Substituted α,β,γ-triazatetrabenzcorrole: an unusual reduction product of a phthalocyanine

Abstract

4,5-Dipentyldiiminoisoindoline 1 reacts with hexachlorodisilane (Si ₂ Cl ₆ ) to give the ring-contracted hydroxysilicon-α,β,γ-triazatetrabenzcorrole 4 which in solution photolyses giving the ring cleavage compounds 5 and 6; the stability of triazatetrabenzcorroles 4 and 7 with silicon and germanium as central elements is studied by UV–VIS spectroscopy.