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. 2025 Jun 27;81(Pt 7):650–656. doi: 10.1107/S2056989025005547

Table 2. Calculated inter­action energies (kJ mol−1).

Inter­action energies were calculated employing the CE-B3LYP/6–31G(d,p) functional/basis set combination. The scale factors used to determine Etot are kele = 1.057, kpol = 0.740, kdis = 0.871, and krep = 0.618 (Mackenzie et al., 2017). R is the distance between the centroids of the inter­acting mol­ecules.

Path Symmetry code Typea R (Å) E ele E pol E dis E rep E tot
AB x + Inline graphic, y, −z + Inline graphic stacking 5.77 −5.3 −2.1 −66.2 30.8 −45.8
AC x + 1, −y + 1, −z + 1 stacking 12.05 −6.1 −2.4 −25.1 9.3 −24.3
BC x + Inline graphic, −y + 1, z + Inline graphic tetrel 15.89 −10.5 −2.7 −5.0 8.2 −12.4
AD x + 1, y + Inline graphic, z + Inline graphic C—H⋯O, dispersion 8.93 −10.3 −2.0 −25.3 19.5 −22.4
AE x + Inline graphic, y + Inline graphic, z C—H⋯N 8.73 −10.1 −2.7 −11.7 8.2 −17.8
AF x + Inline graphic, y − Inline graphic, z C—H⋯O 8.79 −4.2 −0.5 −20.4 10.8 −15.8
AG x + Inline graphic, −y + Inline graphic, −z + 1 dispersion 9.56 −4.3 −1.6 −16.0 7.4 −15.1

Note: (a) For details of the inter­action modes see Fig. 6. Weak dispersion inter­action AG is not shown in the Figure.