NdC12H8(O5Br3)2 crystallizes in the triclinic P-1 space group. Nd(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(8) atom. The Nd(1)-O(1) bond length is 2.58 Å. The Nd(1)-O(10) bond length is 2.45 Å. The Nd(1)-O(2) bond length is 2.50 Å. The Nd(1)-O(3) bond length is 2.36 Å. The Nd(1)-O(4) bond length is 2.39 Å. The Nd(1)-O(5) bond length is 2.48 Å. The Nd(1)-O(6) bond length is 2.55 Å. The Nd(1)-O(8) bond length is 2.47 Å. There are twelve inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(12), one C(3), and one Br(5) atom. The C(1)-C(12) bond length is 1.40 Å. The C(1)-C(3) bond length is 1.40 Å. The C(1)-Br(5) bond length is 1.89 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(5), one C(8), and one Br(4) atom. The C(2)-C(5) bond length is 1.40 Å. The C(2)-C(8) bond length is 1.40 Å. The C(2)-Br(4) bond length is 1.90 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(1), one C(10), and one C(12) atom. The C(3)-C(10) bond length is 1.52 Å. The C(3)-C(12) bond length is 1.40 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one C(11), one O(4), and one O(9) atom. The C(4)-C(11) bond length is 1.53 Å. The C(4)-O(4) bond length is 1.28 Å. The C(4)-O(9) bond length is 1.26 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(2), one C(6), and one C(7) atom. The C(5)-C(6) bond length is 1.40 Å. The C(5)-C(7) bond length is 1.52 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(5), one C(9), and one Br(1) atom. The C(6)-C(9) bond length is 1.40 Å. The C(6)-Br(1) bond length is 1.90 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(3), and one O(5) atom. The C(7)-O(3) bond length is 1.27 Å. The C(7)-O(5) bond length is 1.26 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one C(11), one C(2), and one Br(2) atom. The C(8)-C(11) bond length is 1.40 Å. The C(8)-Br(2) bond length is 1.90 Å. In the ninth C site, C(9) is bonded in a trigonal planar geometry to one C(11), one C(6), and one Br(3) atom. The C(9)-C(11) bond length is 1.40 Å. The C(9)-Br(3) bond length is 1.90 Å. In the tenth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(2), and one O(7) atom. The C(10)-O(2) bond length is 1.29 Å. The C(10)-O(7) bond length is 1.25 Å. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one C(4), one C(8), and one C(9) atom. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one C(1), one C(3), and one Br(6) atom. The C(12)-Br(6) bond length is 1.90 Å. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(8) atom. The H(1)-O(8) bond length is 0.98 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(6) atom. The H(2)-O(6) bond length is 0.97 Å. In the third H site, H(3) is bonded in a distorted linear geometry to one O(8) and one O(9) atom. The H(3)-O(8) bond length is 1.02 Å. The H(3)-O(9) bond length is 1.61 Å. In the fourth H site, H(4) is bonded in a distorted single-bond geometry to one O(10) and one O(2) atom. The H(4)-O(10) bond length is 1.00 Å. The H(4)-O(2) bond length is 1.66 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(6) atom. The H(5)-O(6) bond length is 1.00 Å. In the sixth H site, H(6) is bonded in a distorted linear geometry to one O(1) and one O(7) atom. The H(6)-O(1) bond length is 1.03 Å. The H(6)-O(7) bond length is 1.55 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(1) atom. The H(7)-O(1) bond length is 0.98 Å. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(10) atom. The H(8)-O(10) bond length is 0.98 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one Nd(1), one H(6), and one H(7) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Nd(1), one C(10), and one H(4) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one Nd(1) and one C(7) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Nd(1) and one C(4) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Nd(1) and one C(7) atom. In the sixth O site, O(6) is bonded in a water-like geometry to one Nd(1), one H(2), and one H(5) atom. In the seventh O site, O(7) is bonded in a water-like geometry to one C(10) and one H(6) atom. In the eighth O site, O(8) is bonded in a distorted water-like geometry to one Nd(1), one H(1), and one H(3) atom. In the ninth O site, O(9) is bonded in a bent 120 degrees geometry to one C(4) and one H(3) atom. In the tenth O site, O(10) is bonded in a distorted water-like geometry to one Nd(1), one H(4), and one H(8) atom. There are six inequivalent Br sites. In the first Br site, Br(1) is bonded in a single-bond geometry to one C(6) atom. In the second Br site, Br(2) is bonded in a single-bond geometry to one C(8) atom. In the third Br site, Br(3) is bonded in a single-bond geometry to one C(9) atom. In the fourth Br site, Br(4) is bonded in a single-bond geometry to one C(2) atom. In the fifth Br site, Br(5) is bonded in a single-bond geometry to one C(1) atom. In the sixth Br site, Br(6) is bonded in a single-bond geometry to one C(12) atom. Linkers: 1 [O]C(=O)c1c(Br)c(Br)c([C]=O)c(Br)c1Br ,1 [O]C(=O)c1c(Br)c(Br)c(C([O])=O)c(Br)c1Br ,1 [O][C]c1c(Br)c(Br)c(C([O])=O)c(Br)c1Br. Metal clusters: 1 O.O.O.O.O.O.O.O.O=[C]O[Nd]1(O[C]=O)O[C]O[Nd](O[C]=O)(O[C]=O)O[C]O1. RCSR code: sql. The MOF has largest included sphere 2.15 A, density 2.95 g/cm3, surface area 2317.63 m2/g, accessible volume 0.06 cm3/g