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Transition structure

Term · Chemistry · MLC-T-CHM-012241

A specific arrangement of atoms at the saddle point on a potential energy surface, representing the highest energy point along the reaction coordinate between reactants and products. It is an unstable configuration through which a chemical system must pass during a reaction. The transition structure has a lifetime on the order of femtoseconds and cannot be directly observed.

Table 1. Record
IdentifierMLC-T-CHM-012241
FieldChemistry
SubjectOrganic and Biomolecular Chemistry
ReferencesPAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1174 (https://doi.org/10.1351/pac199466051077)
See alsoActivated complex; Potential-energy surface; Col; Transition state
Record as JSON 
{
  "id": "MLC-T-CHM-012241",
  "term": "Transition structure",
  "field": "Chemistry",
  "definition": "A specific arrangement of atoms at the saddle point on a potential energy surface, representing the highest energy point along the reaction coordinate between reactants and products. It is an unstable configuration through which a chemical system must pass during a reaction. The transition structure has a lifetime on the order of femtoseconds and cannot be directly observed.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "activated complex",
    "potential-energy surface",
    "col",
    "transition state"
  ],
  "references": [
    "PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1174 (https://doi.org/10.1351/pac199466051077)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/transition-structure/"
}

Record 13,050 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.