Abstract
Environmental issues are the great challenge that human beings are suffering from. Development in coordination polymers (CPs) provides a great platform for tracing hazardous substance by fluorescence detection. In this work, two novel Zn-CPs, namely [Zn(1,1′-bbi)(C2O4)]n (1) and [Zn3(1,1′-bbi)(L)2(H2O)]n (2) (flexible 1,1′-bbi = 1,1′-(1,4-butanediyl)bis(imidazole), and H3L = 5-(2-carboxylphenoxy)isophthalic acid) have been synthesized under solvothermal conditions, and further characterized by IR spectra, elemental analyses, thermogravimetric (TG) analyses, powder X-ray diffraction (PXRD), and single-crystal X-ray diffraction. Complex 1 displays a sql topological framework; complex 2 shows an unprecedented 4-nodal (3,3,5,6)-c topological network with Point Schläfli symbol (4·5·6)2(42·52·62·73·9)2(42·52·64·7·84·9·10)(42·5)2. CPs 1–2 possess good application prospect due to their high thermal, and chemical stability. The selective and sensitive fluorescence sensing of 1–2 have been investigated towards Fe3+ ions and tetracycline in detail.
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