Work

Post-Functionalization of Pyridine-Modified Electrodes via Anodic C–N Coupling

Year: 2026

Type: article

Abstract: The oxidation of 2,7,12,17-tetra- tert -butylporphyrin Zn(II) ( Zn-1 ) on a phenyl-pyridinyl-modified glassy carbon (GC) or Indium Tin Oxide (ITO) electrode resulted in the formation of a new C–N bond linking the porphyrin and pyridine units. This innovative post-functionalization grafting strategy was investigated using electrochemical, photophysical, structural, and surface characterizations, validating the expected structure and the involved mechanism. Additionally, a reference pyridinium-porphyrin compound was electrosynthesized by oxidizing Zn-1 in the presence of a slight excess of the corresponding phenyl-4-pyridinyl nucleophile. The physicochemical properties of this reference compound matched those of the functionalized porphyrin material.

Source: ACS electrochemistry.

DOI: 10.1021/acselectrochem.6c00014