Figure 3
(a) Laplacian [∇2ρb(r)] distribution of the N—H⋯O hydrogen bonds. The contours are drawn at logarithmic intervals of −∇2ρb e Å−5. Blue and red lines represent positive and negative contours, respectively. (b) Laplacian [∇2ρb(r)] distribution of the N–H⋯S hydrogen bonds. (c) Laplacian [∇2ρb(r)] distribution of the C—H⋯O hydrogen bonds. |