In contrast to the prevalence of 1,3-dipolar cycloadditions, radical [3+2] annulations of alkynes are underexplored. Here, the authors describe [3+2] cycloadditions of various internal alkynes with readily accessible aliphatic aldehydes via photoinduced decatungstate catalysis.

We introduce a highly sensitive methodology that captures key vibrational signatures using surface-engineered, plasmonic, metal nanoparticles spontaneously encapsulated into protein liquid droplets allowing us to unveil the inner workings of biomolecular condensates in a droplet-by-droplet manner.

We develop an efficient strategy to increase the photoluminescence quantum yield of water-soluble gold clusters at the single-cluster level via formation of bis-Schiff base linkages, and its mechanism is deeply investigated.