Does anyone know where I can find numerical data for the $g$ tensor and hyperfine tensor for a nitroxide spin label where the nitrogen-14 atom has been replaced by a nitrogen-15 atom?

I'm really getting lost in the literature. I come from outside the field of biological EPR so it's very difficult to find the information I need from the plots and the jargon.

  • $\begingroup$ Some data here might be of use - it's actually a good paper with a large theoretical component and you can at least get ballpark numbers for $g$, A, and D. $\endgroup$ Jul 23, 2021 at 13:40
  • $\begingroup$ This could certainly be useful for getting familiar with the nomenclature, thank you. However, I don't think it discusses the case of 15N, unless I'm mistaken. Maybe the numbers are not too different from 14N, but I don't know. $\endgroup$
    – Ben
    Jul 23, 2021 at 13:57

1 Answer 1


I finally found this book by Derek Marsh:

Derek Marsh, "Spin-Label Electron Paramagnetic Resonance" (CRC Press, Boca Raton, 2019). DOI: 10.1201/9780429194634.

It has many tables and the basic theory going with them. I would strongly recommend it.


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