Co3C18P3N7H18O9 crystallizes in the triclinic P-1 space group. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded to one N(1), one N(5), one O(3), one O(6), and one O(9) atom to form CoN2O3 trigonal bipyramids that share  a cornercorner with one C(1)PH2N tetrahedra,  a cornercorner with one C(2)PH2N tetrahedra,  a cornercorner with one C(3)PH2N tetrahedra,  a cornercorner with one P(1)CO3 tetrahedra,  a cornercorner with one P(2)CO3 tetrahedra, and  a cornercorner with one P(3)CO3 tetrahedra. The Co(1)-N(1) bond length is 2.29 Å. The Co(1)-N(5) bond length is 2.05 Å. The Co(1)-O(3) bond length is 1.98 Å. The Co(1)-O(6) bond length is 1.97 Å. The Co(1)-O(9) bond length is 1.97 Å. In the second Co site, Co(2) is bonded to one N(7), one O(1), one O(2), and one O(4) atom to form CoNO3 tetrahedra that share  a cornercorner with one P(2)CO3 tetrahedra and corners with two equivalent P(1)CO3 tetrahedra. The Co(2)-N(7) bond length is 1.99 Å. The Co(2)-O(1) bond length is 1.93 Å. The Co(2)-O(2) bond length is 1.91 Å. The Co(2)-O(4) bond length is 1.94 Å. In the third Co site, Co(3) is bonded to one N(2), one O(5), one O(7), and one O(8) atom to form CoNO3 tetrahedra that share  a cornercorner with one P(2)CO3 tetrahedra and corners with two equivalent P(3)CO3 tetrahedra. The Co(3)-N(2) bond length is 1.99 Å. The Co(3)-O(5) bond length is 1.91 Å. The Co(3)-O(7) bond length is 1.94 Å. The Co(3)-O(8) bond length is 1.93 Å. There are eighteen inequivalent C sites. In the first C site, C(1) is bonded to one P(1), one N(1), one H(1), and one H(2) atom to form distorted CPH2N tetrahedra that share  a cornercorner with one C(2)PH2N tetrahedra,  a cornercorner with one C(3)PH2N tetrahedra, and  a cornercorner with one Co(1)N2O3 trigonal bipyramid. The C(1)-P(1) bond length is 1.83 Å. The C(1)-N(1) bond length is 1.47 Å. The C(1)-H(1) bond length is 1.11 Å. The C(1)-H(2) bond length is 1.10 Å. In the second C site, C(2) is bonded to one P(2), one N(1), one H(3), and one H(4) atom to form distorted CPH2N tetrahedra that share  a cornercorner with one C(1)PH2N tetrahedra,  a cornercorner with one C(3)PH2N tetrahedra, and  a cornercorner with one Co(1)N2O3 trigonal bipyramid. The C(2)-P(2) bond length is 1.84 Å. The C(2)-N(1) bond length is 1.48 Å. The C(2)-H(3) bond length is 1.11 Å. The C(2)-H(4) bond length is 1.10 Å. In the third C site, C(3) is bonded to one P(3), one N(1), one H(5), and one H(6) atom to form distorted CPH2N tetrahedra that share  a cornercorner with one C(1)PH2N tetrahedra,  a cornercorner with one C(2)PH2N tetrahedra, and  a cornercorner with one Co(1)N2O3 trigonal bipyramid. The C(3)-P(3) bond length is 1.83 Å. The C(3)-N(1) bond length is 1.48 Å. The C(3)-H(5) bond length is 1.11 Å. The C(3)-H(6) bond length is 1.10 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one C(5), one N(2), and one H(7) atom. The C(4)-C(5) bond length is 1.37 Å. The C(4)-N(2) bond length is 1.38 Å. The C(4)-H(7) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(4), one N(3), and one H(8) atom. The C(5)-N(3) bond length is 1.39 Å. The C(5)-H(8) bond length is 1.08 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one N(2), one N(3), and one H(9) atom. The C(6)-N(2) bond length is 1.33 Å. The C(6)-N(3) bond length is 1.37 Å. The C(6)-H(9) bond length is 1.08 Å. In the seventh C site, C(7) is bonded in a distorted trigonal planar geometry to one C(15), one C(8), and one N(3) atom. The C(7)-C(15) bond length is 1.40 Å. The C(7)-C(8) bond length is 1.40 Å. The C(7)-N(3) bond length is 1.41 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(10) atom. The C(8)-C(9) bond length is 1.40 Å. The C(8)-H(10) bond length is 1.09 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(13), one C(8), and one N(4) atom. The C(9)-C(13) bond length is 1.40 Å. The C(9)-N(4) bond length is 1.41 Å. In the tenth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(11), one N(4), and one H(11) atom. The C(10)-C(11) bond length is 1.37 Å. The C(10)-N(4) bond length is 1.39 Å. The C(10)-H(11) bond length is 1.08 Å. In the eleventh C site, C(11) is bonded in a 3-coordinate geometry to one C(10), one N(5), and one H(12) atom. The C(11)-N(5) bond length is 1.38 Å. The C(11)-H(12) bond length is 1.08 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one N(4), one N(5), and one H(13) atom. The C(12)-N(4) bond length is 1.37 Å. The C(12)-N(5) bond length is 1.32 Å. The C(12)-H(13) bond length is 1.08 Å. In the thirteenth C site, C(13) is bonded in a distorted single-bond geometry to one C(14), one C(9), and one H(14) atom. The C(13)-C(14) bond length is 1.39 Å. The C(13)-H(14) bond length is 1.09 Å. In the fourteenth C site, C(14) is bonded in a distorted trigonal planar geometry to one C(13), one C(15), and one N(6) atom. The C(14)-C(15) bond length is 1.40 Å. The C(14)-N(6) bond length