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通过水热法合成了一个新的金属-有机配位聚合物[Zn(pzdc)(bix)0.5(H2O)]n(1)(H2pzdc=吡嗪-2,3-二甲酸,bix=1,4-双(咪唑基1-甲基)-苯)。并对其进行了元素分析、红外光谱、紫外光谱和X-射线单晶衍射测定。该配合物属于三斜晶系,P1空间群。晶体学数据:a=0.737 27(8),b=1.004 45(12),c=1.079 10(13)nm,α=113.771(2),β=102.005(2),γ=93.586(2)°,V=0.705 71(14)nm3,C13H11N4O5Zn,Mr=368.63,Dc=1.735 g.cm-3,μ(Mo Kα)=1.773 mm-1,F(000)=374,Z=2,最终R=0.027 6,wR=0.067 7用于2 460个可观测点。在晶体结构中,锌离子通过吡嗪-2,3-二甲酸和1,4-双(咪唑基1-甲基)-苯)配体桥联成二维层状结构。而且该配合物通过氢键和π-π堆积作用扩展成三维超分子网状结构。此外还研究了它的荧光性质。
A novel metal-organic coordination polymer [Zn (pzdc) (bix) 0.5 (H2O)] n (1) has been synthesized by hydrothermal method with H2pzdc = pyrazine-2,3-dicarboxylic acid and bix = 4-bis (imidazolyl 1-methyl) -benzene). And its elemental analysis, infrared spectroscopy, UV spectroscopy and X-ray single crystal diffraction determination. The complex belongs to the triclinic system, P1 space group. Crystallographic data: a = 0.737 27 (8), b = 1.004 45 (12), c = 1.079 10 (13) nm,? = 113.771 (2),? = 102.005 (2),? = 93.586 , V = 0.705 71 (14) nm3, C13H11N4O5Zn, Mr = 368.63, Dc = 1.735 g.cm-3, μ (Mo Kα) = 1.773 mm -1, F (000) = 374, Z = 0.027 6, wR = 0.067 7 For 2 460 observable points. In the crystal structure, zinc ions are bridged into a two-dimensional layered structure by pyrazine-2,3-dicarboxylic acid and 1,4-bis (imidazolyl 1-methyl) -benzene ligands. Moreover, the complex expands into a three-dimensional supramolecular network by hydrogen bonding and π-π stacking. In addition it also studied its fluorescence properties.