K4Ti2C12N2H24O23 crystallizes in the triclinic P-1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 9-coordinate geometry to one H(11), one O(10), one O(11), one O(2), one O(4), one O(5), one O(6), and two equivalent O(12) atoms. The K(1)-H(11) bond length is 2.81 Å. The K(1)-O(10) bond length is 2.73 Å. The K(1)-O(11) bond length is 3.10 Å. The K(1)-O(2) bond length is 2.69 Å. The K(1)-O(4) bond length is 2.71 Å. The K(1)-O(5) bond length is 2.88 Å. The K(1)-O(6) bond length is 3.04 Å. There is one shorter (3.02 Å) and one longer (3.03 Å) K(1)-O(12) bond length. In the second K site, K(2) is bonded in a 8-coordinate geometry to one H(5), one O(10), one O(11), one O(12), one O(4), one O(6), and two equivalent O(2) atoms. The K(2)-H(5) bond length is 2.84 Å. The K(2)-O(10) bond length is 2.75 Å. The K(2)-O(11) bond length is 2.74 Å. The K(2)-O(12) bond length is 2.97 Å. The K(2)-O(4) bond length is 2.82 Å. The K(2)-O(6) bond length is 2.70 Å. There is one shorter (2.71 Å) and one longer (2.72 Å) K(2)-O(2) bond length. Ti(1) is bonded in a 7-coordinate geometry to one N(1), one O(1), one O(3), one O(5), one O(7), one O(8), and one O(9) atom. The Ti(1)-N(1) bond length is 2.32 Å. The Ti(1)-O(1) bond length is 2.12 Å. The Ti(1)-O(3) bond length is 2.08 Å. The Ti(1)-O(5) bond length is 2.10 Å. The Ti(1)-O(7) bond length is 1.91 Å. The Ti(1)-O(8) bond length is 1.91 Å. The Ti(1)-O(9) bond length is 1.84 Å. There are six inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. The C(1)-O(1) bond length is 1.30 Å. The C(1)-O(2) bond length is 1.25 Å. In the second C site, C(2) is bonded in a distorted trigonal non-coplanar geometry to one N(1), one H(1), and one H(2) atom. The C(2)-N(1) bond length is 1.47 Å. The C(2)-H(1) bond length is 1.10 Å. The C(2)-H(2) bond length is 1.10 Å. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. The C(3)-O(3) bond length is 1.30 Å. The C(3)-O(4) bond length is 1.25 Å. In the fourth C site, C(4) is bonded in a distorted trigonal non-coplanar geometry to one N(1), one H(3), and one H(4) atom. The C(4)-N(1) bond length is 1.48 Å. The C(4)-H(3) bond length is 1.10 Å. The C(4)-H(4) bond length is 1.10 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one O(5) and one O(6) atom. The C(5)-O(5) bond length is 1.29 Å. The C(5)-O(6) bond length is 1.26 Å. In the sixth C site, C(6) is bonded in a distorted trigonal non-coplanar geometry to one N(1), one H(5), and one H(6) atom. The C(6)-N(1) bond length is 1.48 Å. The C(6)-H(5) bond length is 1.10 Å. The C(6)-H(6) bond length is 1.10 Å. N(1) is bonded in a distorted tetrahedral geometry to one Ti(1), one C(2), one C(4), and one C(6) atom. There are twelve inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(4) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one K(2) and one C(6) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(6) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(10) and one O(7) atom. The H(7)-O(10) bond length is 0.99 Å. The H(7)-O(7) bond length is 1.78 Å. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(10) atom. The H(8)-O(10) bond length is 0.99 Å. In the ninth H site, H(9) is bonded in a single-bond geometry to one O(11) atom. The H(9)-O(11) bond length is 0.98 Å. In the tenth H site, H(10) is bonded in a single-bond geometry to one O(11) atom. The H(10)-O(11) bond length is 0.98 Å. In the eleventh H site, H(11) is bonded in a single-bond geometry to one K(1) and one O(12) atom. The H(11)-O(12) bond length is 0.99 Å. In the twelfth H site, H(12) is bonded in a single-bond geometry to one O(12) atom. The H(12)-O(12) bond length is 0.98 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Ti(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one K(1), two equivalent K(2), and one C(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Ti(1) and one C(3) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one C(3) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one K(1), one Ti(1), and one C(5) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one C(5) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Ti(1), one H(7), and one O(8) atom. The O(7)-O(8) bond length is 1.47 Å. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Ti(1) and one O(7) atom. In the ninth O site, O(9) is bonded in a linear geometry to two equivalent Ti(1) atoms. In the tenth O site, O(10) is bonded in a water-like geometry to one K(1), one K(2), one H(7), and one H(8) atom. In the eleventh O site, O(11) is bonded in a distorted water-like geometry to one K(1), one K(2), one H(10), and one H(9) atom. In the twelfth O site, O(12) is bonded in a water-like geometry to one K(2), two equivalent K(1), one H(11), and one H(12) atom. Linkers: 2 [O]C(=O)CN(CC([O])=O)CC([O])=O. Metal clusters: 4 [K] ,2 [Ti]. The MOF has largest included sphere 1.66 A, density 2.00 g/cm3, surface area 1967.00 m2/g, accessible volume 0.05 cm3/g