Quadrupolar relaxation

{
  "id": "MLC-T-CHM-009724",
  "term": "Quadrupolar relaxation",
  "field": "Chemistry",
  "definition": "A nuclear magnetic resonance (NMR) relaxation mechanism that arises from the interaction of a quadrupolar nuclide's electric quadrupole moment with fluctuating electric field gradients at the nucleus. This interaction provides an efficient pathway for the nucleus to return to its equilibrium spin state, leading to faster relaxation times and broader NMR signals. It is a dominant relaxation mechanism for nuclei with spin I > 1/2.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "nuclear magnetic resonance spectroscopy",
    "quadrupolar nuclide"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 702 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/quadrupolar-relaxation/"
}