AgH18(C2N)6 crystallizes in the monoclinic P2_1/c space group. Ag(1) is bonded in a distorted octahedral geometry to one N(1), one N(2), one N(3), one N(4), one N(5), and one N(6) atom. The Ag(1)-N(1) bond length is 2.55 Å. The Ag(1)-N(2) bond length is 2.52 Å. The Ag(1)-N(3) bond length is 2.53 Å. The Ag(1)-N(4) bond length is 2.49 Å. The Ag(1)-N(5) bond length is 2.42 Å. The Ag(1)-N(6) bond length is 2.31 Å. There are twelve inequivalent C sites. In the first C site, C(1) is bonded in a 3-coordinate geometry to one N(1) and two equivalent H(1,2) atoms. The C(1)-N(1) bond length is 1.48 Å. Both C(1)-H(1,2) bond lengths are 0.99 Å. In the second C site, C(2) is bonded in a 3-coordinate geometry to one N(2) and two equivalent H(3,4,5,6) atoms. The C(2)-N(2) bond length is 1.48 Å. Both C(2)-H(3,4,5,6) bond lengths are 0.99 Å. In the third C site, C(3) is bonded in a 3-coordinate geometry to one N(2) and two equivalent H(3,4,5,6) atoms. The C(3)-N(2) bond length is 1.48 Å. Both C(3)-H(3,4,5,6) bond lengths are 0.99 Å. In the fourth C site, C(4) is bonded in a 3-coordinate geometry to one N(3) and two equivalent H(7,8,9,10) atoms. The C(4)-N(3) bond length is 1.47 Å. Both C(4)-H(7,8,9,10) bond lengths are 0.99 Å. In the fifth C site, C(5) is bonded in a 3-coordinate geometry to one N(3) and two equivalent H(7,8,9,10) atoms. The C(5)-N(3) bond length is 1.48 Å. Both C(5)-H(7,8,9,10) bond lengths are 0.99 Å. In the sixth C site, C(6) is bonded in a 3-coordinate geometry to one N(1) and two equivalent H(11,12) atoms. The C(6)-N(1) bond length is 1.47 Å. Both C(6)-H(11,12) bond lengths are 0.99 Å. In the seventh C site, C(7) is bonded in a distorted trigonal non-coplanar geometry to one C(8); one N(1); and two equivalent H(13,14) atoms. The C(7)-C(8) bond length is 1.50 Å. The C(7)-N(1) bond length is 1.46 Å. Both C(7)-H(13,14) bond lengths are 0.99 Å. In the eighth C site, C(8) is bonded in a distorted linear geometry to one C(7) and one N(4) atom. The C(8)-N(4) bond length is 1.14 Å. In the ninth C site, C(9) is bonded in a distorted trigonal non-coplanar geometry to one C(10), one N(2), one H(15), and one H(16) atom. The C(9)-C(10) bond length is 1.49 Å. The C(9)-N(2) bond length is 1.46 Å. The C(9)-H(15) bond length is 0.99 Å. The C(9)-H(16) bond length is 0.99 Å. In the tenth C site, C(10) is bonded in a linear geometry to one C(9) and one N(5) atom. The C(10)-N(5) bond length is 1.13 Å. In the eleventh C site, C(11) is bonded in a 3-coordinate geometry to one C(12); one N(3); and two equivalent H(17,18) atoms. The C(11)-C(12) bond length is 1.48 Å. The C(11)-N(3) bond length is 1.46 Å. Both C(11)-H(17,18) bond lengths are 0.99 Å. In the twelfth C site, C(12) is bonded in a distorted linear geometry to one C(11) and one N(6) atom. The C(12)-N(6) bond length is 1.13 Å. There are six inequivalent N sites. In the first N site, N(5) is bonded in a bent 150 degrees geometry to one Ag(1) and one C(10) atom. In the second N site, N(6) is bonded in a bent 150 degrees geometry to one Ag(1) and one C(12) atom. In the third N site, N(1) is bonded in a distorted trigonal non-coplanar geometry to one Ag(1), one C(1), one C(6), and one C(7) atom. In the fourth N site, N(2) is bonded in a distorted trigonal non-coplanar geometry to one Ag(1), one C(2), one C(3), and one C(9) atom. In the fifth N site, N(3) is bonded in a distorted trigonal non-coplanar geometry to one Ag(1), one C(11), one C(4), and one C(5) atom. In the sixth N site, N(4) is bonded in a distorted bent 150 degrees geometry to one Ag(1) and one C(8) atom. There are eight inequivalent H sites. In the first H site, H(1,2) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(3,4,5,6) is bonded in a single-bond geometry to one C(2) atom. In the third H site, H(7,8,9,10) is bonded in a single-bond geometry to one C(4) atom. In the fourth H site, H(11,12) is bonded in a single-bond geometry to one C(6) atom. In the fifth H site, H(13,14) is bonded in a single-bond geometry to one C(7) atom. In the sixth H site, H(15) is bonded in a single-bond geometry to one C(9) atom. In the seventh H site, H(16) is bonded in a single-bond geometry to one C(9) atom. In the eighth H site, H(17,18) is bonded in a single-bond geometry to one C(11) atom. Linkers: 4 N#CCN1CCN(CC#N)CCN(CC#N)CC1. Metal clusters: 4 [Ag]. The MOF has largest included sphere 4.87 A, density 1.31 g/cm3, surface area 4085.90 m2/g, accessible volume 0.24 cm3/g