β,β′-Corrole dimers

Three corrole dimers were obtained by heating a 1,2,4-trichlorobenzene solution of 5,10,15-tris(pentafluorophenyl)corrole at 200 °C. The corrole units are linked by the β,β′-positions. In one of these dimers the corrole units are linked by the 2,2′,18,18′ carbons, giving rise to an eight-membered ring.