Al2C14(N2O3)3 crystallizes in the tetragonal I4/mmm space group. Al(1) is bonded to one O(2), one O(3), two equivalent O(1), and two equivalent O(4) atoms to form a mixture of edge and corner-sharing AlO6 octahedra. The corner-sharing octahedral tilt angles are 54°. The Al(1)-O(2) bond length is 1.93 Å. The Al(1)-O(3) bond length is 1.86 Å. Both Al(1)-O(1) bond lengths are 1.88 Å. Both Al(1)-O(4) bond lengths are 1.88 Å. There are seven inequivalent C sites. In the first C site, C(2) is bonded in a distorted single-bond geometry to one C(5) and one N(2) atom. The C(2)-C(5) bond length is 1.43 Å. The C(2)-N(2) bond length is 1.51 Å. In the second C site, C(3) is bonded in a single-bond geometry to one O(4) atom. The C(3)-O(4) bond length is 1.46 Å. In the third C site, C(1) is bonded in a distorted single-bond geometry to one C(1), one C(7), and one N(1) atom. The C(1)-C(1) bond length is 1.36 Å. The C(1)-C(7) bond length is 1.43 Å. The C(1)-N(1) bond length is 1.49 Å. In the fourth C site, C(4) is bonded in a bent 120 degrees geometry to one C(5) and two equivalent O(2) atoms. The C(4)-C(5) bond length is 1.53 Å. Both C(4)-O(2) bond lengths are 1.25 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(4) and two equivalent C(2) atoms. In the sixth C site, C(6) is bonded in a bent 120 degrees geometry to one C(7) and two equivalent O(1) atoms. The C(6)-C(7) bond length is 1.51 Å. Both C(6)-O(1) bond lengths are 1.26 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(6) and two equivalent C(1) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded in a single-bond geometry to one C(1) atom. In the second N site, N(2) is bonded in a single-bond geometry to one C(2) atom. There are four inequivalent O sites. In the first O site, O(2) is bonded in a bent 120 degrees geometry to one Al(1) and one C(4) atom. In the second O site, O(3) is bonded in a bent 120 degrees geometry to two equivalent Al(1) atoms. In the third O site, O(4) is bonded in a trigonal planar geometry to two equivalent Al(1) and one C(3) atom. In the fourth O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Al(1) and one C(6) atom. Linkers: 12 [N]c1c([N])c(C([O])=O)c([N])c([N])c1C([O])=O. Metal clusters: 2 [C]O[Al]123(O[C])O[C]O[Al](O[C])(O[C])(O[C]O1)(O[C]O[Al@]14O[C]O[Al](O[C])(O[C])(O[C]O1)(O[C]O[Al@]15O[C]O[Al@](O[C]O[Al]67(O[C])(O[C])O[C]O[Al@@](O[C]O2)(O[C]O6)O7)(O[C]O1)O5)O4)O3. RCSR code: fcu. The MOF has largest included sphere 10.22 A, density 1.00 g/cm3, surface area 4112.04 m2/g, accessible volume 0.56 cm3/g