Imaginary NMR spectrum

{
  "id": "MLC-T-CHM-005596",
  "term": "Imaginary NMR spectrum",
  "field": "Chemistry",
  "definition": "The part of a complex nuclear magnetic resonance spectrum that is 90 degrees out of phase with the radiofrequency field of the spectrometer. After a Fourier transform of the free induction decay signal, the resulting spectrum has both a real and an imaginary component. The imaginary part displays absorption-mode peaks as dispersion-shaped signals, which are mathematically corrected during data processing to produce the final absorptive spectrum.",
  "synonyms": [
    "imaginary spectrum"
  ],
  "subject": "Analytical Chemistry",
  "see_also": [
    "nuclear magnetic resonance spectroscopy",
    "nuclear magnetic resonance spectrum"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 693 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/imaginary-nmr-spectrum/"
}