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. Author manuscript; available in PMC: 2011 Jul 7.
Published in final edited form as: Adv Carbohydr Chem Biochem. 2009;62:17–82. doi: 10.1016/S0065-2318(09)00003-1

Fig. 7.

Fig. 7

Two-quadrant plot of Karplus equation 3JHCCN = −3.1 cos2 ϕ + 0.6 cos ϕ − 0.4 derived by fitting of experimental 3JHCCN values to the dihedral angle ϕ, with the supposition of negative values for 3JHCCN.