Assembled structures host-guest complexes between

Host-guest complexes also form various assembled structures in the solid state. Host-guest complexes between per-ethylated pillar[5]arene 6.3 and 1,4-dichlorobutane were arranged perpendicular to each other (Figure 6.13a, herringbone structure). ... 

Supramolecular systems can be classified into two broad categories (1) systems formed from a relatively small number of components where interactions are rather specific, such as host-guest complexes, intercalation into DNA, or complexation to protein binding sites (2) Systems which correspond to the self-assembly of a large number of components with similar structure. These systems, such as micelles and vesicles, can be frequently viewed as forming separate pseudo-phases from the bulk solvent. This categorization is simplistic and a continuum between the two extremes exists, such that a variety of... 

The field of supramolecular chemistry is concerned with a large number of systems ranging from simple host-guest complexes to more complicated solution assemblies, as well as two-dimensional (organized monolayers) and three-dimensional assemblies (crystalline solids). Nonco-valent interactions play an important role in the kinetic assembly and thermodynamic stabilization of all these systems and constitute their most distinctive feature. Electron-transfer reactions can obviously be affected by supramolecular structures, but the reverse is also true. It is possible to alter the structure and the thermodynamic stability of supramolecular assemblies using electrochemical (redox) conversions. In other words, electron-transfer reactions can be utilized to exert some degree of control on supramolecular aggregates. Provided in this article is an overview of the interplay between supramolecular structure and electron-transfer reactions. 

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