Year: 2024
Type: article
Abstract: Electrochemical oxidation of Zn(II) 2,7,12,17-tetra-tert-butylporphyrin in the presence of a series of azole derivatives (1-methylimidazole, 1-vinyl-1H-imidazole, 2-(1H-imidazol-1-yl)pyridine, 1-methylbenzimidazole, 1-methyl-1H-1,2,4-triazole, and benzothiazole) affords the corresponding meso-substituted azolium-porphyrins in very mild conditions and good yields. It was found that these nucleophiles were strongly ligated to the zinc(II) azolium-porphyrin complexes. Thus a demetalation/remetalation procedure was performed to recover the non-azole-coordinated zinc(II) complexes. X-ray crystallographic structures of three azolium-porphyrins were solved. Cyclic voltammetry analyses provided insight into the electron-withdrawing effect of the azolium substituents.
Source: ChemSusChem
Institutions: Centre National de la Recherche Scientifique, Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne, University of Chemistry and Technology, Prague, École Nationale Supérieure de Chimie de Montpellier, Université de Montpellier, Institut Charles Gerhardt Montpellier
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,330
Awards: Catalytic Properties of Molecular Systems Combining Porphyrins and N-Heterocyclic Carbene-Metal Complexes, G1295597519, G1813091, G2659019386, G3010527862, G3499920472, G3511535499, G5657551620, Ingénierie et Innovation par les sciences physiques, les savoir-faire technologiques et l'interdisciplinarité, G6803667113, Electrochemically-driven Pi-extension of porphyrins, Selective C-H bonds activation reactions catalyzed by N-heterocyclic carbene metal complexes linked to porphyrins, G7966083636, G971705793
OpenAlex ID: W4401734726