is 1.41 Å. In the fifteenth C site, C(15) is bonded in a distorted single-bond geometry to one C(14), one C(7), and one H(15) atom. The C(15)-H(15) bond length is 1.09 Å. In the sixteenth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one N(6) and one H(16) atom. The C(16)-N(6) bond length is 1.39 Å. The C(16)-H(16) bond length is 1.08 Å. In the seventeenth C site, C(17) is bonded in a distorted bent 120 degrees geometry to one N(7) and one H(17) atom. The C(17)-N(7) bond length is 1.39 Å. The C(17)-H(17) bond length is 1.08 Å. In the eighteenth C site, C(18) is bonded in a trigonal planar geometry to one N(6), one N(7), and one H(18) atom. The C(18)-N(6) bond length is 1.37 Å. The C(18)-N(7) bond length is 1.33 Å. The C(18)-H(18) bond length is 1.09 Å. There are three inequivalent P sites. In the first P site, P(1) is bonded to one C(1), one O(1), one O(2), and one O(3) atom to form PCO3 tetrahedra that share  a cornercorner with one N(1)CoC3 tetrahedra, corners with two equivalent Co(2)NO3 tetrahedra, and  a cornercorner with one Co(1)N2O3 trigonal bipyramid. The P(1)-O(1) bond length is 1.55 Å. The P(1)-O(2) bond length is 1.54 Å. The P(1)-O(3) bond length is 1.54 Å. In the second P site, P(2) is bonded to one C(2), one O(4), one O(5), and one O(6) atom to form PCO3 tetrahedra that share  a cornercorner with one Co(2)NO3 tetrahedra,  a cornercorner with one Co(3)NO3 tetrahedra,  a cornercorner with one N(1)CoC3 tetrahedra, and  a cornercorner with one Co(1)N2O3 trigonal bipyramid. The P(2)-O(4) bond length is 1.54 Å. The P(2)-O(5) bond length is 1.55 Å. The P(2)-O(6) bond length is 1.54 Å. In the third P site, P(3) is bonded to one C(3), one O(7), one O(8), and one O(9) atom to form PCO3 tetrahedra that share  a cornercorner with one N(1)CoC3 tetrahedra, corners with two equivalent Co(3)NO3 tetrahedra, and  a cornercorner with one Co(1)N2O3 trigonal bipyramid. The P(3)-O(7) bond length is 1.53 Å. The P(3)-O(8) bond length is 1.55 Å. The P(3)-O(9) bond length is 1.54 Å. There are seven inequivalent N sites. In the first N site, N(1) is bonded to one Co(1), one C(1), one C(2), and one C(3) atom to form distorted NCoC3 tetrahedra that share  a cornercorner with one P(1)CO3 tetrahedra,  a cornercorner with one P(2)CO3 tetrahedra, and  a cornercorner with one P(3)CO3 tetrahedra. In the second N site, N(2) is bonded in a trigonal planar geometry to one Co(3), one C(4), and one C(6) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one C(5), one C(6), and one C(7) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one C(10), one C(12), and one C(9) atom. In the fifth N site, N(5) is bonded in a trigonal planar geometry to one Co(1), one C(11), and one C(12) atom. In the sixth N site, N(6) is bonded in a trigonal planar geometry to one C(14), one C(16), and one C(18) atom. In the seventh N site, N(7) is bonded in a trigonal planar geometry to one Co(2), one C(17), and one C(18) atom. There are eighteen inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(1) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(2) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(2) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(3) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(3) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(4) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(5) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(6) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(8) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(10) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(11) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(12) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(13) atom. In the fifteenth H site, H(15) is bonded in a single-bond geometry to one C(15) atom. In the sixteenth H site, H(16) is bonded in a single-bond geometry to one C(16) atom. In the seventeenth H site, H(17) is bonded in a single-bond geometry to one C(17) atom. In the eighteenth H site, H(18) is bonded in a single-bond geometry to one C(18) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Co(2) and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Co(2) and one P(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Co(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Co(2) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Co(3) and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Co(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Co(3) and one P(3) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Co(3) and one P(3) atom. In the ninth O site, O(9) is bonded in a bent 120 degrees geometry to one Co(1) and one P(3) atom. Linkers: 2 c1cn(-c2cc(-n3ccnc3)cc(-n3ccnc3)c2)cn1. Metal clusters: 6 [Co]. The MOF has largest included sphere 5.01 A, density 1.40 g/cm3, surface area 3492.73 m2/g, accessible volume 0.35 cm3/g