Errors in the Use of NMR to Test Molecular Mobility during a Chemical Reaction

29 March 2021, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

A study reported in The Journal of Physical Chemistry Letters (12 (2021) 2370) of “boosted mobility” measured by diffusion NMR experiments contains significant errors in data analysis and interpretation. We carefully reanalyzed the same data and find no evidence of boosted mobility, and we identify several sources of error.

Keywords

diffusion
diffusion NMR
enhanced diffusion
boosted mobility
time-resolved diffusion
Nuclear magnetic resonance (NMR)
pulsed field gradient spin echo
pulsed field gradient stimulated echo

Supplementary materials

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