摘要
A Zn-based coordination polymer [Zn（2-cb）2（4,4′-bpy）0.5]n （1, 2-cb = 2-chloro- benzoate, 4,4＇-bpy = 4,4′-bipyridine） was prepared by hydrothermal synthesis using 2-chloro- benzoic acid and 4,4′-bipyridyl as ligands. The compound was characterized by elemental analysis, IR, TGA, and X-ray single-crystal diffraction. The crystal belongs to the monoclinic system, space group PI with a = 8.0471（5）, b = 9.7338（6）, c = 11.7830（7） A, a = 96.2230（10）, β = 92.542（2）, γ = 103.7560（10）°, V = 888.84（9） A3, Z = 2, Mr = 454.57, Dc = 1.698 g/cm3,μ（MoKa） = 1.708 mm.1, F（000） = 458, the final R = 0.0359 and wR = 0.0936 for 3167 observed reflections with I 〉 2σ（I）. The crystal analysis indicates that 1 exhibits a 1-D chain structure constructed by 4,4′-bpy and a dicaryon secondary-building-unit of [Zn2（2-cb）4]. Luminescence analysis revealed that compound 1 emits blue fluorescence with a fluorescence lifetime of 55.03 ns.
A Zn-based coordination polymer [Zn（2-cb）2（4,4′-bpy）0.5]n （1, 2-cb = 2-chloro- benzoate, 4,4＇-bpy = 4,4′-bipyridine） was prepared by hydrothermal synthesis using 2-chloro- benzoic acid and 4,4′-bipyridyl as ligands. The compound was characterized by elemental analysis, IR, TGA, and X-ray single-crystal diffraction. The crystal belongs to the monoclinic system, space group PI with a = 8.0471（5）, b = 9.7338（6）, c = 11.7830（7） A, a = 96.2230（10）, β = 92.542（2）, γ = 103.7560（10）°, V = 888.84（9） A3, Z = 2, Mr = 454.57, Dc = 1.698 g/cm3,μ（MoKa） = 1.708 mm.1, F（000） = 458, the final R = 0.0359 and wR = 0.0936 for 3167 observed reflections with I 〉 2σ（I）. The crystal analysis indicates that 1 exhibits a 1-D chain structure constructed by 4,4′-bpy and a dicaryon secondary-building-unit of [Zn2（2-cb）4]. Luminescence analysis revealed that compound 1 emits blue fluorescence with a fluorescence lifetime of 55.03 ns.
基金
supported by Research Fund of Key Laboratory of Fuel Cell Technology of Guangdong Province
Foundation for Distinguished Young Talents in Higher Education of Guangdong Province (2012LYM_0134)
Science and Technology Planning Project of Zhaoqing City (2012G013)
Zhaoqing University with doctoral start-up funds
