Figure 3
(a) The one-dimensional chain of Form II of Compound-A propagating through the N—H⋯N (pyridine) synthon. (b) Packing of molecules along the a and b axes (Form II). (c) Packing of molecules along the a and c axes (Form III). (d) Overlay of the Form I (green), Form II (blue) and Form III (red, high-temperature polymorph) crystal structures (Compound-A). |