(A) [(H2PO4)2]2− ⊂ [H646]6+ complex shown using a space-filling model.
(B) [(HPO4) · (H2PO4)]3− ⊂ [H647]6+ complex shown using a space-filling model.
(C) [(ClO4)2]2− ⊂ [H647]6+ complex shown using a space-filling model.
(D) [F4(H2O)4]4− ⊂ [H649]6+ complex with the anions and water molecules shown in space-filling form.
(E) [(ClO4)2]2− ⊂ [H450]4+ complex shown using a space-filling model.
(F) [Cl2]2− ⊂ [H651]6+ complex with anions shown using a space-filling model.
(G) [Br2]2− ⊂ [H651]6+ complex shown using a space filling model.
Color code: C = gray, N = blue, O = red, F = chartreuse yellow, Cl = green, Br = brown and P = yellow. The counter anions and solvent molecules outside the cavities are omitted for clarity.