Abstract
Through the self-assembly of a 3-EtO salamo H2L with nickel acetate tetrahydrate, lanthanide nitrate hexahydrate (Ln = Sm and Tb) and terephthalic acid (H2bdc), two new heterobimetallic [NiIILnIII] 3d-4f polymers, 2∞[Ni(L)Sm(bdc)1.5]·CH3OH (1) and 1∞[Ni(L)Tb(NO3)(DMF)(bdc)] (2) were synthesized, respectively. Coordination polymers 1 and 2 were characterized via elemental analysis, X-ray single-crystal analysis, IR and UV–visible absorption spectroscopy. Coordination polymer 1 is a 2D coordination polymer in which [Ni(L)Sm] units are linked by exodentate (bdc)2− linker. Coordination polymer 2 is a 1D chain coordination polymer in which the [Ni(L)Tb(NO3)] moieties are connected by exodentate (bdc)2− linker, and they further form a 3D supramolecular configuration through intermolecular hydrogen bondings. Fluorescence properties of coordination polymers 1 and 2 have been discussed.
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