A series of trans-pyridyl porphyrins, 5,15-di(pentafluorophenyl)-10,20-bis(2ꞌ/3ꞌ/4ꞌ-pyridyl)porphyrin (1−3), trans-dicationic pyridinium porphyrins, 5,15-di(pentafluorophenyl)-10,20-bis(2ꞌ/3ꞌ/4ꞌ-Nmethylpyridyl)porphyrins (4−6) and their copper(II) and zinc(II) derivatives were synthesized. These compounds were characterized using various spectroscopic methods, electrochemical and single crystal X-ray crystallographic studies. The trans-dicationic porphyrin derivatives exhibit red shifted absorption spectra ov…
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