Ligand-regulated assemblies of three 1D to 3D Cu(II) coordination polymers: Structural diversities and magnetic properties

Abstract Three structurally diverse Cu(II) coordination polymers (CPs) from one-dimension (1D) to three-dimension (3D) upon nicotinate N-oxide (NNO) and isonicotinate N-oxide (INO) ligands have been synthesized solvothermally. CP 1 [Cu3(NNO)4(OH)2(H2O)2]n based on NNO ligand displays a 1D wavy double-chain. CP 2 [Cu(INO)(OH)]n based on INO ligand possesses a 2D wavy double-sheet. CP 3 [Cu(INO)(CH3O)]n based on INO ligand exhibits a 3D framework with 1D wavy channels. Structural comparisons indicate that the position of functional group of ligand, the coordination modes of ligand, the solvent system determine these diversified CPs. And Moreover, the structural diversity of CPs 1–3 further result in their different magnetic behaviors.