Figure 2
A partial view (perchlorate groups and solvent water molecules have been omitted for clarity) of the packing of (I), showing π–π stacking interactions and hydrogen bonds involving the dangling pyridine ring containing atom N6. The non-H atoms are shown with displacement ellipsoids drawn at the 80% probability level. H atoms have been omitted for clarity, except those of water molecules, which are shown as small spheres of arbitrary radii. [Symmetry code: (i) −x + 2, y + , −z + .] |