Supramolecular anion receptors

Despite the prominence of anion recognition chemistry in biological systems, the design of supramolecular anion receptors was slow to develop with respect to the analogous chemistry of cations, and this discrepancy may readily be traced to a number of inherent difficulties in anion binding ... 

An obvious possibility in the design of supramolecular anion receptors is the incorporation of a metal center in with which the anion may form a coordinate bond. Some examples of this type (e.g. 36) have already been mentioned. This section discusses a number of other metal complexes capable of multipoint molecular recognition based upon binding anionic ligands to a metal center along with the incorporation of other stabilizing interactions. 

SUPRAMOLECULAR ANION RECEPTORS K. Travis Holman, jerry L. Atwood, and Jonathan W. Steed... 

Abstract Calix[n]arenes represent a well-known family of macrocyclic molecules with a broad range of potential applications in many branches of supramolecular chemistry. Because of their preorganisation, calix[n] arenes are frequently used as building blocks and molecular scaffolds in the construction of more elaborate systems, such as artificial enzyme biomimetics and receptors. This review is focused on the recent development of calixarene-based anion receptors. 

Keywords Guanidinium Molecular recognition Anion receptor Sensing Supramolecular... 

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