Coupling factor NMRD measurements

To reach this conclusion, Turke et al. investigated the experimental parameters that should affect the evaluation of DNP enhancement and found a condition where they believed complete saturation of the ESR line occurred with no sample heating for 15N,16D-4-oxo- TEMPO.71 From there, they measured actual enhancements of E = —170 at 0.35 T, yielding a coupling factor of p < 0.34 at 27 °C. This experimental DNP data more closely approaches the NMRD data in the accompanying paper by Ben-nati et al., where a coupling factor of p = 0.35 was determined at 25 °C, which corresponds to a maximum predicted DNP signal enhancement of Emax = 218.76 Electron-electron double resonance (ELDOR) experi-... 

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