La2NiC26H22(N3O10)2 crystallizes in the triclinic P-1 space group. La(1) is bonded in a 10-coordinate geometry to one O(10), one O(2), one O(3), one O(5), one O(6), one O(7), one O(8), one O(9), and two equivalent O(4) atoms. The La(1)-O(10) bond length is 2.49 Å. The La(1)-O(2) bond length is 2.55 Å. The La(1)-O(3) bond length is 2.75 Å. The La(1)-O(5) bond length is 2.65 Å. The La(1)-O(6) bond length is 2.52 Å. The La(1)-O(7) bond length is 2.56 Å. The La(1)-O(8) bond length is 2.68 Å. The La(1)-O(9) bond length is 2.64 Å. There is one shorter (2.64 Å) and one longer (2.79 Å) La(1)-O(4) bond length. Ni(1) is bonded in a square co-planar geometry to two equivalent N(2) and two equivalent O(1) atoms. Both Ni(1)-N(2) bond lengths are 1.85 Å. Both Ni(1)-O(1) bond lengths are 1.87 Å. There are thirteen inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one N(2), one N(3), and one H(3) atom. The C(1)-N(2) bond length is 1.33 Å. The C(1)-N(3) bond length is 1.35 Å. The C(1)-H(3) bond length is 1.08 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(3), one C(5), and one N(3) atom. The C(2)-C(3) bond length is 1.39 Å. The C(2)-C(5) bond length is 1.48 Å. The C(2)-N(3) bond length is 1.38 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(4), and one N(2) atom. The C(3)-C(4) bond length is 1.48 Å. The C(3)-N(2) bond length is 1.38 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(1), and one O(2) atom. The C(4)-O(1) bond length is 1.31 Å. The C(4)-O(2) bond length is 1.24 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(2), 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 1.27 Å. In the sixth C site, C(6) is bonded in a bent 120 degrees geometry to one C(9), one O(5), and one O(6) atom. The C(6)-C(9) bond length is 1.50 Å. The C(6)-O(5) bond length is 1.28 Å. The C(6)-O(6) bond length is 1.28 Å. In the seventh C site, C(7) is bonded in a distorted trigonal planar geometry to one C(11), one C(8), and one N(1) atom. The C(7)-C(11) bond length is 1.40 Å. The C(7)-C(8) bond length is 1.40 Å. The C(7)-N(1) bond length is 1.39 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 H(5) atom. The C(8)-C(9) bond length is 1.40 Å. The C(8)-H(5) bond length is 1.09 Å. In the ninth C site, C(9) is bonded in a trigonal planar geometry to one C(10), one C(6), and one C(8) atom. The C(9)-C(10) bond length is 1.40 Å. In the tenth C site, C(10) is bonded in a distorted single-bond geometry to one C(12), one C(9), and one H(6) atom. The C(10)-C(12) bond length is 1.40 Å. The C(10)-H(6) bond length is 1.09 Å. In the eleventh C site, C(11) is bonded in a distorted trigonal planar geometry to one C(12), one C(7), and one H(7) atom. The C(11)-C(12) bond length is 1.40 Å. The C(11)-H(7) bond length is 1.09 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one C(10), one C(11), and one C(13) atom. The C(12)-C(13) bond length is 1.49 Å. In the thirteenth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(12), one O(7), and one O(8) atom. The C(13)-O(7) bond length is 1.29 Å. The C(13)-O(8) bond length is 1.27 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal non-coplanar geometry to one C(7), one H(1), and one H(2) atom. The N(1)-H(1) bond length is 1.02 Å. The N(1)-H(2) bond length is 1.02 Å. In the second N site, N(2) is bonded in a trigonal planar geometry to one Ni(1), one C(1), and one C(3) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one C(1), one C(2), and one H(4) atom. The N(3)-H(4) bond length is 1.02 Å. There are eleven inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one N(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one N(1) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(1) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one N(3) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(8) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(10) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(11) atom. In the eighth H site, H(8) is bonded in a distorted single-bond geometry to one O(7) and one O(9) atom. The H(8)-O(7) bond length is 1.65 Å. The H(8)-O(9) bond length is 1.01 Å. In the ninth H site, H(9) is bonded in a single-bond geometry to one O(9) atom. The H(9)-O(9) bond length is 0.99 Å. In the tenth H site, H(10) is bonded in a single-bond geometry to one O(10) atom. The H(10)-O(10) bond length is 1.00 Å. In the eleventh H site, H(11) is bonded in a single-bond geometry to one O(10) atom. The H(11)-O(10) bond length is 0.99 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Ni(1) and one C(4) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one La(1) and one C(4) atom. In the third O site, O(3) is bonded in a 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 two equivalent La(1) and one C(5) atom. In the fifth O site, O(5) is bonded in a distorted single-bond 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 3-coordinate geometry to one La(1), one C(13), and one H(8) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one La(1) and one C(13) atom. In the ninth O site, O(9) is bonded in a water-like geometry to one La(1), one H(8), and one H(9) atom. In the tenth O site, O(10) is bonded in a distorted water-like geometry to one La(1), one H(10), and one H(11) atom. Linkers: 2 [O]C(=O)c1nc[nH]c1C([O])=O. Metal clusters: 2 [La] ,1 [Ni]. The MOF has largest included sphere 3.28 A, density 2.09 g/cm3, surface area 2781.31 m2/g, accessible volume 0.12 cm3/g