Complex I was discrete mononuclear species, in which the zinc(II) ion is six-coordinated with a distorted octahedral geometry. <...> Complex II showed a dinuclear structure by terephthalic acid bridging. <...> Three-dimensional supramolecular architectures are further assembled in I and II via hydrogen-bonding contacts. <...> The solid state luminescent properties of compounds I and II have been studied. <...> Kyewords: crystal structure, zinc(II) complex, luminescent properties DOI: 10.7868/S0132344X17040107 INTRODUCTION There has recently been a renewed interest in complexes for their structural diversity and their potentially important applications in wide fields such as catalysis, molecule-based magnets, optical materials, gas sorption, and sensing materials [1–4]. <...> The exploitation of various kinds of organic ligands is of vital importance to increase the structural diversity of complexes, which provides new insights into the relationships between the structure and the corresponding function. <...> Among organic ligands, triazole-containing ligands have proven to be good candidates for the construction of new complexes due to their diverse coordination modes [5–8]. <...> The carboxylate ligands have also received much attention in the designed synthesis of complexes due to their many coordination modes, such as monodentate, chelating and/or bridging, which allows a wide variety of structures [9–11]. <...> Very recently, we have initiated to utilize a multifunctional organic tecton, namely 3-(pyridin-4-yl)-5(pyrazin-2-yl)-1H-1,2,4-triazole (HPpt), to create a series of unusual metal-organic frameworks [12, 13]. <...> The ligand possess six potential coordinating sites and multiform possible conformations, which may be regarded as versatile building blocks for the construction of new coordination polymers. <...> In the present paper, we report the syntheses and crystal structures of two new zinc(II) complexes, namely [Zn(Ppt)2(H2O)] (I) and [Zn2(Ppt)2(Tp)(H2O)4] ⋅ ⋅2H2O (II). <...> The thermal stability and photoluminescence of the complexes in the solid state were investigated. <...> Elemental analyses for C, H and N were performed on a Vario EL III elemental analyzer. <...> Infrared spectra were recorded as KBr pellet using an Avatar(tm) 360 E. S. P. IR spectrophotometer over a range <...>