real spectrum

https://doi.org/10.1351/goldbook.08404

In nuclear magnetic resonance spectroscopy, one of two equally sized blocks of frequency data 90 ∘ out of phase to each other produced by Fourier transformation of the time domain signal.

Note: Usually only the real frequency data is displayed and in simple 1D spectra equates to the NMR signals being absorption mode (in-phase).
See also: imaginary spectrum
Source:
PAC, 2021, 93, 647. (Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)) on page 702 [Terms] [Paper]
Citation: 'real spectrum' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.08404 RIS BibTex EndNote
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