Synthesis, crystal structure, luminescent and magnetic properties of lanthanide coordination polymers based on a zwitterionic polycarboxylate ligand

A series of isostructural lanthanide coordination polymers (Ln-CPs) ([Ln(Cbdcp)center dot 3H(2)O]center dot CI center dot xH(2)O) Ln = Tb (1), Eu (2), Dy (3), Cbdcp = N-(4-carboxybenzyl)-(3,5-dicarboxyl)pyridinium, have been successfully synthesized and fully characterized. Complex 1 utilized as a representative chemosensor has the potential to serve as the first example of a luminescent Ln-CP material based on the zwitterionic type of organic ligand for selective and recyclable sensing of TNP in ethanol solution. Besides, Complex 3 has antiferromagnetic property and exhibits slow magnetic relaxation. (C) 2017 Elsevier B.V. All rights reserved.