Dinuclear Zn Complex: Phenoxyl Radical Formation Driven by Superoxide Coordination

Squarcina, Andrea; Fehn, Dominik; Senft, Laura; Langer, Jens and Ivanovic-Burmazovic, Ivana (2021): Dinuclear Zn Complex: Phenoxyl Radical Formation Driven by Superoxide Coordination. In: Zeitschrift für Anorganische und Allgemeine Chemie, Vol. 647, No. 8: pp. 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.

• Item Type: Journal article
• Faculties: Chemistry and Pharmacy > Department of Chemistry
• Subjects: 500 Science > 540 Chemistry
• ISSN: 0044-2313
• Language: English