Structure of [2-(aminomethyl)pyridine]silver(I) nitrate and EPR studies of its oxidation product

Reaction of AgNO3 with excess 2-(aminomethyl)pyridine (amp) in water led to the crystallization of Ag(amp)NO3 (1). Nearly linear coordination of silver (I) by pyyridine-N and amino-N from two different amp molecules results in a polymeric chain structure of 1. The packing is stabilized by ring-ring stacking interactions between two inversion-related polymer chains. Oxidation of 1 with (NH4)2S2O8 resulted in an orange solution from which a magnetically dilute AgII complex was crystallized by the addition of NH4PF6. It gave a well-resolved EPR spectrum and is formulated as silver(II) picolinate co-crystallized with NH4PF6.