Complexation of Triptycene-Based Cylindrical Macrotricyclic Polyether toward Diquaternary Salts: Ion-Controlled Binding and Release of the Guests

Triptycene-based cylindrical macrotricyclic polyether 1 has
been proved to be an efficient host for the complexation with
diquaternary salts in solution and in the solid state. Moreover,
it was also found that binding and release of the guest
molecules could be easily controlled by the addition and
removal of potassium ions.