Syntheses, structures and luminescent properties of a dimer and an one-dimensional chain coordination polymer with the flexible bis(triazole) and hydroxybenzoate ligands

Two novel complexes [Zn(phba)2(btp)]2 (1) and [Cd(phba)2(btp)(H2O)]n (2) have been synthesized by using 1,3-bis(1,2,4-triazol-1-yl)propane (btp) and 4-hydroxybenzoate (phba). 1 contains the neutral dimer Zn2(btp)2 metallacycle, while 2 forms the one-dimensional zigzag chain structure. 1 and 2 exhibit blue luminescent emissions at 402 and 394 nm, respectively, excited at 340 nm in the solid state at room temperature.