Synthesis and structure of a helical polymer [Ag(R,R-DIOP)(NO3)]n {DIOP = (4R,5R)-trans- 4,5-bis[(diphenylphosphino)methyl]-2,2-dimethyl-1,3-dioxalane}

A polymeric complex of silver(I) with the chiral ligand (R,R)-DIOP {DIOP = (4R,5R)-trans- 4,5-bis[(diphenylphosphino)methyl]-2,2-dimethyl-1,3-dioxalane} has been synthesized; its crystal structure revealed that the complex had a right-handed helical extended structure and consists of a silver atom co-ordinated by two phosphorus atoms of two adjacent (R,R)-DIOP ligands and an oxygen atom of nitrate.