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Keyword: Triflate Counteranion (1)	21 Mar 2025	Run

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Synthesis, characterization and electrochemistry of bismuth porphyrins: X-ray crystal structure of (OEP)Bi(SO₃CF₃)
Journal of Porphyrins and Phthalocyanines01 Apr 2000
Preview Abstract
The metalation of several free base porphyrins by the bismuth salts Bi(NO₃)₃ and Bi(SO₃CF₃)₃ in DMF or pyridine is described. The resulting stable Bi(III) porphyrin complexes are characterized by electrochemistry, ¹H NMR and UV-vis spectroscopy. The structure of (OEP)Bi(SO₃CF₃) was also determined by single-crystal X-ray diffraction and shows that (OEP)Bi(SO₃CF₃) exists as a dimer which is stabilized by electrostatic interactions in which the two [(OEP)Bi]⁺ cations are linked via oxygen atoms of two symmetrically related anions, leading to a heptacoordinated bismuth center. Electrochemical oxidation of (OEP)Bi(SO₃CF₃) and (TpTP)Bi(SO₃CF₃) shows that only the porphyrin macrocycles are oxidized.