Self-Assembly of a Water-Soluble Pd Square Bicupola Architecture and Its Use in Aerobic Oxidation in Aqueous Medium.

Designing supramolecular architectures with uncommon geometries has always been a key goal in the field of metal-ligand coordination-driven self-assembly. It acquires added significance if functional building units are employed in constructing such architectures for fruitful applications. In this report, we address both these aspects by developing a water-soluble PdL coordination cage with an unusual square orthobicupola geometry, which was used for selective aerobic oxidation of aryl sulfides.

Coordination-Induced Emissive Poly-NHC-Derived Metallacage for Pesticide Detection.

Developing sensitive, rapid, and convenient methods for the detection of residual toxic pesticides is immensely important to prevent irreversible damage to the human body. Luminescent metal-organic cages and macrocycles have shown great applications, and designing highly emissive supramolecular systems in dilute solution using metal-ligand coordination-driven self-assembly is demanded. In this study, we have demonstrated the development of a silver-carbene bond directed tetranuclear silver(I)-octacarbene metallacage [Ag(L)](PF) () based on an aggregation-induced emissive (AIE) cored 1,1',1″,1‴-((1,4-phenylenebis(ethene-2,1,1-triyl))tetrakis(benzene-4,1-diyl))tetrakis(3-methyl-1-imidazol-3-ium) salt ().

Rigidification-Induced Emissive Metal-Carbene Complexes for Artificial Light Harvesting.

A tetraphenylethylene (TPE)-based flexible imidazolium () salt was used to develop a di-nuclear silver(I)-tetracarbene () complex. Coordination-induced rigidity upon formation of exhibited a 6-fold increase in emission intensity in acetonitrile compared to starting . Despite TPE being a well-known aggregation-induced emissive moiety, Ag--heterocyclic carbene (NHC) complex had a remarkably higher fluorescence emission (4-fold) in dilute solution when compared with in its aggregated state.