摘要
The title coordination polymer [Eu（PCPA）3（H2O）]n （PCPA = p-chlorophenoxyacetate） has been synthesized under hydrothermal condition, determined by single-crystal X-ray diffraction and characterized by FT-IR, UV-VIS and fluorescent spectra. The crystal belongs to triclinic system, space group PI^- with a = 7.8036（1）, b = 12.7458（4）, c = 14.0208（3） A, α = 81.610（8）, β = 79.406（8）, γ = 77.567（7）°, V = 1330.40（5） A^3, C24H20Cl3EuO10, Mr = 726.71, Z = 2, F（000） = 716, Dc= 1.814 g/cm^3, λ（MoKa） = 0.71073 A, μ（MoKα） = 2.713 mm^-1, the final R = 0.0284 and wR = 0.0678 for 5529 observed reflections with I 〉 2σ（I）. The europium ions are located in a nine-coordinate environment. PCPA ions with two different coordination modes connect the metal ions to form 1D zigzag chains which are arranged to generate 2D supramolecular layers by intermolecular hydrogen bonds. The luminescence properties of the rare-earth ions are studied in this paper.
The title coordination polymer [Eu（PCPA）3（H2O）]n （PCPA = p-chlorophenoxyacetate） has been synthesized under hydrothermal condition, determined by single-crystal X-ray diffraction and characterized by FT-IR, UV-VIS and fluorescent spectra. The crystal belongs to triclinic system, space group PI^- with a = 7.8036（1）, b = 12.7458（4）, c = 14.0208（3） A, α = 81.610（8）, β = 79.406（8）, γ = 77.567（7）°, V = 1330.40（5） A^3, C24H20Cl3EuO10, Mr = 726.71, Z = 2, F（000） = 716, Dc= 1.814 g/cm^3, λ（MoKa） = 0.71073 A, μ（MoKα） = 2.713 mm^-1, the final R = 0.0284 and wR = 0.0678 for 5529 observed reflections with I 〉 2σ（I）. The europium ions are located in a nine-coordinate environment. PCPA ions with two different coordination modes connect the metal ions to form 1D zigzag chains which are arranged to generate 2D supramolecular layers by intermolecular hydrogen bonds. The luminescence properties of the rare-earth ions are studied in this paper.
基金
This work was supported by the Foundation of Education Committee of Fujian Province (No. JB04049)
