Inducing Nucleophilic Reactivity at Beryllium with an Aluminyl Ligand

Title	Inducing Nucleophilic Reactivity at Beryllium with an Aluminyl Ligand
Authors	Josef T. Boronski, Lewis R. Thomas-Hargreaves, Mathias A. Ellwanger, Agamemnon E. Crumpton, Jamie Hicks, Deniz F. Bekiş, Simon Aldridge, Magnus R. Buchner
Magazine	Journal of the American Chemical Society
Date	02/14/2023
DOI	https://doi.org/10.1021/jacs.3c00480
Introduction	The interaction of anionic aluminium or gallium nucleophiles with beryllocene results in the formation of Be–Al or Be–Ga bonds. The Be–Al bond in this complex is notably shorter than previous examples, indicating a unique non-nuclear attractor (NNA) in its electronic structure. Due to the comparable electronegativities of beryllium and aluminium, the beryllium centre exhibits less positive charge than the aluminium centre. This configuration suggests potential nucleophilic activity at beryllium, as evidenced by its reaction with N,N′-diisopropylcarbodiimide, leading to a beryllium–diaminocarbene complex.
Quote	Boronski, J.T.; Thomas-Hargreaves, L.R.; Ellwanger, M.A.; Crumpton, A.E.; Hicks, J.; Bekiş, D.F.; Aldridge, S.; Buchner, M.R. Inducing Nucleophilic Reactivity at Beryllium with an Aluminyl Ligand. J. Am. Chem. Soc. 2023, 145, 4408-4413. https://doi.org/10.1021/jacs.3c00480
Element	Aluminum (Al) , Beryllium (Be) , Gallium (Ga) , Carbon (C)