Two-dimensional correlation spectrum

{
  "id": "MLC-T-CHM-012375",
  "term": "Two-dimensional correlation spectrum",
  "field": "Chemistry",
  "definition": "A graphical representation generated by two-dimensional correlation spectroscopy, displaying the correlation between spectral intensity changes at different wavenumbers or frequencies. It consists of a contour map with auto-peaks along the diagonal, indicating self-correlation, and cross-peaks off-diagonal, signifying synchronous or asynchronous changes between different spectral bands. This spectrum provides information on the sequence of molecular events.",
  "synonyms": [
    "2-D correlation spectrum"
  ],
  "subject": "Analytical Chemistry",
  "see_also": [
    "dynamic spectrum"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 677 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/two-dimensional-correlation-spectrum/"
}