Singlet lifetime measurements in an all-proton chemically equivalent spin system by hyperpolarization and weak spin lock transfers

Physical Chemistry Chemical Physics : PCCP
Y ZhangAlexej Jerschow

Abstract

Hyperpolarized singlet states provide the opportunity for polarization storage over periods significantly longer than T1. Here, we show how the singlet state in a chemically equivalent proton spin system can be revealed by a weak power spin-lock. This procedure allowed the measurement of the lifetimes of the singlet state in protic solvents. The contributions of different intra- and intermolecular relaxation mechanisms to singlet lifetimes are investigated with this procedure.

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Citations

Dec 31, 2015·Journal of Magnetic Resonance·Stephen J DeVienceMatthew S Rosen
Jul 28, 2016·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Yuning ZhangAlexej Jerschow
Jun 22, 2016·Physical Chemistry Chemical Physics : PCCP·Stuart J ElliottMalcolm H Levitt
Feb 28, 2018·Angewandte Chemie·Jan-Bernd HövenerEduard Y Chekmenev
Jan 19, 2019·Physical Chemistry Chemical Physics : PCCP·Boris KharkovAlexej Jerschow
Apr 25, 2020·Physical Chemistry Chemical Physics : PCCP·Christian BengsMalcolm H Levitt
Feb 17, 2019·The Journal of Chemical Physics·S J ElliottM H Levitt
May 3, 2020·The Journal of Chemical Physics·Bogdan A RodinMalcolm H Levitt
Feb 3, 2021·Magma·Francesca ReineriSilvio Aime
Sep 20, 2017·Journal of Magnetic Resonance·B KharkovA Jerschow
Apr 29, 2021·Physical Chemistry Chemical Physics : PCCP·Giulia MelchiorreGiuseppe Pileio
May 14, 2021·Frontiers in Chemistry·Aliki MoysiadiGiuseppe Pileio
Mar 14, 2017·The Journal of Physical Chemistry. C, Nanomaterials and Interfaces·Dudari B BuruevaIgor V Koptyug
Mar 12, 2019·Analytical Chemistry·Oleg G SalnikovEduard Y Chekmenev

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