Fekete, M and Roy, SS and Duckett, SB (2020) A role for low concentration reaction intermediates in the signal amplification by reversible exchange process revealed by theory and experiment. In: Physical Chemistry Chemical Physics, 22 (9). pp. 5033-5037.
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Abstract
A route to monitor the involvement of less abundant species during the catalytic transfer of hyperpolarisation from parahydrogen into a substrate is detailed. It involves probing how the degree of hyperpolarisation transfer catalysis is affected by the magnetic field experienced by the catalyst during this process as a function of temperature. The resulting data allow the ready differentiation of the roles played by hard to detect and highly reactive complexes, such as Ir(H)2(NHC)(substrate)2(methanol)Cl, from dominant species such as Ir(H)2(NHC)(substrate)3Cl. The difference in behaviour results from changes in the interligand spin-spin coupling network within the active SABRE catalysts. © 2020 the Owner Societies.
| Item Type: | Journal Article |
|---|---|
| Publication: | Physical Chemistry Chemical Physics |
| Publisher: | Royal Society of Chemistry |
| Additional Information: | The copyright for this article belongs to the Authors. |
| Keywords: | Catalysts, Catalytic transfer; Dominant species; Exchange process; Low concentrations; Para-hydrogen; Reactive complexes; Signal amplifications; Spin-spin couplings, Reaction intermediates |
| Department/Centre: | Division of Chemical Sciences > Inorganic & Physical Chemistry |
| Date Deposited: | 24 Jan 2023 07:31 |
| Last Modified: | 24 Jan 2023 07:31 |
| URI: | https://eprints.iisc.ac.in/id/eprint/79396 |
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