Yu, Cihang;
Leitch, Jamie A;
Gierlichs, Lukas;
Das, Sampurna;
Porch, Adrian;
Melen, Rebecca L;
Browne, Duncan L;
(2024)
Use of Microwave Dielectric Spectroscopy for the In Actu Assessment of Frustrated Lewis Pair Encounter Complexes.
Journal of the American Chemical Society
, 146
(29)
pp. 19809-19817.
10.1021/jacs.4c02736.
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Abstract
Frustrated Lewis pairs (FLPs) offer an important and promising paradigm for main group catalysis. Reported here is the use of microwave dielectric spectroscopy for the in actu detection of FLP encounter complexes. This technique focuses on the room-temperature measurement of the loss component of microwave permittivity (ε2) over the bandwidth from 0.5 to 6.8 GHz. The microwave loss measured for a Lewis pair in a toluene host solution is compared with the losses of the individual components when measured separately, and the difference in loss Δε2 is used to characterize the electrostatic interaction between the pair. The Δε2 value shows a direct correlation with an ability for the FLP encounter complex to split hydrogen gas and abstract hydrogen from γ-terpinene and has led to the identification of a novel FLP encounter complex, tris-pentafluorophenyl borane-eucalyptol pairing.
| Type: | Article |
|---|---|
| Title: | Use of Microwave Dielectric Spectroscopy for the In Actu Assessment of Frustrated Lewis Pair Encounter Complexes |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/jacs.4c02736 |
| Publisher version: | http://dx.doi.org/10.1021/jacs.4c02736 |
| Language: | English |
| Additional information: | Copyright © 2024 The Authors. Published by American Chemical Society. This publication is licensed under CC-BY 4.0, https://creativecommons.org/licenses/by/4.0/. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > UCL School of Pharmacy UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > UCL School of Pharmacy > Pharma and Bio Chemistry |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10197690 |
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