Abstract
By using solvothermal method, a one-dimensional chain compound [KEu2(FDCA)3(H2O)9·0.5(FDCA)] (1) was synthesized. Single-crystal X-ray diffraction data reveal that 1 crystallizes in monoclinic system, space group P21/n with a = 12.1996(1), b = 18.6454(2), c = 17.7123(2) Å, ß= 98.8460(10)°, Dc = 1.753 g/cm3, Z = 2, V = 3981.03(7) Å3, R = 0.0544 and wR = 0.1511 for 7886 observed reflections with I > 2σ(I). In 1, three FDCA2- ligands construct a “23-crown-9-like” structure as the second building units (SBUs) to further form an infinite 1D chain. Meanwhile, the fluorescent result reveals that compound 1 can selectively and sensitively sense Fe3+ by the fluorescence quenching.
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