Octakis(2-pyridyl)porphyrazine and its neutral metal derivatives: UV?visible spectral, electrochemical, and photoactivity studies
Tetrapyrrolic porphyrazine macrocycles with externally appended 2-pyridyl rings were synthesized and characterized as to their spectroscopic, electrochemical, and photophysical properties. The investigated compounds are represented as [Py8PzH2], the unmetalated octakis(2-pyridyl)porphyrazine, and the metal complexes [Py8PzM], where M is MgII(H2O), CuII, ZnII, or CoII.