Three novel fluorescent Zn(II) frameworks, namely [Zn(DPA)(NDA)]·2DMF (1), [Zn(DPA)(OBA)]·2DMF·4HO (2) and [Zn(DPA)(HNTB)]·HO (3) (DPA = 2,5-di(pyridin-4-yl)aniline, HNDA = 1,4-naphthalenedicarboxylic acid, HOBA = 4,4'-oxydibenzoic acid, HNTB = 4,4',4''-nitrilotribenzoic acid, DMF = ,-dimethylformamide), were successfully fabricated and structurally characterized. Due to the variety of organic linkers, 1-3 exhibit varied topologies: 1 is a 4-c three-dimensional (3D) framework with {6·8} topology, 2 is a 6-c 3D net with point symbol of {4·6·8}, and 3 is a 4-c two-dimensional network that further stacks into a 3D structure by hydrogen bonding interactions with {4·6} topology. Experiments related to fluorescence show that 1-3 can be utilized to quickly identify specific anions of CrO/CrO, and organic molecules such as 2,4,6-trinitrophenol and benzaldehyde.
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