Correlation time

{
  "id": "MLC-T-CHM-002605",
  "term": "Correlation time",
  "field": "Chemistry",
  "definition": "A measure of the average time a molecule or molecular segment retains its orientation or position before undergoing a substantial change due to rotational or translational diffusion. It characterizes the timescale of molecular motion in a system. In nuclear magnetic resonance (NMR) spectroscopy, correlation times are derived from relaxation rate measurements.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 684 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/correlation-time/"
}