Jahn-Teller transition

{
  "id": "MLC-T-CHM-006277",
  "term": "Jahn-Teller transition",
  "field": "Chemistry",
  "definition": "A phase transition in a solid material driven by the Jahn-Teller effect, where a degenerate electronic state in a molecule or crystal distorts to lower its symmetry and remove the degeneracy. This distortion leads to a change in the crystal structure. It is observed in many transition metal compounds.",
  "subject": "Inorganic Chemistry",
  "see_also": [
    "degeneracy"
  ],
  "references": [
    "PAC, 1994, 66, 577. 'Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)' on page 584 (https://doi.org/10.1351/pac199466030577)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/jahn-teller-transition/"
}