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Enhanced sensitivity of electron-nuclear double resonance (ENDOR) by cross polarisation and relaxation.

MPG-Autoren
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Rizzato,  R.
Research Group of Electron Paramagnetic Resonance, MPI for Biophysical Chemistry, Max Planck Society;

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Bennati,  M.
Research Group of Electron Paramagnetic Resonance, MPI for Biophysical Chemistry, Max Planck Society;

Externe Ressourcen

http://pubs.rsc.org/en/content/articlepdf/2014/cp/c3cp55395g
(Verlagsversion)

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2023959.pdf
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2023959_Suppl.pdf
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Zitation

Rizzato, R., & Bennati, M. (2014). Enhanced sensitivity of electron-nuclear double resonance (ENDOR) by cross polarisation and relaxation. Physical Chemistry Chemical Physics, 16(17), 7681-7685. doi:10.1039/C3CP55395G.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0019-1A32-1
Zusammenfassung
Electron-nuclear double resonance (ENDOR) is a method of choice to detect magnetic nuclei in the coordination sphere of paramagnetic molecules, but its sensitivity substantially suffers from saturation effects. Recently we introduced a new pulsed ENDOR experiment based on electron-nuclear cross polarisation (CP) transfer. Here we analyse the time evolution of the spin polarization in CP-ENDOR and show that CP combined with inherent fast relaxation leads to enhanced sensitivity as compared to Davies ENDOR.