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We report a convenient approach, the first of its kind, to construct a microscale non-metal@MOF composite catalytic host–guest system for an organic tandem reaction. The reported porous Cu4I4-MOF is able to reversibly adsorb molecular iodine at room temperature. The obtained I2@Cu4I4-MOF host–guest system can be a highly heterogeneous catalyst to promote the Friedel–Crafts alkylation of indoles with acetals in a one-pot two-step fashion under solvent-free conditions at room temperature. [ABSTRACT FROM AUTHOR]

Through dynamic spacer installation, five fluorescent metal–organic frameworks (MOFs) have been constructed based on a proto-MOF LIFM-28 and multivariate ligands as fluorophores. The emissions are tunable via insertion of fluorescent ligands, demonstrating a versatile approach for luminescence tuning by virtue of dynamic spacer installation using swing-role MOFs. [ABSTRACT FROM AUTHOR]

A series of isostructual aromatics⊂CdL2(OTs)2 (aromatics = benzene, toluene, o-xylene, m-xylene and p-xylene) supramolecular complexes were prepared based on aromatic templates. The CdL2(OTs)2 framework is stable and contains square-like hydrophobic channels. It can reversibly adsorb benzene, toluene, o-xylene, m-xylene and p-xylene in the liquid phase without the loss of its structural integrity. Furthermore, it exhibits a clear affinity for these aromatics according to the following order: xylene ＞ toluene ＞ benzene, and it effectively separates xylene/toluene/benzene mixtures in the liquid phase under ambient conditions. In addition, aromatics⊂CdL2(OTs)2 exhibits guest-dependent luminescence properties. [ABSTRACT FROM AUTHOR]