Figure 117.

Number of short contacts involving halogens as a function of the angles: (A) C–X···B (θ1) and (B) C–B···X (θ2). π-BXB and n-BXB indicate biomolecular halogen bonds of the type C–X···π and C–X···Y, respectively. Reprinted with permission from ref (885). Copyright 2015 Springer.