Silver coordination polymers with isonicotinic acid derived short polyethylene glycol – Synthesis, structures, anion effect and solution behavior

Silver coordination compounds and one-dimensional polymers have been studied, using a linear, flexible N-donor ligand. The solid state structures are well known and show panoply of different structures including a large number of polymorphism, pseudo-polymorphism and isomers. We have studied these structures under the influence of anions, solvents and crystallization conditions, studying also some solution effects. We here present an overview with highlights of some case studies of the synthesis, structures, anion and solvent effects as well as solution behavior during formation of silver coordination polymers. Finally, we will give an outlook on the potential applications of these materials.

Graphical abstractSilver ions form with neutral “linear” ligands oligomeric complexes in solution, from which a number of 1D-chain solid state structures are obtained which afford polymorphism and pseudo-polymorphism, as well as isomerism.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► We give an overview on silver coordination compounds obtained with short ligands. ► The solid state structures are discussed with respect to solvent and counter ions. ► Results from solution studies prove the formation of oligomeric species. ► Crystal engineering aspects are discussed.