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Segawa TF, Doll A, Pribitzer S, et al. Copper ESEEM and HYSCORE through ultra-wideband chirp EPR spectroscopy. J Chem Phys. 2015;143(4):044201doi: 10.1063/1.4927088.
Segawa, T. F., Doll, A., Pribitzer, S., & Jeschke, G. (2015). Copper ESEEM and HYSCORE through ultra-wideband chirp EPR spectroscopy. The Journal of chemical physics, 143(4), 044201. https://doi.org/10.1063/1.4927088
Segawa, Takuya F, et al. "Copper ESEEM and HYSCORE through ultra-wideband chirp EPR spectroscopy." The Journal of chemical physics vol. 143,4 (2015): 044201. doi: https://doi.org/10.1063/1.4927088
Segawa TF, Doll A, Pribitzer S, Jeschke G. Copper ESEEM and HYSCORE through ultra-wideband chirp EPR spectroscopy. J Chem Phys. 2015 Jul 28;143(4):044201. doi: 10.1063/1.4927088. PMID: 26233121.
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J Chem Phys. 2015 Jul 28;143(4):044201. doi: 10.1063/1.4927088.

Copper ESEEM and HYSCORE through ultra-wideband chirp EPR spectroscopy.

The Journal of chemical physics

Takuya F Segawa, Andrin Doll, Stephan Pribitzer, Gunnar Jeschke

Affiliations

  1. ETH Zurich, Laboratory of Physical Chemistry, Vladimir-Prelog-Weg 2, CH-8093 Zurich, Switzerland.

PMID: 26233121 DOI: 10.1063/1.4927088

Abstract

The main limitation of pulse electron paramagnetic resonance (EPR) spectroscopy is its narrow excitation bandwidth. Ultra-wideband (UWB) excitation with frequency-swept chirp pulses over several hundreds of megahertz overcomes this drawback. This allows to excite electron spin echo envelope modulation (ESEEM) from paramagnetic copper centers in crystals, whereas up to now, only ESEEM of ligand nuclei like protons or nitrogens at lower frequencies could be detected. ESEEM spectra are recorded as two-dimensional correlation experiments, since the full digitization of the electron spin echo provides an additional Fourier transform EPR dimension. Thus, UWB hyperfine-sublevel correlation experiments generate a novel three-dimensional EPR-correlated nuclear modulation spectrum.

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