[30]heptaphyrin(1.1.1.1.1.0.0): an aromatic expanded porphyrin with a 'figure eight' like structure

Chem Commun (Camb). 2002 Feb 21:(4):328-9. doi: 10.1039/b109877b.

Abstract

The synthesis, characterization, and X-ray structure of a heptapyrrolic macrocycle, [30]heptaphyrin(1.1.1.1.1.0.0) is reported; despite showing aromatic features, it exhibits a 'figure eight'-like structure in the solid state.