Further Supramolecular Categories

In the following two chapters, we will explore two further major categories of discrete, non-metal-containing, supramolecular assemblies - namely, rotaxanes and the catenanes. 

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This simple, but very bold statement made by C. J. Pedersen in the early 1970s literally ushered in the era of supramolecular chemistry based on further elaborations of these basic small molecule architectural classes. J. M. Lehn developed terms to describe two major categories of supramolecular receptors [12], They are broadly defined as endo- and exo-receptors. The former present interactive sites that converge on a central locus leading to complexations that are cyclic or... 

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