CuC7N2H13O5 crystallizes in the triclinic P-1 space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent N(1), two equivalent O(1), and two equivalent O(5) atoms to form CuN2O4 octahedra that share corners with two equivalent Cu(2)N2O4 octahedra and corners with two equivalent C(1)H3N tetrahedra. The corner-sharing octahedral tilt angles are 52°. Both Cu(1)-N(1) bond lengths are 2.01 Å. Both Cu(1)-O(1) bond lengths are 2.09 Å. Both Cu(1)-O(5) bond lengths are 2.40 Å. In the second Cu site, Cu(2) is bonded to two equivalent N(2), two equivalent O(4), and two equivalent O(5) atoms to form distorted CuN2O4 octahedra that share corners with two equivalent Cu(1)N2O4 octahedra and corners with two equivalent C(7)H3N tetrahedra. The corner-sharing octahedral tilt angles are 52°. Both Cu(2)-N(2) bond lengths are 2.02 Å. Both Cu(2)-O(4) bond lengths are 2.03 Å. Both Cu(2)-O(5) bond lengths are 2.45 Å. There are seven inequivalent C sites. In the first C site, C(1) is bonded to one N(1), one H(7), one H(8), and one H(9) atom to form CH3N tetrahedra that share  a cornercorner with one Cu(1)N2O4 octahedra. The corner-sharing octahedral tilt angles are 60°. The C(1)-N(1) bond length is 1.47 Å. The C(1)-H(7) bond length is 1.09 Å. The C(1)-H(8) bond length is 1.10 Å. The C(1)-H(9) bond length is 1.09 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(1), and one O(2) atom. The C(2)-C(3) bond length is 1.50 Å. The C(2)-O(1) bond length is 1.28 Å. The C(2)-O(2) bond length is 1.27 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(5) atom. The C(3)-C(4) bond length is 1.40 Å. The C(3)-C(5) bond length is 1.41 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(3), one C(5), and one H(10) atom. The C(4)-C(5) bond length is 1.40 Å. The C(4)-H(10) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(3), one C(4), and one C(6) atom. The C(5)-C(6) bond length is 1.51 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(3), and one O(4) atom. The C(6)-O(3) bond length is 1.25 Å. The C(6)-O(4) bond length is 1.29 Å. In the seventh C site, C(7) is bonded to one N(2), one H(11), one H(12), and one H(13) atom to form CH3N tetrahedra that share  a cornercorner with one Cu(2)N2O4 octahedra. The corner-sharing octahedral tilt angles are 61°. The C(7)-N(2) bond length is 1.47 Å. The C(7)-H(11) bond length is 1.10 Å. The C(7)-H(12) bond length is 1.10 Å. The C(7)-H(13) bond length is 1.09 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded to one Cu(1), one C(1), one H(1), and one H(2) atom to form distorted corner-sharing NCuH2C tetrahedra. The N(1)-H(1) bond length is 1.04 Å. The N(1)-H(2) bond length is 1.02 Å. In the second N site, N(2) is bonded to one Cu(2), one C(7), one H(3), and one H(4) atom to form distorted corner-sharing NCuH2C tetrahedra. The N(2)-H(3) bond length is 1.03 Å. The N(2)-H(4) bond length is 1.03 Å. There are thirteen 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 N(2) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one N(2) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(2) and one O(5) atom. The H(5)-O(2) bond length is 1.71 Å. The H(5)-O(5) bond length is 0.99 Å. In the sixth H site, H(6) is bonded in a distorted single-bond geometry to one O(3) and one O(5) atom. The H(6)-O(3) bond length is 1.66 Å. The H(6)-O(5) bond length is 1.00 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(1) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(1) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(1) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(4) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(7) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(7) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(7) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Cu(1) and one C(2) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one C(2) and one H(5) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to one C(6) and one H(6) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Cu(2) and one C(6) atom. In the fifth O site, O(5) is bonded in a water-like geometry to one Cu(1), one Cu(2), one H(5), and one H(6) atom. Linkers: 1 [O]C(=O)c1cc(C([O])=O)c(C([O])=O)cc1C([O])=O. Metal clusters: 2 [Cu]. The MOF has largest included sphere 1.93 A, density 1.76 g/cm3, surface area 4039.40 m2/g, accessible volume 0.14 cm3/g