Proton-Proton Coupling -
  ²J_HH Alkenes (sp²)
  ²J_HH Saturated
  ²J_HH Saturated - 3-4 ring
  ²J_HH Saturated - 5 ring
  ²J_HH Saturated - 6 ring
  ²J_HH Saturated - 7-8 ring
  ³J_HH Acetylene
  ³J_HH Aldehyde
  ³J_HH Alkene
  ³J_HH Allylic
  ³J_HH Aromatic
  ³J_HH Dienylic
  ³J_HH Saturated (sp³)
  ⁴J, ⁵J Aromatic Long Range Coupling
  ⁴J, ⁵J: Dienylic Coupling
  ⁴J,⁵J, ⁶J: "W" Coupling
  ⁴J: Allylic Coupling
  ⁴J_HH - ⁹J_HH: Long Range Acetylenic Couplings
  ⁴J_HH, ⁵J_HH, ⁶J_HH : Long Range Allenic Couplings
  ⁴J_HH: Long Range Benzylic Coupling
  ⁵J_HH: Long Range Homoallylic Couplings