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. Author manuscript; available in PMC: 2016 Aug 6.
Published in final edited form as: J Phys Chem B. 2015 Jun 3;119(25):7985–7993. doi: 10.1021/acs.jpcb.5b03485

Figure 1.

Figure 1

Chemical structures are shown of (A) the “external” BN indole, (B) the “fused” BN indole, and (C) the natural indole. The inplane angle δ is defined relative to the short molecular axis, as shown. The external BN indole (A) is assigned to the C2v symmetry group.