Keen competition between electrostatic and argentophilic interactions in the formation and behavior of molecular rings

The macrocyclic structures and behavior on the reaction of AgX (X = NO3 and CF3SO3) with bis(nicotinoyl)-4,4′-(9-fluorenylidene)diphenolates (L) have been carried out. Discrete oblong rings and linked rings were constructed via the keen competition between the inter-ring argentophilic (Ag···Ag) interaction and the electrostatic interaction between Ag(I) and its anion, and the interconversion of the two species was attempted by means of anion exchange.

Slow diffusion of AgX (X = NO3 and CF3SO3) with bis(nicotinoyl)-4,4′-(9-fluorenylidene)diphenolate (L) yields discrete cyclodimeric rings and linked cyclodimeric rings, respectively, via the competition between the inter-ring argentophilic (Ag···Ag) interaction and the electrostatic interaction between Ag(I) and its anion.Figure optionsDownload as PowerPoint slide