Tetraaryltetraanthra[2,3]porphyrins: Synthesis, Structure, and Optical Properties

Abstract

A synthetic route to symmetrical tetra­aryl­tetra­anthra­[2,3]­porphyrins (Ar₄TAPs) was developed. Ar₄TAPs bearing various substituents in <i>meso</i>-phenyls and anthracene residues were prepared from the corresponding pyrrolic precursors. The synthesized porphyrins possess high solubility and exhibit remarkably strong absorption bands in the near-infrared region (790–950 nm). The scope of the method, selection of the peripheral substituents, choice of the metal, and their influence on the optical properties are discussed together with the first X-ray crystallographic data for anthraporphyrin