In agreement with previous studies, the prominent spike is shifted to larger
electron densities (left) for iodine, reflecting a stronger non bonding interaction (see
Fig. 18.8e, f) as X molecular weight increases (Fig. 18.9).
Fig. 18.8 2D plots for halogen bonded complexes: a CF 3 Cl–DME, b CF 3 Cl–DMS, c CF 3 Br–
DME, d CF 3 Br–TMP, e CF 3 I–NHC, f CF 3 I–TMA. See Sect. 18.7.5.2 for an interpretation of
iodine compounds extra peaks
18 A Complete NCI Perspective: From New Bonds to Reactivity
511
electron densities (left) for iodine, reflecting a stronger non bonding interaction (see
Fig. 18.8e, f) as X molecular weight increases (Fig. 18.9).
Fig. 18.8 2D plots for halogen bonded complexes: a CF 3 Cl–DME, b CF 3 Cl–DMS, c CF 3 Br–
DME, d CF 3 Br–TMP, e CF 3 I–NHC, f CF 3 I–TMA. See Sect. 18.7.5.2 for an interpretation of
iodine compounds extra peaks
18 A Complete NCI Perspective: From New Bonds to Reactivity
511