Generating para-water from para-hydrogen: A Gedankenexperiment #DNPNMR

Ivanov, Konstantin L., and Geoffrey Bodenhausen. “Generating Para-Water from Para-Hydrogen: A Gedankenexperiment.” Journal of Magnetic Resonance 292 (July 1, 2018): 48–52.

A novel conceptual approach is described that is based on the transfer of hyperpolarization from para-hydrogen in view of generating a population imbalance between the two spin isomers of H2O. The approach is analogous to SABRE (Signal Amplification By Reversible Exchange) and makes use of the transfer of spin order from para-hydrogen to H2O in a hypothetical organometallic complex. The spin order transfer is expected to be most efficient at avoided level crossings. The highest achievable enrichment levels of para- and ortho-water are discussed.

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