摘要
A 1-D paddle-wheel copper （Ⅱ） coordination polymer constructed by 2-nitrobenzene-1,4-di（oxyacetic） acid has been synthesized by hydrothermal reaction, and its crystal structure was determined by X-ray diffraction. The crystal is of triclinic, space group P1^- with a = 7.7257（12）, b = 8.3648（13）, c = 11.5516（18）A, α = 76.654（2）, β = 82.088（2）, γ = 63.636（2）°, C20H22Cu2N2O20, Mr = 737.48, V = 650.27（18）A^3, Dc = 1.883 g/cm^3, F（000） = 374,/1 = 1.737 cm^-1 and Z = 1. The final refinement gave R = 0.0345 and ωR = 0.0995 for 1996 observed reflections with I 〉 2σ（I）. The coordination polymer demonstrates a 1-D microporous structure, and the channel is formed by two NBDOA^2- and two Cu^2＋ ions. The ligand NBDOAH2 displays a good flexible characteristic. The 1-D chains are connected to a 3-D supramolecular network by hydrogen bonds.
A 1-D paddle-wheel copper （Ⅱ） coordination polymer constructed by 2-nitrobenzene-1,4-di（oxyacetic） acid has been synthesized by hydrothermal reaction, and its crystal structure was determined by X-ray diffraction. The crystal is of triclinic, space group P1^- with a = 7.7257（12）, b = 8.3648（13）, c = 11.5516（18）A, α = 76.654（2）, β = 82.088（2）, γ = 63.636（2）°, C20H22Cu2N2O20, Mr = 737.48, V = 650.27（18）A^3, Dc = 1.883 g/cm^3, F（000） = 374,/1 = 1.737 cm^-1 and Z = 1. The final refinement gave R = 0.0345 and ωR = 0.0995 for 1996 observed reflections with I 〉 2σ（I）. The coordination polymer demonstrates a 1-D microporous structure, and the channel is formed by two NBDOA^2- and two Cu^2＋ ions. The ligand NBDOAH2 displays a good flexible characteristic. The 1-D chains are connected to a 3-D supramolecular network by hydrogen bonds.
基金
the National Natural Science Foundation of China (No.20471008)
the Excellent Young Scholars Research Fund of Beijing Institute of Technology (No.000Y02-8)
