【摘 要】
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T A new 2D Zn(Ⅱ)coordination polymer[Zn(HIDC)(bix)0.5]n(1)was obtained by the hydrothermal reaction of ZnCI2,imidazole-4,5-dicarboxylic acid(H3IDC)and 1,4-bis(
【机 构】
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Department of Chemistry
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T A new 2D Zn(Ⅱ)coordination polymer[Zn(HIDC)(bix)0.5]n(1)was obtained by the hydrothermal reaction of ZnCI2,imidazole-4,5-dicarboxylic acid(H3IDC)and 1,4-bis(imidazol-1-ylmethyl)-benzene(bix)with a 2:2:1 mole ratio.X-ray diffraction crystal structural analysis reveals it crystallizes in monoclinic,space group P21/n with α=12.125(3),b=10.541(3),c=684,μ(MoKα)=1.730 mm-1,the final R=0.0439 and wR=0.0888 for 2101 observed reflections with Ⅰ＞2σ(Ⅰ).In 1,each zinc(Ⅱ)ion is five-coordinated with a slightly distorted trigonal bipyramidal coordination geometry,and each μ2-HIDC2-acts as a bridge to bond two neighboring Zn(Ⅱ)ions,leading to a 1D zigzag chain architecture.The adjacent zigzag chains are further linked by μ2-bix to form an infinite 2D network structure.The fluorescence spectrum of 1 exhibits intense emission at 466 nm when excited at 397 nm in solid state at room temperature.
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