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J-coupling

In nuclear chemistry and nuclear physics, J-couplings (also called spin-spin coupling or indirect dipole–dipole coupling) are mediated through chemical bonds connecting two spins. It is an indirect interaction between two nuclear spins that arises from hyperfine interactions between the nuclei and local electrons. In NMR spectroscopy, J-coupling contains…

History, Vector model and manifestations for chemical structure assignments & Decoupling

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History

H. S. GutowskyC. P. SlichterE. L. HahnDichloroacetaldehydeRadiofrequency
11 related topics

Vector model and manifestations for chemical structure assignments

Selection rulesIsotopomerSaturated moleculesDihedral anglesKarplus equation
15 related topics

Decoupling

Radio frequencyDecoupledCarbon-13 NMR
3 related topics

J-coupling Hamiltonian

HamiltonianSinglet
2 related topics

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Vector model and manifestations for chemical structure assignments

J-coupling Hamiltonian

Decoupling

History

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J-coupling

Nodes43
Edges42
Triples15
Avg. degree1.95
Density0.046512
Components1

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J-coupling

Top relations

related to Sign of J-coupling · 8
J-coupling → C2H5, CH2-Tl, CH3-Tl, For, However, If, NMR, The
related to Vector model and manifestations for chemical structure assignments · 5
J-coupling → Four, HF, In HF, NMR, The
is a · 1
J-coupling → frequency difference that is not affected by the strength of the magnetic field

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Important terminology

coupling nuclear two nmr magnetic spins interaction nuclei spin field molecules sign chemical constant spectroscopy magnitude also resonance lines bonds

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
J-couplingis afrequency difference that is not affected by the strength of the magnetic field0.90text
hydrogen fluorideinstance ofVector model and manifestations for chemical structure assignmentsThe origin of J-coupling can be visualized by a vector model for a simple molecule0.80text
J-couplingrelated to Sign of J-couplingThe0.60section
J-couplingrelated to Sign of J-couplingIf0.60section
J-couplingrelated to Sign of J-couplingFor0.60section
J-couplingrelated to Sign of J-couplingNMR0.60section
J-couplingrelated to Sign of J-couplingHowever0.60section
J-couplingrelated to Sign of J-couplingC2H50.60section
J-couplingrelated to Sign of J-couplingCH3-Tl0.60section
J-couplingrelated to Sign of J-couplingCH2-Tl0.60section
J-couplingrelated to Vector model and manifestations for chemical structure assignmentsThe0.60section
J-couplingrelated to Vector model and manifestations for chemical structure assignmentsHF0.60section

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