Synthesis of the porphyrin-fused porphyrin, [2]porphyracene

Abstract

A novel porphyrin-fused porphyrin is formed by an oligomerization reaction of a (porphyrinato)nickel complex with TeCl₄; the isolated compound, [2]porphyracene, was characterized by spectroscopic methods and direct observation using scanning tunnelling microscopy; the excitation energy value of 13460 cm^–1 (743 nm) is the lowest value reported for porphyrin dimers.

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