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J Magn Reson. 2018 Jul;292:48-52. doi: 10.1016/j.jmr.2018.05.003. Epub 2018 May 17.

Generating para-water from para-hydrogen: A Gedankenexperiment.

Author information

1
International Tomography Center SB RAS, Institutskaya 3a, Novosibirsk 630090, Russia; Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russia. Electronic address: ivanov@tomo.nsc.ru.
2
Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France.

Abstract

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.

KEYWORDS:

Hyperpolarization; Para-hydrogen; Para-water

PMID:
29778834
DOI:
10.1016/j.jmr.2018.05.003

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