Figure 4.

(a) Polymeric chain structure in 2; (b) Interconnection of the parallel polymeric chains; (c) Formation of two-dimensional framework where R₂²(22) acts as building block of the structure; (d) Layered network in (011) plane where the green dotted lines represent N‒H···π interaction, whereas the pink dotted lines are indicating C‒H···π interactions in 2. In the solid-state structures, the amino group from 2-aminopyrazine moiety that have higher occupancy factor is taken into consideration to draw the figures. Disordered counterpart of amino group with small occupancy factor is omitted for clarity.