Dihydrogen Activation by Lithium- and Sodium-Aluminyls

Matthew Evans; Mathew Anker; Claire McMullin; Sam Neale; Martyn  Coles

doi:10.1002/anie.202108934

Dihydrogen Activation by Lithium- and Sodium-Aluminyls

Matthew Evans, Mathew Anker, Claire McMullin, Sam Neale, Martyn Coles

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

25 Citations (SciVal)

18 Downloads (Pure)

Abstract

To date, aluminyl anions have been exclusively isolated as their potassium salts. We report herein the synthesis of the lithium and sodium aluminyls, M₂[Al(NON^Dipp)]₂ (M=Li, Na. NON^Dipp=[O(SiMe₂NDipp)₂]²⁻; Dipp=2,6-iPr₂C₆H₃). Both compounds crystallize from non-coordinating solvent as “slipped” contacted dimeric pairs with strong M⋅⋅⋅π(aryl) interactions. Isolation from Et2O solution affords the monomeric ion pairs (NON^Dipp)Al-M(Et₂O)₂, which contain discrete Al−Li and Al−Na bonds. The ability of the full series of Li, Na and K aluminyls to activate dihydrogen is reported.

Original language	English
Pages (from-to)	22289-22292
Number of pages	4
Journal	Angewandte Chemie-International Edition
Volume	60
Issue number	41
Early online date	16 Aug 2021
DOIs	https://doi.org/10.1002/anie.202108934
Publication status	Published - 4 Oct 2021

Keywords

aluminyl anion
dihydrogen activation
lithium aluminyl
sodium aluminyl

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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10.1002/anie.202108934

FINAL_Corrected_Text_MPC_CLM.PDF
This is the peer reviewed version of the following article: Evans, M.J., Anker, M.D., McMullin, C.L., Neale, S.E. and Coles, M.P. (2021), Dihydrogen Activation by Lithium- and Sodium-Aluminyls. Angew. Chem. Int. Ed.., which has been published in final form at https://doi.org/10.1002/anie.202108934. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Accepted author manuscript, 614 KB

Cite this

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title = "Dihydrogen Activation by Lithium- and Sodium-Aluminyls",

abstract = "To date, aluminyl anions have been exclusively isolated as their potassium salts. We report herein the synthesis of the lithium and sodium aluminyls, M2[Al(NONDipp)]2 (M=Li, Na. NONDipp=[O(SiMe2NDipp)2]2−; Dipp=2,6-iPr2C6H3). Both compounds crystallize from non-coordinating solvent as “slipped” contacted dimeric pairs with strong M⋅⋅⋅π(aryl) interactions. Isolation from Et2O solution affords the monomeric ion pairs (NONDipp)Al-M(Et2O)2, which contain discrete Al−Li and Al−Na bonds. The ability of the full series of Li, Na and K aluminyls to activate dihydrogen is reported.",

keywords = "aluminyl anion, dihydrogen activation, lithium aluminyl, sodium aluminyl",

author = "Matthew Evans and Mathew Anker and Claire McMullin and Sam Neale and Martyn Coles",

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year = "2021",

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doi = "10.1002/anie.202108934",

language = "English",

volume = "60",

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AU - Evans, Matthew

AU - Anker, Mathew

AU - McMullin, Claire

AU - Neale, Sam

AU - Coles, Martyn

N1 - Funding Information: Ian Vorster is thanked for acquiring the DOSY and VT NMR data. This research made use of the R?poi (Victoria University of Wellington) and Balena (Bath) High Performance Computing (HPC) Services. Publisher Copyright: © 2021 Wiley-VCH GmbH

PY - 2021/10/4

Y1 - 2021/10/4

N2 - To date, aluminyl anions have been exclusively isolated as their potassium salts. We report herein the synthesis of the lithium and sodium aluminyls, M2[Al(NONDipp)]2 (M=Li, Na. NONDipp=[O(SiMe2NDipp)2]2−; Dipp=2,6-iPr2C6H3). Both compounds crystallize from non-coordinating solvent as “slipped” contacted dimeric pairs with strong M⋅⋅⋅π(aryl) interactions. Isolation from Et2O solution affords the monomeric ion pairs (NONDipp)Al-M(Et2O)2, which contain discrete Al−Li and Al−Na bonds. The ability of the full series of Li, Na and K aluminyls to activate dihydrogen is reported.

AB - To date, aluminyl anions have been exclusively isolated as their potassium salts. We report herein the synthesis of the lithium and sodium aluminyls, M2[Al(NONDipp)]2 (M=Li, Na. NONDipp=[O(SiMe2NDipp)2]2−; Dipp=2,6-iPr2C6H3). Both compounds crystallize from non-coordinating solvent as “slipped” contacted dimeric pairs with strong M⋅⋅⋅π(aryl) interactions. Isolation from Et2O solution affords the monomeric ion pairs (NONDipp)Al-M(Et2O)2, which contain discrete Al−Li and Al−Na bonds. The ability of the full series of Li, Na and K aluminyls to activate dihydrogen is reported.

KW - aluminyl anion

KW - dihydrogen activation

KW - lithium aluminyl

KW - sodium aluminyl

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DO - 10.1002/anie.202108934

M3 - Article

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EP - 22292

JO - Angewandte Chemie-International Edition

JF - Angewandte Chemie-International Edition

IS - 41

ER -

Dihydrogen Activation by Lithium- and Sodium-Aluminyls

Abstract

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Balena High Performance Computing (HPC) System

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Dihydrogen Activation by Lithium- and Sodium-Aluminyls

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Keywords

ASJC Scopus subject areas

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Balena High Performance Computing (HPC) System

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