Figure 3
The arrangement of the 2′,3′-cAMP− anions in (I) within the ribbon formed by adjacent anions related by 21 and direct a-axis translation, linked by O—H⋯O, N—H⋯N (dashed lines) and C—H⋯O (dotted lines) interactions. H atoms not involved in these contacts are not shown. The symmetry codes are as given in Table 2. |