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the claim

Proton coupling occurs through chemical bonds and affects identical NMR-active nuclei

the verdict
SUPPORTED
the evidence backs this
Recorded sources
4 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Proton and nuclear spin coupling is mediated through chemical bonds and affects NMR-active nuclei, as demonstrated by numerous NMR studies and theoretical models.

The analysis

The claim is specific and testable regarding the physical mechanism of spin-spin coupling and its manifestation on NMR-active nuclei. The retrieved literature clearly supports that scalar (spin-spin) coupling is transmitted through chemical bonds and affects NMR-active nuclei (such as protons and heteronuclei), with no papers presenting refuting evidence against this well-established physical principle.

Evidence for · 4
Modeling of the Response of Hydrogen Bond Properties on an External Electric Field: Geometry, NMR Chemical Shift, Spin-Spin Scalar Coupling
Recorded source metadata

Ilya G. Shenderovich, Gleb S. Denisov. Modeling of the Response of Hydrogen Bond Properties on an External Electric Field: Geometry, NMR Chemical Shift, Spin-Spin Scalar Coupling. 2021. https://doi.org/10.3390/molecules26164967

Paper 0 details how scalar spin-spin coupling constants (J-coupling) operate through chemical bonds to reflect changes in specific distances and properties.

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More for · 3
Supramolecular covalency of halogen bonds revealed by NMR contact shifts in paramagnetic cocrystals.
Recorded source metadata

Sasikumar A, Novotný J, Chyba J, Kobera L, Marek R. Supramolecular covalency of halogen bonds revealed by NMR contact shifts in paramagnetic cocrystals.. 2025. https://doi.org/10.1039/d5sc05769h

Paper 1 discusses how spin transmission responsible for hyperfine/scalar interactions occurs through chemical bonds (through-bond spin transmission).

<i>J</i>-Resolved Molecular Fingerprinting by Parahydrogen Hyperpolarized Low-Field NMR.
Recorded source metadata

Zhang Z, Savukov I, Hilty C. <i>J</i>-Resolved Molecular Fingerprinting by Parahydrogen Hyperpolarized Low-Field NMR.. 2026. https://doi.org/10.1021/jacs.5c22871

Paper 2 demonstrates the measurement and simulation of homonuclear and heteronuclear scalar coupling constants between identical and distinct NMR-active nuclei.

Nuclear Spin-Spin Coupling Density Functions: Through-Bond and Through-Space Interactions.
Recorded source metadata

Lazzeretti P, Summa FF, Monaco G, Zanasi R. Nuclear Spin-Spin Coupling Density Functions: Through-Bond and Through-Space Interactions.. 2026. https://doi.org/10.1021/acs.jpca.5c03609

Paper 4 outlines the theoretical framework for through-bond nuclear spin-spin coupling density functions involving Ramsey terms.

The paper trail · every fact has a biography
first checked01 Aug 2026
judged → SUPPORTED · 8201 Aug 2026
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