Articles | Volume 4, issue 1
Research article
12 Jan 2023
Research article |  | 12 Jan 2023

Intermolecular contributions, filtration effects and signal composition of SIFTER (single-frequency technique for refocusing)

Agathe Vanas, Janne Soetbeer, Frauke Diana Breitgoff, Henrik Hintz, Muhammad Sajid, Yevhen Polyhach, Adelheid Godt, Gunnar Jeschke, Maxim Yulikov, and Daniel Klose

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Magn. Reson., 1, 75–87,,, 2020
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Cited articles

Abdullin, D. and Schiemann, O.: Pulsed Dipolar EPR Spectroscopy and Metal Ions: Methodology and Biological Applications, ChemPlusChem, 85, 353–372,, 2020. a
Akhmetzyanov, D., Schöps, P., Marko, A., Kunjir, N. C., Sigurdsson, S. T., and Prisner, T. F.: Pulsed EPR dipolar spectroscopy at Q- and G-band on a trityl biradical, Phys. Chem. Chem. Phys., 17, 24446–24451,, 2015. a, b, c
Bahrenberg, T., Jahn, S. M., Feintuch, A., Stoll, S., and Goldfarb, D.: The decay of the refocused Hahn echo in double electron–electron resonance (DEER) experiments, Magn. Reson., 2, 161–173,, 2021. a, b
Borbat, P. P. and Freed, J. H.: Double-Quantum ESR and Distance Measurements, in: Distance Measurements in Biological Systems by EPR, edited by: Berliner, L. J., Eaton, G. R., and Eaton, S. S., 383–459, Springer US, Boston, MA,, 2002. a
Borbat, P. P. and Freed, J. H.: Dipolar spectroscopy – single-resonance methods, eMagRes, 6, 465–494,, 2017. a
Short summary
Nanometre distance measurements between spin labels by pulse EPR techniques yield structural information on the molecular level. Here, backed by experimental data, we derive a description for the total signal of the single-frequency technique for refocusing dipolar couplings (SIFTER), showing how the different spin–spin interactions give rise to dipolar signal and background – the latter has thus far been unknown.