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Brønsted relation

Term · Chemistry · MLC-T-CHM-001513

A linear free-energy relationship that correlates the rate constant of a reaction with the acid or base strength of the catalyst. It describes how changes in the equilibrium constant for proton transfer affect the rate of proton-transfer reactions. The Brønsted exponent, derived from this relation, indicates the sensitivity of the reaction rate to catalyst strength.

Table 1. Record
IdentifierMLC-T-CHM-001513
FieldChemistry
SubjectPhysical and Biophysical Chemistry
ReferencesPAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1091 (https://doi.org/10.1351/pac199466051077); PAC, 1996, 68, 149. 'A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)' on page 154 (https://doi.org/10.1351/pac199668010149)
See alsoCatalysis; Catalytic coefficient; Dissociation; Leaving group; Linear free-energy relation; Nucleophilic catalysis; Proton transfer reaction
Record as JSON
{
  "id": "MLC-T-CHM-001513",
  "term": "Brønsted relation",
  "field": "Chemistry",
  "definition": "A linear free-energy relationship that correlates the rate constant of a reaction with the acid or base strength of the catalyst. It describes how changes in the equilibrium constant for proton transfer affect the rate of proton-transfer reactions. The Brønsted exponent, derived from this relation, indicates the sensitivity of the reaction rate to catalyst strength.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "catalysis",
    "catalytic coefficient",
    "dissociation",
    "leaving group",
    "linear free-energy relation",
    "nucleophilic catalysis",
    "proton transfer reaction"
  ],
  "references": [
    "PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1091 (https://doi.org/10.1351/pac199466051077)",
    "PAC, 1996, 68, 149. 'A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)' on page 154 (https://doi.org/10.1351/pac199668010149)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/bronsted-relation/"
}

Record 1,615 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.