Syntheses, structures and luminescence properties of lanthanide coordination polymers with helical character |
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| Authors: | Rui-Sha Zhou Xiao-Bing Cui Jiang-Feng Song Xiao-Yu Xu Ji-Qing Xu Tie-Gang Wang |
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| Institution: | aCollege of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, Jilin 130021, P.R. China |
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| Abstract: | A series of lanthanide coordination polymers, (Him)nLn(ip)2(H2O)]n Ln=La(1), Pr(2), Nd(3) and Dy(4), H2ip=isophthalic acid, im=imidazole] and Y2(ip)3(H2O)2]n·nH2O (5), have been synthesized and characterized by elemental analyses, infrared (IR), ultraviolet-visible-near infrared (UV-Vis-NIR) and single-crystal X-ray diffraction analyses. The isostructural compounds 1–4 possess 3-D structures with three different kinds of channels. Compound 5 features a 2-D network making of two different kinds of quadruple-helical chains. Compounds 2 and 3 present the characteristic emissions of Pr(III) and Nd(III) ions in NIR region, respectively. Compound 4 shows sensitized luminescence of Dy(III) ions in visible region. |
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| Keywords: | Hydrothermal syntheses Lanthanides Isophthalate Topology Luminescence |
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