Silver(I) complexes of 1,3-diallylbenzimidazolin-2-one: A versatile ligand for discrete binuclear assemblies and a polymeric ladder and helix

1,3-Diallylbenzimidazolin-2-one (2) reacts with silver tetrafluoroborate and hexafluorophosphate salts to furnish discrete binuclear complexes, whereas reaction with silver perchlorate and triflate salts provided 1D coordination polymers. Within each of the structures the ligand adopted a different coordination mode.