LaC12N2H7O7 crystallizes in the monoclinic Cc space group. La(1) is bonded in a 8-coordinate geometry to one N(1), one N(2), one O(1), one O(2), one O(3), one O(4), one O(5), and one O(7) atom. The La(1)-N(1) bond length is 2.70 Å. The La(1)-N(2) bond length is 2.72 Å. The La(1)-O(1) bond length is 2.44 Å. The La(1)-O(2) bond length is 2.46 Å. The La(1)-O(3) bond length is 2.46 Å. The La(1)-O(4) bond length is 2.56 Å. The La(1)-O(5) bond length is 2.47 Å. The La(1)-O(7) bond length is 2.62 Å. There are twelve inequivalent C sites. In the first C site, C(1) is bonded in a distorted single-bond geometry to one N(1) atom. The C(1)-N(1) bond length is 1.34 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(3) and one H(4) atom. The C(2)-C(3) bond length is 1.38 Å. The C(2)-H(4) bond length is 1.09 Å. In the third C site, C(3) is bonded in a distorted trigonal planar geometry to one C(2), one C(4), and one H(5) atom. The C(3)-C(4) bond length is 1.41 Å. The C(3)-H(5) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(3), one C(5), and one O(5) atom. The C(4)-C(5) bond length is 1.44 Å. The C(4)-O(5) bond length is 1.32 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(4), one C(7), and one N(1) atom. The C(5)-C(7) bond length is 1.49 Å. The C(5)-N(1) bond length is 1.35 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. The C(6)-O(1) bond length is 1.28 Å. The C(6)-O(2) bond length is 1.27 Å. In the seventh C site, C(7) is bonded in a distorted trigonal planar geometry to one C(5), one C(8), and one N(2) atom. The C(7)-C(8) bond length is 1.44 Å. The C(7)-N(2) bond length is 1.35 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(7), one C(9), and one O(6) atom. The C(8)-C(9) bond length is 1.40 Å. The C(8)-O(6) bond length is 1.34 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(10), one C(8), and one H(6) atom. The C(9)-C(10) bond length is 1.38 Å. The C(9)-H(6) bond length is 1.09 Å. In the tenth C site, C(10) is bonded in a distorted single-bond geometry to one C(11), one C(9), and one H(7) atom. The C(10)-C(11) bond length is 1.40 Å. The C(10)-H(7) bond length is 1.09 Å. In the eleventh C site, C(11) is bonded in a distorted trigonal planar geometry to one C(10), one C(12), and one N(2) atom. The C(11)-C(12) bond length is 1.50 Å. The C(11)-N(2) bond length is 1.34 Å. In the twelfth C site, C(12) is bonded in a distorted bent 120 degrees geometry to one C(11), one O(3), and one O(4) atom. The C(12)-O(3) bond length is 1.27 Å. The C(12)-O(4) bond length is 1.28 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted bent 120 degrees geometry to one La(1), one C(1), and one C(5) atom. In the second N site, N(2) is bonded in a distorted bent 120 degrees geometry to one La(1), one C(11), and one C(7) atom. There are seven inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one O(5) and one O(6) atom. The H(1)-O(5) bond length is 1.37 Å. The H(1)-O(6) bond length is 1.07 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(7) atom. The H(2)-O(7) bond length is 0.99 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(7) atom. The H(3)-O(7) bond length is 0.99 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(2) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(3) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(9) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(10) atom. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one La(1) and one C(6) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one La(1) and one C(6) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one La(1) and one C(12) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one La(1) and one C(12) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one La(1), one C(4), and one H(1) atom. In the sixth O site, O(6) is bonded in a water-like geometry to one C(8) and one H(1) atom. In the seventh O site, O(7) is bonded in a water-like geometry to one La(1), one H(2), and one H(3) atom. Linkers: 1 [O]C(=O)c1ccc([O])c(-c2nc(C([O])=O)ccc2O)n1. Metal clusters: 2 [La]. The MOF has largest included sphere 1.78 A, density 2.36 g/cm3, surface area 2522.53 m2/g, accessible volume 0.04 cm3/g