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. Author manuscript; available in PMC: 2010 Mar 1.
Published in final edited form as: J Nat Prod. 2009 Mar;72(3):353–359. doi: 10.1021/np800549n

Figure 4.

Figure 4

Staggered conformers contributing to exciton coupling CD in threo (ia – ic) and erythro (iia – iic) isomers of acyclic dibenzoyl 2-amino-3-alkanols. Blue and red shaded spheres represent N-Bz and O-Bz chromophores groups, respectively (λmax ~228 nm. The net signs of the observed split Cotton effects are consistent with predominant contributions from conformers ia and iia, respectively. Conformers ib and iic have anti-parallel transition dipole moments and give zero contributions to the ECCD’s. See also Figure 1.