RbC11N4H2O(CH)3 crystallizes in the monoclinic P2_1/c space group. The structure consists of four propylene molecules inside a RbC11N4H2O framework. In the RbC11N4H2O framework, Rb(1) is bonded to one N(1), one N(3), one N(4), two equivalent N(2), and one O(1) atom to form distorted corner-sharing RbN5O pentagonal pyramids. The Rb(1)-N(1) bond length is 2.98 Å. The Rb(1)-N(3) bond length is 3.13 Å. The Rb(1)-N(4) bond length is 2.97 Å. There is one shorter (3.04 Å) and one longer (3.07 Å) Rb(1)-N(2) bond length. The Rb(1)-O(1) bond length is 2.87 Å. There are eleven inequivalent C sites. In the first C site, C(1) is bonded in a distorted single-bond geometry to one C(2), one C(9), and one O(1) atom. The C(1)-C(2) bond length is 1.53 Å. The C(1)-C(9) bond length is 1.47 Å. The C(1)-O(1) bond length is 1.23 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(4) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-C(4) bond length is 1.41 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(2), one C(7), and one C(8) atom. The C(3)-C(7) bond length is 1.41 Å. The C(3)-C(8) bond length is 1.41 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(2), one C(5), and one C(6) atom. The C(4)-C(5) bond length is 1.41 Å. The C(4)-C(6) bond length is 1.41 Å. In the fifth C site, C(5) is bonded in a distorted linear geometry to one C(4) and one N(4) atom. The C(5)-N(4) bond length is 1.17 Å. In the sixth C site, C(6) is bonded in a distorted linear geometry to one C(4) and one N(2) atom. The C(6)-N(2) bond length is 1.17 Å. In the seventh C site, C(7) is bonded in a distorted linear geometry to one C(3) and one N(1) atom. The C(7)-N(1) bond length is 1.17 Å. In the eighth C site, C(8) is bonded in a distorted linear geometry to one C(3) and one N(3) atom. The C(8)-N(3) bond length is 1.17 Å. In the ninth C site, C(9) is bonded in a trigonal planar geometry to one C(1), one C(10), and one C(14) atom. The C(9)-C(10) bond length is 1.41 Å. The C(9)-C(14) bond length is 1.41 Å. In the tenth C site, C(10) is bonded in a distorted single-bond geometry to one C(9) and one H(1) atom. The C(10)-H(1) bond length is 1.09 Å. In the eleventh C site, C(14) is bonded in a distorted single-bond geometry to one C(9) and one H(5) atom. The C(14)-H(5) bond length is 1.09 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a distorted single-bond geometry to one Rb(1) and one C(7) atom. In the second N site, N(2) is bonded in a distorted single-bond geometry to two equivalent Rb(1) and one C(6) atom. In the third N site, N(3) is bonded in a distorted single-bond geometry to one Rb(1) and one C(8) atom. In the fourth N site, N(4) is bonded in a distorted single-bond geometry to one Rb(1) and one C(5) atom. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(10) atom. In the second H site, H(5) is bonded in a single-bond geometry to one C(14) atom. O(1) is bonded in a distorted single-bond geometry to one Rb(1) and one C(1) atom. Linkers: 4 N#C[C](C#N)C(C(=O)c1ccccc1)=C(C#N)C#N. Metal clusters: 4 [Rb]. The MOF has largest included sphere 2.38 A, density 1.63 g/cm3, surface area 4540.60 m2/g, accessible volume 0.09 cm3/g