2026/06/12 by Enaya Ahmad, F. Aly, Damien Chang +12 · 1 voice
Engineering · Materials Science · Medicine · #Organic Light-Emitting Diodes Research #Photodynamic Therapy Research Studies #Porphyrin and Phthalocyanine Chemistry
paper · doi:10.1016/j.inoche.2026.117034
openalex created_date 2026/06/12 · openalex publication_date 2026/06/12 · openalex updated_date 2026/07/23
Zn(II) porphyrins bearing meso -phenyl groups with 1–4 fluoro-substitution have been synthesized and structurally characterized by single-crystal X-ray crystallography. Together with the known Zn(II) tetra-phenyl and Zn(II) pentafluorophenyl porphyrins, this homologous series of porphyrins enable a comprehensive description of the solid-state, solution and excited state properties of the tetrapyrrolic ring bearing meso -aryl groups with varying degrees of fluorination. Unlike fluoro-substitution at the β -position of the pyrrole ring, we show that increasing fluorination of the meso -phenyl groups of the Zn(II) porphyrin ring can occur without significantly changing steady state absorption and emission spectra and degrading the excited state properties of the porphyrin. Such increased fluorination may be beneficial to photo- therapeutic, −diagnostic and -imaging applications in biomedicine.