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Metal-organic frameworks (MOFs) are of considerable interest due to their potential applications in the areas of ionexchange, sorption, catalysis and nonlinear optics. Their diversified structural features greatly rely on the selection of the metal centers, organic building blocks, and the reaction pathways. The selection of organic building blocks exhibiting various connection fashions is the most effective strategy to assemble MOFs. Complexes containing heterocyclic πconjugated 1,2,4-triazole moiety are one of the most extensively explored systems, whose researches lead to some molecular functional materials, such as magnetic materials, photochemically driven molecular devices, information storage, molecular recognition media, and supramolecular devices. 1,2,4-Triazole ring being a 6-electron π-excessive system, its emission region locates near blue light, implying that 1,2,4-triazole derivatives can act as a carrier to investigate the possibility in the design strategies for the heterocycle-based organic blue emission molecular materials. 3-Amino-1H-1,2,4-triazole (Httr) is chosen as the organic building blocks in the presented work, which is a twoconnecting neutral ligand or three-connecting (deprotonated) anionic ligand in the construction of MOFs. Its coordination chemistry is helpful in the studies of the “simple highsymmetry” structures and new topological networks. Though Httr can be purchased from commercial sources or synthesized in laboratories, the examples of the complexes containing Httr is not rich as expected. Therefore, our interest is in the investigation of fabricating metal-organic frameworks with desired optical properties. Herein, a 2D layered compound, [Zn2(ttr)2(OAc)2]n (1), was yielded from the hydrothermal reaction of Httr with Zn(OAc)2·2H2O, whose structure and fluorescence were characterized.

Hydrothermal Synthesis, Structure and Fluorescence of a New Triazole-bridging Zinc(II) 2D Layered Framework