Excellent review: 99ACR614

• Proton-proton coupling constants in the sugar ring ( 00JMR260-146, 01JB19-19)
• Coupling constants in bases: AMP | GMP | UMP | CMP
• Sugar Puckers
• J through hydrogen bonds
• Dipolar Couplings
• Scalar ⁿJ_CH coupling constants from a 3D alpha/beta HC(C)H-TOCSY experiment ( 01JB117-21) or 2D quantitative HMBC experiment to determine glycosidic torsion angles ( 02JB1-23).