Thermolysis of Organofluoroborate Ionic Liquids to NHC-Organofluoroborates

Clarke, Coby J.; Richardson, Nathan; Firth, Anton E.J.; Hallett, Jason P.; Licence, Peter

Abstract

A range of dialkylimidazolium organotrifluoroborate ionic liquids were prepared by anion metathesis from newly available potassium organotrifluoroborate salts, and their physical properties were characterized by TGA, DSC, and STA. Thermal decomposition was subsequently investigated under vacuum with direct insertion mass spectrometry to determine whether thermolysis was a viable route to prepare N-heterocyclic carbene organofluoroborates, which are an important class of emerging compounds. Several key targets were identified, which highlighted the potential to shortcut complex synthetic methodologies otherwise required to access such molecules.

Citation

Clarke, C. J., Richardson, N., Firth, A. E., Hallett, J. P., & Licence, P. (2020). Thermolysis of Organofluoroborate Ionic Liquids to NHC-Organofluoroborates. ACS Sustainable Chemistry and Engineering, 8(44), 16386–16390. https://doi.org/10.1021/acssuschemeng.0c06377

• Journal Article Type: Article
• Acceptance Date: Oct 22, 2020
• Online Publication Date: Oct 26, 2020
• Publication Date: Nov 9, 2020
• Deposit Date: Oct 23, 2020
• Publicly Available Date: Oct 27, 2021
• Journal: ACS Sustainable Chemistry & Engineering
• Electronic ISSN: 2168-0485
• Publisher: American Chemical Society
• Peer Reviewed: Peer Reviewed
• Volume: 8
• Issue: 44
• Pages: 16386–16390
• DOI: https://doi.org/10.1021/acssuschemeng.0c06377
• Keywords: Ionic liquids, Thermolysis, Organofluoroborates, Direct insertion mass spectrometry, Tetrafluoroborates
• Public URL: https://nottingham-repository.worktribe.com/output/4985477
• Publisher URL: https://pubs.acs.org/doi/10.1021/acssuschemeng.0c06377
• Additional Information: This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Sustainable Chemistry and Engineering ,copyright© American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acssuschemeng.0c06377