Duckett, Simon B. orcid.org/0000-0002-9788-6615, Rayner, Peter John orcid.org/0000-0002-6577-4117 and Richardson, Peter Michael orcid.org/0000-0002-6631-2459 (2020) The Detection and Reactivity of Silanols and Silanes Using Hyperpolarized 29Si Nuclear Magnetic Resonance. Angewandte Chemie International Edition. 201915098. pp. 2710-2714. ISSN 1433-7851
Abstract
Silanols and silanes are key precursors and intermediates for the synthesis of silicon-based materials. While their characterization and quantification using 29Si NMR has received significant attention, it is a technique that is limited by the low natural abundance of 29Si and its low sensitivity. Here, we describe a method using p-H2 to hyperpolarize 29Si. The observed signal enhancements, approaching 3000-fold at 11.7 T, would take many days of measurement for comparable results under Boltzmann conditions. The resulting signals are exploited to monitor the rapid reaction of tris(tert-butoxy)silanol with triflic anhydride in a T1 corrected process that allows for rapid quantification. These results demonstrate a novel route to quantify dynamic processes and intermediates in the synthesis of silicon materials.
Metadata
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Copyright, Publisher and Additional Information: | This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details. | ||||||
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Institution: | The University of York | ||||||
Academic Units: | The University of York > Faculty of Sciences (York) > Chemistry (York) | ||||||
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Depositing User: | Pure (York) | ||||||
Date Deposited: | 16 Dec 2019 11:10 | ||||||
Last Modified: | 06 Dec 2023 13:27 | ||||||
Published Version: | https://doi.org/10.1002/anie.201915098 | ||||||
Status: | Published | ||||||
Refereed: | Yes | ||||||
Identification Number: | https://doi.org/10.1002/anie.201915098 |