MnC18H18S(N3O2)2 crystallizes in the triclinic P-1 space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent N(1), two equivalent N(3), and two equivalent O(1) atoms to form MnN4O2 octahedra that share corners with two equivalent S(1)O4 tetrahedra. Both Mn(1)-N(1) bond lengths are 2.26 Å. Both Mn(1)-N(3) bond lengths are 2.28 Å. Both Mn(1)-O(1) bond lengths are 2.21 Å. In the second Mn site, Mn(2) is bonded in a square co-planar geometry to two equivalent N(5) and two equivalent O(2) atoms. Both Mn(2)-N(5) bond lengths are 2.20 Å. Both Mn(2)-O(2) bond lengths are 2.16 Å. There are eighteen inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(6), and one C(7) atom. The C(1)-C(2) bond length is 1.39 Å. The C(1)-C(6) bond length is 1.39 Å. The C(1)-C(7) bond length is 1.51 Å. In the second C site, C(2) is bonded in a single-bond geometry to one C(1), one C(3), and one H(1) atom. The C(2)-C(3) bond length is 1.39 Å. The C(2)-H(1) bond length is 0.93 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(8) atom. The C(3)-C(4) bond length is 1.39 Å. The C(3)-C(8) bond length is 1.52 Å. In the fourth C site, C(4) is bonded in a single-bond geometry to one C(3), one C(5), and one H(2) atom. The C(4)-C(5) bond length is 1.39 Å. The C(4)-H(2) bond length is 0.93 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(6), and one C(9) atom. The C(5)-C(6) bond length is 1.38 Å. The C(5)-C(9) bond length is 1.51 Å. In the sixth C site, C(6) is bonded in a single-bond geometry to one C(1), one C(5), and one H(3) atom. The C(6)-H(3) bond length is 0.93 Å. In the seventh C site, C(7) is bonded in a 3-coordinate geometry to one C(1); one N(2); and two equivalent H(4,5) atoms. The C(7)-N(2) bond length is 1.46 Å. Both C(7)-H(4,5) bond lengths are 0.97 Å. In the eighth C site, C(8) is bonded in a 3-coordinate geometry to one C(3); one N(4); and two equivalent H(6,7) atoms. The C(8)-N(4) bond length is 1.46 Å. Both C(8)-H(6,7) bond lengths are 0.97 Å. In the ninth C site, C(9) is bonded in a 3-coordinate geometry to one C(5); one N(6); and two equivalent H(8,9) atoms. The C(9)-N(6) bond length is 1.46 Å. Both C(9)-H(8,9) bond lengths are 0.97 Å. In the tenth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(11), one N(2), and one H(10) atom. The C(10)-C(11) bond length is 1.35 Å. The C(10)-N(2) bond length is 1.37 Å. The C(10)-H(10) bond length is 0.93 Å. In the eleventh C site, C(11) is bonded in a distorted bent 120 degrees geometry to one C(10), one N(1), and one H(11) atom. The C(11)-N(1) bond length is 1.37 Å. The C(11)-H(11) bond length is 0.93 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one N(1), one N(2), and one H(12) atom. The C(12)-N(1) bond length is 1.32 Å. The C(12)-N(2) bond length is 1.35 Å. The C(12)-H(12) bond length is 0.93 Å. In the thirteenth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one N(4) and one H(13) atom. The C(13)-N(4) bond length is 1.36 Å. The C(13)-H(13) bond length is 0.93 Å. In the fourteenth C site, C(14) is bonded in a distorted bent 120 degrees geometry to one N(3) and one H(14) atom. The C(14)-N(3) bond length is 1.38 Å. The C(14)-H(14) bond length is 0.93 Å. In the fifteenth C site, C(15) is bonded in a trigonal planar geometry to one N(3), one N(4), and one H(15) atom. The C(15)-N(3) bond length is 1.31 Å. The C(15)-N(4) bond length is 1.34 Å. The C(15)-H(15) bond length is 0.93 Å. In the sixteenth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one C(17), one N(6), and one H(16) atom. The C(16)-C(17) bond length is 1.35 Å. The C(16)-N(6) bond length is 1.37 Å. The C(16)-H(16) bond length is 0.93 Å. In the seventeenth C site, C(17) is bonded in a distorted trigonal planar geometry to one C(16), one N(5), and one H(17) atom. The C(17)-N(5) bond length is 1.37 Å. The C(17)-H(17) bond length is 0.93 Å. In the eighteenth C site, C(18) is bonded in a trigonal planar geometry to one N(5), one N(6), and one H(18) atom. The C(18)-N(5) bond length is 1.32 Å. The C(18)-N(6) bond length is 1.34 Å. The C(18)-H(18) bond length is 0.93 Å. There are six inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Mn(1), one C(11), and one C(12) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one C(10), one C(12), and one C(7) atom. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one Mn(1), one C(14), and one C(15) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one C(13), one C(15), and one C(8) atom. In the fifth N site, N(5) is bonded in a distorted trigonal planar geometry to one Mn(2), one C(17), and one C(18) atom. In the sixth N site, N(6) is bonded in a trigonal planar geometry to one C(16), one C(18), and one C(9) atom. There are fifteen 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(4) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(6) atom. In the fourth H site, H(4,5) is bonded in a single-bond geometry to one C(7) atom. In the fifth H site, H(6,7) is bonded in a single-bond geometry to one C(8) atom. In the sixth H site, H(8,9) is bonded in a single-bond geometry to one C(9) atom. In the seventh H site, H(10) is bonded in a single-bond geometry to one C(10) atom. In the eighth H site, H(11) is bonded in a single-bond geometry to one C(11) atom. In the ninth H site, H(12) is bonded in a single-bond geometry to one C(12) atom. In the tenth H site, H(13) is bonded in a single-bond geometry to one C(13) atom. In the eleventh H site, H(14) is bonded in a single-bond geometry to one C(14) atom. In the twelfth H site, H(15) is bonded in a single-bond geometry to one C(15) atom. In the thirteenth H site, H(16) is bonded in a single-bond geometry to one C(16) atom. In the fourteenth H site, H(17) is bonded in a single-bond geometry to one C(17) atom. In the fifteenth H site, H(18) is bonded in a single-bond geometry to one C(18) atom. S(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SO4 tetrahedra that share  a cornercorner with one Mn(1)N4O2 octahedra. The corner-sharing octahedral tilt angles are 34°. The S(1)-O(1) bond length is 1.48 Å. The S(1)-O(2) bond length is 1.48 Å. The S(1)-O(3) bond length is 1.48 Å. The S(1)-O(4) bond length is 1.45 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Mn(1) and one S(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Mn(2) and one S(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one S(1) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one S(1) atom. Linkers: 2 c1cn(Cc2cc(Cn3ccnc3)cc(Cn3ccnc3)c2)cn1. Metal clusters: 2 [Mn]. The MOF has largest included sphere 4.45 A, density 1.39 g/cm3, surface area 4757.37 m2/g, accessible volume 0.24 cm3/g