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Long-lived collision complex

Term · Chemistry · MLC-T-CHM-006765

An intermediate species formed during a chemical reaction when two reactant molecules collide and remain associated for a period significantly longer than a typical molecular vibration. This complex can undergo internal energy redistribution before dissociating into products or reforming reactants. Its existence implies a deep well on the potential energy surface.

Table 1. Record
IdentifierMLC-T-CHM-006765
FieldChemistry
SubjectPhysical and Biophysical Chemistry
ReferencesPAC, 1981, 53, 753. 'Symbolism and Terminology in Chemical Kinetics' on page 767 (https://doi.org/10.1351/pac198153030753)
See alsoCol; Collision complex; Intermediate
Record as JSON
{
  "id": "MLC-T-CHM-006765",
  "term": "Long-lived collision complex",
  "field": "Chemistry",
  "definition": "An intermediate species formed during a chemical reaction when two reactant molecules collide and remain associated for a period significantly longer than a typical molecular vibration. This complex can undergo internal energy redistribution before dissociating into products or reforming reactants. Its existence implies a deep well on the potential energy surface.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "col",
    "collision complex",
    "intermediate"
  ],
  "references": [
    "PAC, 1981, 53, 753. 'Symbolism and Terminology in Chemical Kinetics' on page 767 (https://doi.org/10.1351/pac198153030753)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/long-lived-collision-complex/"
}

Record 7,165 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.