Electropolymerized films of vinyl-substituted polypyridine complexes: Synthesis, characterization, and applications

This review first summarizes various synthetic approaches to vinyl-substituted polypyridine ligands. Based on the polymerization efficiency of vinyl-substituted complexes and stability of the resulting polymeric films, four categories of substrates are distinguished and representative examples are then given. The characterizations of metallopolymeric films using different electrochemical, spectroscopic, and microscopic methods are introduced. Finally, recent applications of the title films in electrode coatings, electrocatalysis, electrogenerated chemiluminescence, and electrochromism are discussed.

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► Synthesis of vinyl-substituted polypyridines featuring elimination, olefination, Stille coupling, or Suzuki coupling reactions.
► Four categories of electropolymerization substrates with vinyl substituents are distinguished.
► Characterizations of metallopolymeric films using combined electrochemical, spectroscopic, and microscopic techniques.
► Electropolymerized films for electrocatalysis, ECL, electrode coating, and near-infrared electrochromism.