Recent progress on the construction of supramolecular organic frameworks based on macrocyclic hosts

Abstract

Supramolecular organic frameworks (SOFs) are a class of highly ordered soluble soft materials, driven by non-covalent interactions. Over the last decade, the macrocyclic hosts are preferred to construct SOFs both...

Polypyridyl Ru(ii) or cyclometalated Ir(iii) functionalized architectures for photocatalysis

“…In the past two decades, well-defined architectures of MOFs, [9][10][11][12] COFs, [13][14][15] metallasupramolecules, [16][17][18] organic supramolecules [19][20][21] and SOFs [22][23][24][25] have received greater attention due to their rich and designable structures, modifiable pore space and tunable functionality. 26 These architectures provide the best models for the structure-property relationship study, and the well-organized skeletons commonly possess special functions for olefin separation in hierarchical porous MOFs 27,28 for enzyme separation in mesoporous COFs, 29,30 for unusual reactions in metallasupramolecules which act as molecular flasks, 31 for photodynamic therapy efficacy in organic supramolecules 32 and for accessible film production in SOFs.…”

NMR spectroscopy to study cyclodextrin-based host–guest assemblies with polynuclear clusters

“…The use of 13 C NMR in titration is rather rare due to the very poor sensitivity compared to 1 H NMR despite the considerable…”

“…As an example of such experiments, Fig. 7 shows the obtained 13 the difference in association constants measured for these clusters, K 1:1 = 1500 vs. 900 M −1 , respectively (see Table 2).…”

“…10,11 The construction of multifunctional assemblies based on supramolecular complexes usually involves the use of macrocyclic molecules to host various guest species. 5,12,13 Cyclodextrins (CDs) represent a group of macrocyclic oligosaccharides mainly constituted of 6, 7, or 8 D-glucopyranoside units. 14 Thus, the three renowned corresponding forms, i.e., α-, β-, and γ-CD, present a hydrophobic cavity of different diameter sizes depending on the number of the repeating glucopyranose group.…”

Recent advances in separation membranes based on porous organic molecular materials

“…The recent progress in the separation applications of these membranes is highlighted, including gas separation, liquid separation, ion separation and energy-related separation. It is worth noting that there are other emerging porous organic molecular materials that have been reported recently, such as SOFs, 31 porous organic salts, 32 etc. However, there has been no report on using these emerging systems for membrane separation application to the best of our knowledge, as the research on these areas still awaits unfolding.…”