A novel 1D linear zinc(II) coordination polymer based 2, 2′-bipyridine-4, 4′-dicarboxylic acid: Synthesis, crystal structure and photoluminescence property

A novel 1D linear Zn(II) coordination polymer {[Zn(BPDC)(H2O)3] · 3H2O}n (BPDC2 −: 2,2′-bipyridine-4,4′-dicarboxylate) was obtained by hydrothermal methods. In this complex, an unusual coordination mode, which BPDC2 − ligand adopts two N atoms and only one O atom to bridge Zn(II) ions into a rigid liner chain, is observed. The 1D chain further assembles into a 3D supramolecular architecture through hydrogen bonds and π–π interactions among chains. In addition, the complex exhibits a strong fluorescence at 381 nm in the solid state, indicating that it may be a candidate for near ultraviolet luminescent material.