Worksheet: Electron Paramagnetic Resonance Spectra

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In this worksheet, we will practice describing sample preparation and data analysis methods in electron paramagnetic resonance (EPR) spectroscopy.

Q1:

Which of the following cannot be studied by EPR?

  • AFree radicals in the liquid or gas state
  • BComplexes containing more than one unpaired electron
  • CFree radicals in the solid state
  • DParamagnetic transition metal complexes
  • EDiamagnetic transition metal complexes

Q2:

Which of the following radicals is most likely responsible for the EPR spectrum shown?

  • ANO2
  • BCHCl2
  • COH
  • DCHCH22
  • ECH3

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