A Survey of Interaction in Some Macrocyclic Compounds

The construction of biomolecular, supramolecular, nano-molecular structures and host-guest interaction occurs by composite of many interactions, i.e., electrostatic, cation-dipole, hydrogen bond, van der Waals, π-_π , cation-π, XH-π, etc. Some of these can be seen in host-guest chemistry, sometimes in almost pure form: the convergence of binding sites and rigid geometry, and isolated environments make it possible. In this review, the author shows several interactions observed in host-guest complexes. The macropolycyclic compounds, composed of aromatic rings and hetero atoms, formed various kinds of inclusion complexes and these contain several interaction, i.e., cation-dipole (-O×××M+, -N×××M+, CF ×××M+), hydrogen bond (-N×××HX, C-F×××HX), Ag-Ag metal bond, cation-π, and coordination bond.