Dinuclear Zn Complex: Phenoxyl Radical Formation Driven by Superoxide Coordination

Squarcina, Andrea; Fehn, Dominik; Senft, Laura; Langer, Jens und Ivanovic-Burmazovic, Ivana (2021): Dinuclear Zn Complex: Phenoxyl Radical Formation Driven by Superoxide Coordination. In: Zeitschrift für Anorganische und Allgemeine Chemie, Bd. 647, Nr. 8: S. 809-814

Abstract

The dinuclear zinc complex Zn2L2 (HL=2-{[[di(2-pyridyl)methyl](methyl)amino]methyl}phenol) has been synthesized and isolated as colorless crystals. The interaction of the compound with superoxide in anhydrous organic solvents has been evaluated by CV, stopped-flow Uv-vis, EPR and ESI-MS suggesting the binding and the activation of the coordinated superoxide, thanks to the Lewis acidity of the Zn(II) centers. The results obtained in this study highlight the formation of a Zn2L2-O-2(.-) intermediate and a metastable phenoxyl-radical driven by the coordinated superoxide.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Chemie und Pharmazie > Department Chemie
• Themengebiete: 500 Naturwissenschaften und Mathematik > 540 Chemie
• ISSN: 0044-2313
• Sprache: Englisch