Macrocyclic isomer-dependent supramolecular silver(<scp>i</scp>) complexes via endo/exo-coordination modes: a tetranuclear bis(macrocycle) complex vs. a 2D coordination polymer

A comparative investigation of the coordination behaviour of the regio-isomers (o-L and p-L) of the tribenzo-O2S2-macrocycle (L) is reported. On silver(I) complexation, the macrocycle incorporating an o-xylyl group (o-L) yields a discrete endo/exocyclic tetranuclear bis(macrocycle) complex. On the other hand, the corresponding p-xylyl analogue (p-L) gives a 2D square-grid coordination network via exocyclic coordination.