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A graphdiyne analogue featuring pyrazine as the aromatic center was synthesized under air using a liquid/liquid interfacial synthesis. It served as a metal-free electrocatalyst for the hydrogen evolution reaction (HER) from water.

CuAAC between a triangular terminal alkyne and azide monomers at a water/dichloromethane interface generates a triazole-linked polymer nanofilm with a large aspect ratio. The nanofilm resists hydrolysis, and pyrolysis up to 300 °C.

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Heterolaminated bis(terpyridine)metal films have been prepared by sequential coordination at the H2O/CH2Cl2 interface. In the reaction, metal ions permeate the grown films from the aqueous phase to react with the terpyridine ligand on the organic‐phase side. The heterolaminated films show unique redox behavior based on electron transfer mediation, and a stable rectification character owing to the difference in electron transfer kinetics between the two layers. More information can be found in the Research Article by H. Nishihara and co‐workers (DOI: 10.1002/chem.202201316).