Lewis-Base Stabilization of the Parent Al(I) Hydride under Ambient Conditions

Mellerup, Soren K., Cui, Yunshu, Fantuzzi, Felipe, Schmid, Paul, Goettel, James T., Bélanger-Chabot, Guillaume, Arrowsmith, Merle, Krummenacher, Ivo, Ye, Qing, Engel, Volker, and others. (2019) Lewis-Base Stabilization of the Parent Al(I) Hydride under Ambient Conditions. Journal of the American Chemical Society, 141 (42). pp. 16954-16960. ISSN 0002-7863. (doi:10.1021/jacs.9b09128) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:98559)

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Official URL: https://doi.org/10.1021/jacs.9b09128

Abstract

Aluminum(III) is inherently electron deficient and therefore acts as a prototypical Lewis acid. Conversely, Al(I) is a rare, nucleophilic variant of aluminum that is thermodynamically unstable under ambient conditions. While attempts to stabilize and isolate Al(I) species have become increasingly successful, the parent Al(I) (i.e, Al–H) remains accessible only under extreme temperatures/pressures or matrix conditions. Here, we report the isolation of the parent Al(I) hydride under ambient conditions via the reduction of a Lewis-base-stabilized alkyldihaloalane. Computational and spectroscopic analyses indicate that the ground-state electronic configuration of this monomeric aluminum species is best described as an Al(I) hydride with non-negligible open-shell Al(III) singlet diradical character. These findings are also supported by reactivity studies, which reveal both the p-centered lone pair donating ability and the hydridic nature of the parent aluminene.

Item Type:	Article
DOI/Identification number:	10.1021/jacs.9b09128
Divisions:	Divisions > Division of Natural Sciences > Chemistry and Forensics
Funders:	Deutsche Forschungsgemeinschaft (https://ror.org/018mejw64) Coordenação de Aperfeicoamento de Pessoal de Nível Superior (https://ror.org/00x0ma614) Alexander von Humboldt Foundation (https://ror.org/012kf4317)
Depositing User:	Felipe Fantuzzi
Date Deposited:	30 Nov 2022 22:34 UTC
Last Modified:	05 Nov 2024 13:03 UTC
Resource URI:	https://kar.kent.ac.uk/id/eprint/98559 (The current URI for this page, for reference purposes)

University of Kent Author Information

Fantuzzi, Felipe.

Creator's ORCID:	https://orcid.org/0000-0002-8200-8262
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