Spin-spin coupling constant

{
  "id": "MLC-T-CHM-011224",
  "term": "Spin-spin coupling constant",
  "field": "Chemistry",
  "definition": "A parameter that quantifies the interaction between the nuclear spins of different atoms in a molecule, mediated by the bonding electrons. This interaction leads to the splitting of signals in nuclear magnetic resonance (NMR) spectra, providing structural information. It is denoted by 'J' and measured in hertz (Hz).",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "coefficient",
    "hamiltonian operator",
    "resonance",
    "spin-spin coupling"
  ],
  "references": [
    "Green Book, 2nd ed., p. 15 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/spin-spin-coupling-constant/"
}