Hydrothermal Synthesis and Characterization of a Novel 1D Zn(II)-Triazole Framework Containing Infinite Zn-O-Zn Connectivity

Abstract

Using the benzene-based bis-triazole ligand 1,4-di-(1,2,4-triazole-4-yl)benzene(L) and corresponding Zinc(II) salt, under hydrothermal conditions, a novel luminescent 1D Zn(II) coordination polymer, {[Zn2(μ2-O)(μ2-L)]SiF6·3H2O}n (1), has been isolated and characterized by single-crystal X-ray diffraction analysis. The crystal crystallizes in the orthorhombic Cmcm space group, a = 22.867(15) Å, b = 23.751(15) Å, c = 6.778(4) Å, β = 90°, Z = 1. These L ligands adopt the bidentate bridging coordination modes to link neighboring Zn(II) ions forming 1D chain structure. Interestingly, infinite Zn-O-Zn connectivity also can be observed. The result also represents a good example of the construction of these highly dimensional luminescent inorganic-organic hybrid frameworks containing infinite M-O-M linkage using triazole derivative ligands.1