Bis(imino)pyrazine-supported iron complexes

• Verfasst von: Regenauer, Nicolas I. [VerfasserIn]
• Verfasst von: Settele, Simon [VerfasserIn]
• Verfasst von: Wadepohl, Hubert [VerfasserIn]
• Verfasst von: Roşca, Dragoş-Adrian [VerfasserIn]
• Titel: Bis(imino)pyrazine-supported iron complexes
• Titelzusatz: ligand-based redox chemistry, dearomatization, and reversible C-C bond formation
• Verf.angabe: Nicolas I. Regenauer, Simon Settele, Eckhard Bill, Hubert Wadepohl, and Dragoş-Adrian Roşca
• E-Jahr: 2020
• Jahr: January 28, 2020
• Umfang: 9 S.
• Fussnoten: Gesehen am 06.04.2020
• Titel Quelle: Enthalten in: Inorganic chemistry
• Ort Quelle: Washington, DC : American Chemical Society, 1962
• Jahr Quelle: 2020
• Band/Heft Quelle: 59(2020), 4, Seite 2604-2612
• ISSN Quelle: 1520-510X
• DOI: doi:10.1021/acs.inorgchem.9b03665
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 169413329X

Abstract

Iron complexes supported by novel π-acidic bis(imino)pyrazine (PPzDI) ligands can be functionalized at the nonligated nitrogen atom, and this has a marked effect on the redox properties of the resulting complexes. Dearomatization is observed in the presence of cobaltocene, which reversibly reduces the pyrazine core and not the imine functionality, as observed in the case of the pyridinediimine-ligated iron analogues. The resulting ligand-based radical is prone to dimerization through the formation of a long carbon-carbon bond, which can be subsequently cleaved under mild oxidative conditions.