Local molar polarizability

{
  "id": "MLC-T-CHM-006740",
  "term": "Local molar polarizability",
  "field": "Chemistry",
  "definition": "The complex molar polarizability of a medium, calculated from its complex dielectric function or refractive index with the Lorentz-Lorenz relation, which assumes that each molecule feels the Lorentz local field. Its imaginary part gives an absorption band free of the long-range dielectric effects that distort the shapes of very strong bands. Its SI unit is J⁻¹ C² m² mol⁻¹.",
  "synonyms": [
    "molar polarizability"
  ],
  "subject": "Analytical Chemistry",
  "see_also": [
    "band shape"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 753 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/local-molar-polarizability/"
}