Blue shift

{
  "id": "MLC-T-CHM-001398",
  "term": "Blue shift",
  "field": "Chemistry",
  "definition": "A shift of a spectral band to a higher frequency or shorter wavelength, observed in absorption, emission, or Raman spectra. This phenomenon is caused by changes in the chemical environment of the chromophore, such as a change in solvent polarity or the introduction of certain substituents onto the molecule. The term is the opposite of a red shift, which describes a shift to lower frequency or longer wavelength.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "hypsochromic shift"
  ],
  "references": [
    "PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2231 (https://doi.org/10.1351/pac199668122223)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/blue-shift/"
}