NMR couplings 8 Coupling constants 6 Hyperconjugative interactions 6 article 6 Fermi contact 4 Magnetic Resonance Spectroscopy 4 NMR coupling 4 NMR coupling constants 4 Nuclear magnetic resonance 4 Quantum Theory 4 Reference Standards 4 Second orders 4 Spin-spin coupling constants 4 Sulfur compounds 4 chemistry 4 nuclear magnetic resonance spectroscopy 4 quantum theory 4 standard 4 1JCH and 2JCH coupling constants 2 3 dioxides 2 ¹J_CH and ²J_CH coupling constants 2 Ab initio 2 Aldehydes 2 Anti bondings 2 Antibonding orbitals 2 Axial orientations 2 Basis sets 2 Bicyclo[1.1.1]pentanes 2 Bond contributions 2 Bond polarizabilities 2