An Amine–Borane System Featuring Room-Temperature Dehydrogenation and Regeneration

Publication Name

Angewandte Chemie - International Edition

Abstract

Amine–borane complexes have been extensively studied as hydrogen storage materials. Herein, we report a new amine–borane system featuring a reversible dehydrogenation and regeneration at room temperature. In addition to high purity H , the reaction between ethylenediamine bisborane (EDAB) and ethylenediamine (ED) leads to unique boron–carbon–nitrogen 5-membered rings in the dehydrogenation product where one boron is tricoordinated by three nitrogen atoms. Owing to the unique cyclic structure, the dehydrogenation product can be efficiently converted back to EDAB by NaBH and H O at room temperature. This finding could lead to the discovery of new amine boranes with potential usage as hydrogen storage materials. 2 4 2

Open Access Status

This publication is not available as open access

Volume

60

Issue

21

First Page

11725

Last Page

11729

Funding Number

DP170101773

Funding Sponsor

Alexander von Humboldt-Stiftung

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Link to publisher version (DOI)

http://dx.doi.org/10.1002/anie.202017302