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Keywords:

  • C[BOND]C coupling;
  • conjugation;
  • polymerization;
  • scanning tunneling microscopy;
  • surface chemistry
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On-surface synthesis enables the construction of defined nanostructures directly at surfaces through the covalent coupling of suitable organic precursors. These processes are carried out under ultrahigh-vacuum conditions and are monitored by scanning tunneling microscopy. In their Communication on page 4024 ff., A. Studer, H. Fuchs, and co-workers present a systematic study of the homocoupling of alkynes (Glaser coupling) as a versatile strategy for the construction of conjugated polymers at various metal surfaces.