Hyperpolarized fumarate via parahydrogen

Ripka, Barbara; Eills, James; Kouřilová, Hana; Leutzsch, Markus; Levitt, Malcolm H.; Münnemann, Kerstin

doi:10.1039/C8CC06636A

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Hyperpolarized fumarate via parahydrogen

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Citation

Ripka, B., Eills, J., Kouřilová, H., Leutzsch, M., Levitt, M. H., & Münnemann, K. (2018). Hyperpolarized fumarate via parahydrogen. Chemical Communications, 54(86), 12246-12249. doi:10.1039/C8CC06636A.

Cite as: https://hdl.handle.net/21.11116/0000-000A-7129-9

Abstract

We produce hyperpolarized [1-¹³C]fumarate in the proton nuclear spin singlet state by pairwise trans-addition of parahydrogen to a molecular precursor using a ruthenium-based catalyst in water. The proton singlet state is transformed into observable carbon magnetization by radiofrequency pulses to enhance the ¹³C signal by a factor of 1000 using 50% para-enriched hydrogen gas.