view article
Figure 14
Polarization of protons in R1 achieved by DNP (red dots) at frequencies below the EPR follows the EPR line. The latter is in arbitrary units. This is less visible at frequencies above the EPR line where the effect of DNP becomes weak. The estimated vertical error bar may slightly exceed the diameter of the red circles.

IUCrJ
Volume 12| Part 5| September 2025| Pages 570-581
ISSN: 2052-2525
https://doi.org/10.1107/S2052252525005871