Internal valence force field

{
  "id": "MLC-T-CHM-005974",
  "term": "Internal valence force field",
  "field": "Chemistry",
  "definition": "A model used in molecular mechanics and vibrational spectroscopy to describe the potential energy of a molecule based on its internal coordinates, such as bond lengths, bond angles, and dihedral angles. This force field employs a set of force constants to quantify the resistance to deformation of these internal coordinates. It is used to calculate molecular geometries and vibrational frequencies.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "angle",
    "force constants",
    "valence"
  ],
  "references": [
    "PAC, 1978, 50, 1707. 'Definition and Symbolism of Molecular Force Constants' on page 1709 (https://doi.org/10.1351/pac197850111707)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/internal-valence-force-field/"
}