LaZn2C11H2(N2O5)2 crystallizes in the monoclinic C2/c space group. La(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(4), one O(6), one O(7), one O(9), and two equivalent O(3) atoms. The La(1)-O(1) bond length is 2.51 Å. The La(1)-O(10) bond length is 2.55 Å. The La(1)-O(4) bond length is 2.81 Å. The La(1)-O(6) bond length is 2.47 Å. The La(1)-O(7) bond length is 2.47 Å. The La(1)-O(9) bond length is 2.51 Å. There is one shorter (2.51 Å) and one longer (2.65 Å) La(1)-O(3) bond length. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a distorted octahedral geometry to one N(1), one N(2), one N(4), one O(2), one O(4), and one O(5) atom. The Zn(1)-N(1) bond length is 2.10 Å. The Zn(1)-N(2) bond length is 2.04 Å. The Zn(1)-N(4) bond length is 2.07 Å. The Zn(1)-O(2) bond length is 2.31 Å. The Zn(1)-O(4) bond length is 2.23 Å. The Zn(1)-O(5) bond length is 2.18 Å. In the second Zn site, Zn(2) is bonded in a distorted T-shaped geometry to one N(3), one O(2), and one O(8) atom. The Zn(2)-N(3) bond length is 2.02 Å. The Zn(2)-O(2) bond length is 1.97 Å. The Zn(2)-O(8) bond length is 2.18 Å. There are twelve 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 1.48 Å. The C(1)-O(1) bond length is 1.25 Å. The C(1)-O(2) bond length is 1.28 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(1), one C(3), and one N(2) atom. The C(2)-C(3) bond length is 1.39 Å. The C(2)-N(2) bond length is 1.36 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2) and one N(1) atom. The C(3)-N(1) bond length is 1.38 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. The C(4)-O(3) bond length is 1.28 Å. The C(4)-O(4) bond length is 1.26 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one N(1), one N(2), and one H(1) atom. The C(5)-N(1) bond length is 1.33 Å. The C(5)-N(2) bond length is 1.33 Å. The C(5)-H(1) bond length is 0.93 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(7), one O(5), and one O(6) atom. The C(6)-C(7) bond length is 1.46 Å. The C(6)-O(5) bond length is 1.27 Å. The C(6)-O(6) bond length is 1.25 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to one C(6), one C(8), and one N(4) atom. The C(7)-C(8) bond length is 1.38 Å. The C(7)-N(4) bond length is 1.37 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 1.47 Å. The C(8)-N(3) bond length is 1.38 Å. In the ninth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(8), one O(7), and one O(8) atom. The C(9)-O(7) bond length is 1.25 Å. The C(9)-O(8) bond length is 1.27 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one N(3), one N(4), and one H(2) atom. The C(10)-N(3) bond length is 1.33 Å. The C(10)-N(4) bond length is 1.33 Å. The C(10)-H(2) bond length is 0.93 Å. In the eleventh C site, C(11) is bonded in a distorted bent 120 degrees geometry to two equivalent O(9) atoms. Both C(11)-O(9) bond lengths are 1.25 Å. In the twelfth C site, C(12) is bonded in a distorted bent 120 degrees geometry to two equivalent O(10) atoms. Both C(12)-O(10) bond lengths are 1.30 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Zn(1), one C(3), and one C(5) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one Zn(1), one C(2), and one C(5) atom. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one Zn(2), one C(10), and one C(8) atom. In the fourth N site, N(4) is bonded in a distorted trigonal planar geometry to one Zn(1), one C(10), and one C(7) atom. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(5) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(10) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one La(1) and one C(1) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Zn(1), one Zn(2), and one C(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent La(1) and one C(4) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one La(1), one Zn(1), and one C(4) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(6) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one La(1) and one C(6) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one La(1) and one C(9) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Zn(2) and one C(9) atom. In the ninth O site, O(10) is bonded in a distorted single-bond geometry to one La(1) and one C(12) atom. In the tenth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one La(1) and one C(11) atom. Linkers: 7 [O]C(=O)[C]1N=CN=C1C([O])=O ,1 [O]C(=O)C1=C(C([O])=O)N=C[N]1 ,2 [O]C(=O)C([O])=O. Metal clusters: 4 [La] ,8 [Zn]. The MOF has largest included sphere 4.29 A, density 2.14 g/cm3, surface area 2494.57 m2/g, accessible volume 0.17 cm3/g