LaC7H7(NO4)2 crystallizes in the triclinic P-1 space group. La(1) is bonded in a 10-coordinate geometry to one N(2), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and two equivalent O(1) atoms. The La(1)-N(2) bond length is 2.85 Å. The La(1)-O(2) bond length is 2.93 Å. The La(1)-O(3) bond length is 2.58 Å. The La(1)-O(4) bond length is 2.55 Å. The La(1)-O(5) bond length is 2.55 Å. The La(1)-O(6) bond length is 2.58 Å. The La(1)-O(7) bond length is 2.53 Å. The La(1)-O(8) bond length is 2.59 Å. There is one shorter (2.58 Å) and one longer (2.64 Å) La(1)-O(1) bond length. There are seven inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(2), one C(7), and one N(2) atom. The C(1)-C(2) bond length is 1.39 Å. The C(1)-C(7) bond length is 1.50 Å. The C(1)-N(2) bond length is 1.34 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(1), one N(1), and one H(1) atom. The C(2)-N(1) bond length is 1.34 Å. The C(2)-H(1) bond length is 1.09 Å. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one C(4), one N(1), and one H(2) atom. The C(3)-C(4) bond length is 1.40 Å. The C(3)-N(1) bond length is 1.34 Å. The C(3)-H(2) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(3), one N(2), and one H(3) atom. The C(4)-N(2) bond length is 1.33 Å. The C(4)-H(3) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. The C(5)-O(3) bond length is 1.27 Å. The C(5)-O(4) bond length is 1.26 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one O(5) and one O(6) atom. The C(6)-O(5) bond length is 1.26 Å. The C(6)-O(6) bond length is 1.27 Å. In the seventh C site, C(7) is bonded in a bent 120 degrees geometry to one C(1), one O(1), and one O(2) atom. The C(7)-O(1) bond length is 1.29 Å. The C(7)-O(2) bond length is 1.26 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one C(2), one C(3), and one H(4) atom. The N(1)-H(4) bond length is 1.71 Å. In the second N site, N(2) is bonded in a bent 120 degrees geometry to one La(1), one C(1), and one C(4) atom. There are seven inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(4) atom. In the fourth H site, H(4) is bonded in a distorted single-bond geometry to one N(1) and one O(7) atom. The H(4)-O(7) bond length is 1.01 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(8) atom. The H(5)-O(8) bond length is 0.99 Å. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(7) atom. The H(6)-O(7) bond length is 0.99 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(8) atom. The H(7)-O(8) bond length is 0.99 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent La(1) and one C(7) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one La(1) and one C(7) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one La(1) and one C(5) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one La(1) and one C(5) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one La(1) and one C(6) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one La(1) and one C(6) atom. In the seventh O site, O(7) is bonded in a water-like geometry to one La(1), one H(4), and one H(6) atom. In the eighth O site, O(8) is bonded in a water-like geometry to one La(1), one H(5), and one H(7) atom. Linkers: 1 [O]C(=O)C([O])=O. Metal clusters: 2 [La]. The MOF has largest included sphere 1.85 A, density 2.42 g/cm3, surface area 2576.92 m2/g, accessible volume 0.05 cm3/g