A Potent Auto-Umpolung Ligand for Conjugative Radical Stabilization
Holthoff JM, Engelage E, Ruff A, Galazzo L, Bordignon E, Huber SM, Weiss R (2022)
Publication Type: Journal article
Publication year: 2022
Journal
Abstract
Carbenes with conjugatively connected redox system act as "auto-umpolung" ligands. Due to their electronic flexibility, they should also be particularly suitable to stabilize open-shell species. Herein, the first neutral radical of such sort is described in form of a dialkylamino-substituted bis(dicyanomethylene)cyclopropanide. Despite the absence of steric shielding, the radical is stable for an extended amount of time and was consequently characterized in solution via EPR measurements. These data and accompanying X-ray structural analyses indicate that the radical species is in equilibrium with aggregates (formed via pi-stacking) and dimers (obtained via sigma-bond formation between methylene carbons).
Involved external institutions
Germany (DE)How to cite
APA:
Holthoff, J.M., Engelage, E., Ruff, A., Galazzo, L., Bordignon, E., Huber, S.M., & Weiss, R. (2022). A Potent Auto-Umpolung Ligand for Conjugative Radical Stabilization. Chemistry - A European Journal. https://doi.org/10.1002/chem.202203149
MLA:
Holthoff, Jana M., et al. "A Potent Auto-Umpolung Ligand for Conjugative Radical Stabilization." Chemistry - A European Journal (2022).
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