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Dissociative ionization

Term · Chemistry · MLC-T-CHM-003325

An ionization process in which a molecule gains or loses an electron, and simultaneously breaks into two or more fragment ions and neutral species. This often occurs when a high-energy electron or photon impacts a molecule, leading to both ionization and bond cleavage. It is a fundamental process in mass spectrometry.

Table 1. Record
IdentifierMLC-T-CHM-003325
FieldChemistry
SubjectPhysical and Biophysical Chemistry
ReferencesPAC, 1991, 63, 1541. 'Recommendations for nomenclature and symbolism for mass spectroscopy (including an appendix of terms used in vacuum technology). (Recommendations 1991)' on page 1547 (https://doi.org/10.1351/pac199163101541)
See alsoIonization
Record as JSON
{
  "id": "MLC-T-CHM-003325",
  "term": "Dissociative ionization",
  "field": "Chemistry",
  "definition": "An ionization process in which a molecule gains or loses an electron, and simultaneously breaks into two or more fragment ions and neutral species. This often occurs when a high-energy electron or photon impacts a molecule, leading to both ionization and bond cleavage. It is a fundamental process in mass spectrometry.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "ionization"
  ],
  "references": [
    "PAC, 1991, 63, 1541. 'Recommendations for nomenclature and symbolism for mass spectroscopy (including an appendix of terms used in vacuum technology). (Recommendations 1991)' on page 1547 (https://doi.org/10.1351/pac199163101541)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/dissociative-ionization/"
}

Record 3,536 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.