Group frequency

{
  "id": "MLC-T-CHM-005039",
  "term": "Group frequency",
  "field": "Chemistry",
  "definition": "A characteristic vibrational frequency in an infrared or Raman spectrum that is associated with the stretching or bending motion of a specific functional group within a molecule. These frequencies are relatively independent of the rest of the molecular structure, allowing for the identification of functional groups. For example, the carbonyl stretching frequency typically appears around 1700 cm⁻¹.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "vibrational spectroscopy",
    "wavenumber in vacuum"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 748 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/group-frequency/"
}