Generating para-water from para-hydrogen: A Gedankenexperiment

Konstantin L Ivanov; Geoffrey Bodenhausen

doi:10.1016/j.jmr.2018.05.003

Generating para-water from para-hydrogen: A Gedankenexperiment

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

Authors

Konstantin L Ivanov¹, Geoffrey Bodenhausen²

Affiliations

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.

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

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.