Figure 5
(a) Thymine–thymine base pairing in the parent thymine. (b) Thymine–β-resorcylic acid heterosynthon interactions in (II). (c) The propagation of the R22(8) dimer in the parent β-resorcylic acid, (d) in the hemihydrate and (e) in monohydrate (I). Hydroxy groups aggregate the dimers into a one-dimensional chain in parts (c) and (d). Also in part (d), water molecules interlink the one-dimensional chains. In part (e), water molecules help to achieve the propagation. A and B represent two independent thymine molecules. |