Figure 12
From: Naphthyridine derived colorimetric and fluorescent turn off sensors for Ni2+ in aqueous media

(a) AIM molecular graph for L4-NiCl2. Bond Critical Points (orange spheres) and Bond Paths (solid dashed black lines), (b) AIM molecular graph for 2L4-NiCl2 Bond Critical Points (orange spheres) and Bond Paths (solid dashed black lines).