Helical and zigzag coordination polymeric chains derived from di-3-pyridyl ketone and silver(I) salts

A series of silver(I) complexes [AgL(X)]∞ (X=BF4, ClO4, NO3, CF3SO3, PF6; L=di-3-pyridyl ketone) have been characterized by X-ray crystallography. Argentophilic interaction, π-π stacking, Ag⋯X interaction, C-H⋯X (X=F, O) and C-H⋯O=C hydrogen bonding contribute to different extents in the construction of helical or zigzag infinite chains.