LaC9N3H5O7 crystallizes in the triclinic P-1 space group. La(1) is bonded in a 9-coordinate geometry to one N(2), one N(3), one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom. The La(1)-N(2) bond length is 2.82 Å. The La(1)-N(3) bond length is 2.73 Å. The La(1)-O(1) bond length is 2.49 Å. The La(1)-O(2) bond length is 2.50 Å. The La(1)-O(3) bond length is 2.57 Å. The La(1)-O(4) bond length is 2.55 Å. The La(1)-O(5) bond length is 2.54 Å. The La(1)-O(6) bond length is 2.62 Å. The La(1)-O(7) bond length is 2.56 Å. There are nine inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(1)-C(2) bond length is 1.51 Å. The C(1)-O(1) bond length is 1.26 Å. The C(1)-O(2) bond length is 1.27 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(1), one C(3), and one N(1) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-N(1) bond length is 1.34 Å. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one C(2), one N(1), and one H(1) atom. The C(3)-N(1) bond length is 1.34 Å. The C(3)-H(1) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(3), and one O(4) atom. The C(4)-C(5) bond length is 1.52 Å. The C(4)-O(3) bond length is 1.27 Å. The C(4)-O(4) bond length is 1.27 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(4), one C(6), and one N(2) atom. The C(5)-C(6) bond length is 1.40 Å. The C(5)-N(2) bond length is 1.35 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(5), one N(2), and one H(2) atom. The C(6)-N(2) bond length is 1.34 Å. The C(6)-H(2) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(8), one O(5), and one O(6) atom. The C(7)-C(8) bond length is 1.50 Å. The C(7)-O(5) bond length is 1.26 Å. The C(7)-O(6) bond length is 1.28 Å. In the eighth C site, C(8) is bonded in a distorted trigonal planar geometry to one C(7), one C(9), and one N(3) atom. The C(8)-C(9) bond length is 1.40 Å. The C(8)-N(3) bond length is 1.34 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(8), one N(3), and one H(3) atom. The C(9)-N(3) bond length is 1.34 Å. The C(9)-H(3) bond length is 1.08 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a bent 120 degrees geometry to one C(2) and one C(3) atom. In the second N site, N(2) is bonded in a bent 120 degrees geometry to one La(1), one C(5), and one C(6) atom. In the third N site, N(3) is bonded in a distorted bent 120 degrees geometry to one La(1), one C(8), and one C(9) atom. There are five inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(6) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(9) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(7) atom. The H(4)-O(7) bond length is 0.97 Å. In the fifth H site, H(5) is bonded in a distorted single-bond geometry to one O(7) atom. The H(5)-O(7) bond length is 1.00 Å. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one La(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one La(1) and one C(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one La(1) and one C(4) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one La(1) and one C(4) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one La(1) and one C(7) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one La(1) and one C(7) 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(5) atom. Linkers: 3 [O]C(=O)c1cnc(C([O])=O)cn1. Metal clusters: 2 [La]. The MOF has largest included sphere 1.43 A, density 2.64 g/cm3, surface area 2199.19 m2/g, accessible volume 0.03 cm3/g