Karplus Equation ·
³J vs dihedral angle
un
seel
.com · ³J = A cos²θ + B cosθ + C · H–C–C–H
θ (dihedral)
180°
³J coupling
9.2 Hz
State
—
Front C–H (H
A
)
Back C–H (H
B
)
Karplus curve · ³J(θ)
NMR doublet splitting
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.com · The Karplus Equation