Cobalt and Iron Stabilized Ketyl, Ketiminyl and Aldiminyl Radical Anions. Issue 67 (22nd October 2021)

• Record Type: Journal Article
• Authors: Sieg, Grégoire; Pessemesse, Quentin; Reith, Sascha; Yelin, Stefan; Limberg, Christian; Munz, Dominik; Werncke, C. Gunnar
• Is Part Of: Chemistry. Volume 27:Issue 67(2021)
• Page Start: 16760
• Page End: 16767
• Publication Date: 2021-10-22
• Subjects: cobalt -- iron -- radical anions -- quantum chemical calculation -- spectroscopy; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.202103096
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract: Carbonyl and iminyl based radical anions are reactive intermediates in a variety of transformations in organic synthesis. Herein, the isolation of ketyl, and more importantly unprecedented ketiminyl and aldiminyl radical anions coordinated to cobalt and iron complexes is presented. Insights into the electronic structure of these unusual metal bound radical anions is provided by X‐Ray diffraction analysis, NMR, IR, UV/Vis and Mössbauer spectroscopy, solid and solution state magnetometry, as well as a by a detailed computational analysis. The metal bound radical anions are very reactive and facilitate the activation of intra‐ and intermolecular C−H bonds. Abstract : Herein, the isolation of ketyl, and more importantly ketiminyl and aldiminyl radical anions coordinated to cobalt‐ and iron is presented. Insights into the electronic structure of these unusual metal bound radical anions is provided by various analytical methods as well as by a detailed computational analysis. The metal bound radical anions are very reactive and facilitate the activation of intra‐ and intermolecular C−H bonds.