Marcus-Coltrin path

{
  "id": "MLC-T-CHM-006955",
  "term": "Marcus-Coltrin path",
  "field": "Chemistry",
  "definition": "A trajectory over a potential energy surface that follows the outermost vibrational turning points of the species involved, so it cuts the corner of the minimum energy path. Marcus and Coltrin proposed it as a way to estimate quantum-mechanical tunnelling probability in atom-transfer reactions such as hydrogen transfer, the system being taken to move along this path. Because it is shorter than the minimum energy path, it gives larger tunnelling probabilities.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "potential-energy surface",
    "probability",
    "trajectory",
    "tunnelling"
  ],
  "references": [
    "PAC, 1996, 68, 149. 'A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)' on page 172 (https://doi.org/10.1351/pac199668010149)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/marcus-coltrin-path/"
}