Fig. 4. Front and side views of the single crystal X-ray structure of receptor 2 (ion-free form). One of the two methoxyphenyl groups was disordered resulting in a mixture of the cone and partial cone conformations being present in a 83 : 17 ratio (cone : partial cone). The atoms of the disordered methoxyphenyl group are shown as spheres (light green: carbon atom; pink: oxygen atom). Most hydrogen atoms and solvent molecules have been removed for clarity.
