Doubly intertwined catenane

The coordination of phenanthroline fragments with a metal atom as depicted in Figure 1.2. In this way knots like 6 [If] and 394 [10a], a doubly-intertwined catenane 33 [3] and a mixture of [2]-, [3]-, [4]-, [5]- and [6]-catenanes 32 [14] have been synthesized by the Sauvage and Dietrich-Buchecker group. 

In the introduction we mentioned extravagant interlocked structures of higher complexity such as doubly intertwined catenane and molecular composite knots of Sauvage et al. and multicatenanes made up of 4 to 7 interlocked rings obtained by Stoddart et al. In this section, we will discuss assemblies made up of amide-based catenanes, rotaxanes and knots. Here we use the term assembly to describe covalent or... 

Scheme 10.2 Structural representations of the trefoil knot (a) and doubly intertwined [2]catenane (b) by Sauvage and coworkers. 

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