correlation spectroscopy through long-range coupling

acronym: COLOC
https://doi.org/10.1351/goldbook.08324
Heteronuclear (typically \(\ce{^{13}C}\)) detected long range 2D correlation experiment in nuclear magnetic resonance spectroscopy that has mostly been superseded by heteronuclear multiple bond correlation (HMBC) experiments and its variants.
Note: COLOC is often used to show spin-spin coupling between hydrogen and carbon nuclei 2 and 3 bonds apart.
Source:
PAC, 2021, 93, 647. (Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)) on page 684 [Terms] [Paper]
Citation: 'correlation spectroscopy through long-range coupling' 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.08324 RIS BibTex EndNote
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