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Synthesis, characterization and electrochemistry of bismuth porphyrins: X-ray crystal structure of (OEP)Bi(SO₃CF₃)

Laboratoire de Synthèse et d'Electrosynthèse Organométalliques (UMR 5632), Université de Bourgogne, Faculté des Sciences, 6 Boulevard Gabriel, F-21000 Dijon, France

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DOMINIQUE FASSEUR

Laboratoire de Synthèse et d'Electrosynthèse Organométalliques (UMR 5632), Université de Bourgogne, Faculté des Sciences, 6 Boulevard Gabriel, F-21000 Dijon, France

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ROGER GUILARD

Laboratoire de Synthèse et d'Electrosynthèse Organométalliques (UMR 5632), Université de Bourgogne, Faculté des Sciences, 6 Boulevard Gabriel, F-21000 Dijon, France

Corresponding author: Laboratoire de Synthèse et d'Electrosynthèse Organométalliques (UMR 5632), Université de Bourgogne, Faculté des Sciences, 6 Boulevard Gabriel, F-21000 Dijon, France.

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ZHONGPING OU

Department of Chemistry, University of Houston, Houston, TX 77204-5641, USA

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KARL M. KADISH

Department of Chemistry, University of Houston, Houston, TX 77204-5641, USA

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SLIMANE DAHAOUI

Laboratoire de Cristallographie et Modélisation des Matériaux Minéraux et Biologiques, LCM3B, ESA CNRS 7036, Faculté des Sciences, Université Henri Poincaré, Nancy 1, BP 239, F-54506 Vandoeuvre-lès-Nancy Cedex, France

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, and

CLAUDE LECOMTE

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https://doi.org/10.1002/(SICI)1099-1409(200004/05)4:3<261::AID-JPP203>3.0.CO;2-BCited by:34 (Source: Crossref)

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.

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