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

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