Fig. (4) Variation of interaction energy with distance relative to that found experimentally at 100 K for the π–π stacking interaction along the C(2)∙··C(11) axis (red) and the interactions along the F(4)∙··H(13) (orange), F(4)∙··F(4) (violet), C(14)∙··F(14) (yellow), C(1)∙··H(13) (blue) and C(2)∙··C(4) (green) axes.