.38 Å. The C(8)-H(4) bond length is 1.09 Å. In the ninth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(11), one O(2), and one O(6) atom. The C(9)-C(11) bond length is 1.49 Å. The C(9)-O(2) bond length is 1.28 Å. The C(9)-O(6) bond length is 1.27 Å. In the tenth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(11), one C(8), and one H(5) atom. The C(10)-C(11) bond length is 1.42 Å. The C(10)-H(5) bond length is 1.09 Å. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one C(10), one C(12), and one C(9) atom. The C(11)-C(12) bond length is 1.39 Å. In the twelfth C site, C(12) is bonded in a distorted single-bond geometry to one C(11), one C(6), and one H(6) atom. The C(12)-H(6) bond length is 1.09 Å. In the thirteenth C site, C(13) is bonded in a distorted trigonal planar geometry to one C(3), one C(7), and one H(7) atom. The C(13)-H(7) bond length is 1.09 Å. There are seven inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(4) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(5) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(8) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(10) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(12) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(13) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Nd(1) and one C(2) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Nd(1) and one C(9) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Nd(1) and one C(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to two equivalent Nd(1) and one C(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent Nd(1) and one C(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Nd(1) and one C(9) atom. Linkers: 4 [O]C(=O)c1ccc2cc(C([O])=O)ccc2c1. Metal clusters: 4 [Nd]. RCSR code: sra. The MOF has largest included sphere 1.85 A, density 2.28 g/cm3, surface area 2864.51 m2/g, accessible volume 0.11 cm3/g