Figure 1
Perspective views of the molecular structures of unsolvated diols (a) (II) and (b) (III), and inclusion structures (c) (IIa), (d) (IIIa) and (e) (IIIb), showing the atom-numbering schemes. Displacement ellipsoids are drawn at the 50% probability level. Dashed lines represent hydrogen bonds and double-dashed lines represent O—H⋯π contacts. |