Two new silver(I) coordination polymers with 4,4′-bipyridine and two perfluoro-β-diketonates

Abstract

► Two coordination polymers based on a Ag I /perfluoro-β-diketonate/N-donor ligand. ► Polymers characterized by spectroscopy technical and X-ray crystallography. ► Chains are further interlinked via Ag···Ag, Ag···O contacts to generate 1D ladder structures. ► Weak interactions provide additional assembly forces, leading to 3D supramolecular networks. Two coordination polymers (CPs) based on a Ag I /perfluoro-β-diketonate/N-donor ligand, [Ag(4,4′-bpy)(hfa)] n , ( 1 ) and [Ag(4,4′-bpy)(ttfa)] n ( 2 ), where 4,4′-bpy is 4,4′-bipyridine, Hhfa is hexafluoroacetylacetone, and Httfa is thenoyltrifluoracetylacetone, were prepared and characterized by elemental analysis, IR and 1 H NMR spectroscopy as well as X-ray crystallography and electrochemical properties were studied. The complexes display 1D CPs structurally quite similar to another. The adjacent chains are further interlinked via Ag···Ag, Ag···O contacts to generate 1D ladder (double chains) structures. Abundant weak interactions, such as π···π, C H···F, C H···O and F···F interactions, provide additional assembly forces, leading to 3D supramolecular networks for 1 and 2 .