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Published on: February 24, 2015
Synthesis of a metal-free texaphyrin
S Hannah1, V M Lynch, N Gerasimchuk
1Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, TX 78712, USA.
Abstract:
The synthesis of a metal-free form of texaphyrin, an aromatic porphyrin-like macrocycle, is described. Previously, texaphyrins could only be obtained reproducibly in the form of metal complexes. Using ferrocenium cation as the oxidizing agent and starting with a reduced porphyrinogen-like nonaromatic form of texaphyrin, we isolated, in good yield, the metal-free oxidized texaphyrin as its HPF(6) salt. This product was characterized by X-ray diffraction analysis, UV-vis spectroscopy, and cyclic voltammetry. [structure: see text]
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