Synthesis of a metal-free texaphyrin.
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]
Hannah
S
S
Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, TX 78712, USA.
Lynch
V M
VM
Gerasimchuk
N
N
Magda
D
D
Sessler
J L
JL
D018360:Crystallography, X-Ray; D008670:Metals / Q000737:chemistry*; D015394:Molecular Structure; D011166:Porphyrins / Q000138:chemical synthesis* / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet
D008670:Metals; D011166:Porphyrins; C442892:texaphyrin