Electron paramagnetic resonance

{
  "id": "MLC-T-CHM-003732",
  "term": "Electron paramagnetic resonance",
  "field": "Chemistry",
  "definition": "A spectroscopic technique that detects species with unpaired electrons, such as free radicals, transition metal ions, and defects in solids. It involves the absorption of microwave radiation by these unpaired electrons in the presence of a strong magnetic field. The technique provides information about the electronic structure and environment of the paramagnetic species.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "angular momentum",
    "paramagnetic",
    "resonance",
    "spectroscopy"
  ],
  "references": [
    "PAC, 1989, 61, 2195. 'Recommendation for EPR/ESR nomenclature and conventions for presenting experimental data in publications (Recommendations 1989)' on page 2196 (https://doi.org/10.1351/pac198961122195)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/electron-paramagnetic-resonance/"
}