58929-74-1Relevant articles and documents
Supramolecular assemblies based on Fe8L12 cubic metal-organic cages: Synergistic adsorption and spin-crossover properties
Gong, Yu,Gu, Zhi-Guo,Han, Wang-Kang,Hu, Qing-Tao,Li, Tao,Lu, Hui-Shu,Xu, Ya-Xin,Yan, Xiaodong,Zhang, Hai-Xia
, p. 4220 - 4224 (2020)
Two FeII8L12 cubic metal-organic cages were constructed with semi-rigid ligands and they further self-assembled into supramolecular assemblies with three different porous cavities. The supramolecular assemblies showed synergistic adsorption of
Self-assembly and self-organization of self-recognizing cyclophanes
Ashton, Peter R.,Chemin, Alexandre,Claessens, Christian G.,Menzer, Stephan,Stoddart, J. Fraser,White, Andrew J. P.,Williams, David J.
, p. 969 - 981 (2007/10/03)
An analysis is presented of the different contributions that give rise to the packing observed in the crystal structures of a wide range of bipyridinium-based molecular assemblies and supramolecular arrays. It is demonstrated how the various interactions - electrostatic, van der Waals, and π-π interactions - that contribute to the solid-state arrangement of these molecules and supermolecules can be utilized in order to design a series of tetracationic cyclophanes that can potentially self-organize in a highly ordered way in the solid state by virtue of the fact that they contain π-electron donors as well as π-electron acceptors. The syntheses of these cyclophanes is outlined and the tunability of the self-assembly methodology in their construction is demonstrated. One of these tetracationic cyclophanes - comprising π-electron-rich hydroquinone rings and π-electron-deficient bipyridinium units - has been shown to pack as highly ordered two-dimensional, mosaic-like sheets in the solid state. Its dicationic precursor also forms extended π-π-stacked layers in the solid state. An analogous cyclophane - containing two π-electron-rich resorcinol rings in place of the two hydroquinone rings - forms, in the solid state, one-dimensional arrays wherein the component resorcinol rings interact through then: parallel π-π stacking. It has also been established that the first of the aforementioned tetracationic cyclophanes forms a 1:1 adduct with ferrocene in both the solution and solid states. X-ray crystallography, performed on the 1:1 adduct, reveals that not only is the ferrocene molecule complexed in a π-π slacking sense within the tetracationic cyclophane, but the 1:1 adduct also packs in a manner that is remarkably similar to the supramolecular organization of the free cyclophane in the crystalline state.
