Reversible Redox Ligand-Centered Reactivity in 2,6-Bisiminopyridine Aluminum Systems

M. Delgado-Collado, J. M. Delgado-Collado, H. Videa, P. J. Serrano-Laguna, M. A. Fuentes, E. Álvarez, A. Díaz Quintana, A. J. Martínez-Martínez, A. Rodríguez-Delgado, J. Cámpora, Inorg. Chem., 2024

https://doi.org/10.1021/acs.inorgchem.4c02664

We report the synthesis of cationic 2,6-bisiminopyridine organoaluminum complexes, [(BIP)AlR2]+, as stable BArF4– or PF6– salts, and their reversible single-electron reduction into well-defined paramagnetic species, [(BIP·)AlR2]. Four redox couples, [(BIP)AlR2]+/0, have been fully characterized through structural, spectroscopic, electrochemical and computational techniques.