A new paper by Wei Zheng titled "Phthalorubines (Prs): A New Class of Fused-ring Compounds Synthesized from Phthalonitrile" was accepted by Angewandte Chemie !
In this paper, a series of dibenzo[a,f][1,3,5]triazino[2,1,6-cd] pyrrolizine compounds have been synthesized from phthalonitriles, via a facile intramolecular cyclization process of “half-phthalocyanine” precursors, and were characterized by X-ray crystallography, 1H NMR, UV/Vis spectroscopy and theoretical calculations. These compounds have spectroscopic profiles similar to phthalocyanines and porphyrins, although their inner core structures and coordination types are totally different, and therefore, they can be regarded as a new class of aromatic fused-ring compounds. The low energy absorption of these new fused-ring compounds locate at ~600 nm. Such a low energy p-p* transition is scarce in aromatic compounds with similar molecular size. According to the nomenclature of phthalocyanines, these types of compounds are named as phthalorubines (Prs).
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