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Experimental RN lineshapes (full lines) of (a) cationic H-Nδ1 and (b) neutral H-Cε1 spin pairs and corresponding lineshapes (broken lines) simulated with indicated deviations from the best-fit parameters. In the top row of (a), (θ, ϕ) are changed to (20°, 45°) while all other parameters are kept equal to the best-fit values. All other simulations are fit results with the DCC or (θ, ϕ) kept fixed at the indicated values.
