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. Author manuscript; available in PMC: 2015 Oct 24.
Published in final edited form as: Chem Sci. 2014 Dec 19;6(2):1537–1547. doi: 10.1039/c4sc02402h

Figure 4.

Figure 4

Molecular structure of (a) 1•HCl side view; (b) 1•HCl top view; (c) Depiction of amino group torquing phenomenon of 1•HCl; (d) Depiction of cyclohexyl gearing effect and key CH···O interaction of 1•HCl; (e) 23•HCl side view; and (f) 23•HCl top view. For (a) and (b) a co-crystallized molecule of H2O has been omitted for clarity. For (e) and (f) the hydroxymethyl group was disordered and only one of the crystal forms is shown for clarity. A molecule of co-crystallized benzene was also removed for 23-HCl. The unmodified structures are included in the supporting information file.