Copper ESEEM and HYSCORE through ultra-wideband chirp EPR spectroscopy

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

doi:10.1063/1.4927088

Title: Copper ESEEM and HYSCORE through ultra-wideband chirp EPR spectroscopy

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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.

Authors:

Segawa, Takuya F.; Doll, Andrin; Pribitzer, Stephan; Jeschke, Gunnar ^[1]

ETH Zurich, Laboratory of Physical Chemistry, Vladimir-Prelog-Weg 2, CH-8093 Zurich (Switzerland)

Publication Date:: Tue Jul 28 00:00:00 EDT 2015

OSTI Identifier:: 22493453

Resource Type:: Journal Article

Journal Name:: Journal of Chemical Physics

Additional Journal Information:: Journal Volume: 143; Journal Issue: 4; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-9606

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION SPECTRA; ABSORPTION SPECTROSCOPY; ACOUSTIC ESR; COPPER; CORRELATIONS; CRYSTALS; EXCITATION; FOURIER TRANSFORMATION; FREQUENCY DEPENDENCE; HYPERFINE STRUCTURE; LIGANDS; MODULATION; NITROGEN; PARAMAGNETISM; PROTONS; THREE-DIMENSIONAL LATTICES; TWO-DIMENSIONAL SYSTEMS

Citation Formats


                    Segawa, Takuya F., Doll, Andrin, Pribitzer, Stephan, and Jeschke, Gunnar. Copper ESEEM and HYSCORE through ultra-wideband chirp EPR spectroscopy.  United States: N. p., 2015. 
        Web.  doi:10.1063/1.4927088.

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                    Segawa, Takuya F., Doll, Andrin, Pribitzer, Stephan, & Jeschke, Gunnar. Copper ESEEM and HYSCORE through ultra-wideband chirp EPR spectroscopy.  United States.  https://doi.org/10.1063/1.4927088

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                    Segawa, Takuya F., Doll, Andrin, Pribitzer, Stephan, and Jeschke, Gunnar. 2015.  
        "Copper ESEEM and HYSCORE through ultra-wideband chirp EPR spectroscopy".  United States.  https://doi.org/10.1063/1.4927088.

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@article{osti_22493453,

  title        = {Copper ESEEM and HYSCORE through ultra-wideband chirp EPR spectroscopy},

  author       = {Segawa, Takuya F. and Doll, Andrin and Pribitzer, Stephan and Jeschke, Gunnar},

  abstractNote = {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.},

  doi          = {10.1063/1.4927088},

  url          = {https://www.osti.gov/biblio/22493453},
  journal      = {Journal of Chemical Physics},

  issn         = {0021-9606},

  number       = 4,

  volume       = 143,

  place        = {United States},

  year         = {Tue Jul 28 00:00:00 EDT 2015},

  month        = {Tue Jul 28 00:00:00 EDT 2015}

}

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