A hybrid macrocycle containing benzene and pyridine subunits is a better anion receptor than both its homoaromatic congeners
Graphical abstract
The hybrid tetraamide receptor 3 benefits from both suitable preorganization provided by the 2,5-diamidopyridine unit and good anion binding properties of the 1,3-diamidobenzene moiety and therefore is a better anion receptor than its homoaromatic counterparts 1 and 2.
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