Figure 2
Two views of the Hirshfeld surface of R13 showing: (a) the surface rendered as dnorm, highlighting close contacts of the form C19i—H19i⋯N1 [symmetry code: (i) − x, + y, − z] as small red spots; (b) the surface rendered by ‘shape index’, which provides evidence of π–π stacking as opposing blue and red roughly triangular regions at each of the oxazole and benzene rings. |