Pyridine N-oxide: a hyperdentate argentophile

Abstract

Pyridine N-oxide reacts with silver(I) perchlorate monohydrate in three different stoichiometric ratios to produce three very different complexes all of which are 1-D coordination polymers. Reaction with silver(I) triflate also furnishes a crystalline 1-D polymer. In three of the four complexes the pyridine N-oxide acts as a rare μ₃-O,O,O triply bridging ligand, for which we propose the term “hyperdentate”.