| 含联苯三羧酸及二咪唑基吡啶配体的两个锌配位聚合物的合成、结构及荧光性质 |
| Synthesis, Structure and Luminescent Properties of Two Zinc Coordination Polymers Based on Biphenyl-3,3’,5-tricarboxylic and 2,6-Bis(imidazole-1-yl)pyridine Ligands |
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| 摘要: 以3，3’，5-联苯三羧酸(biphenyl-3，3’，5-tricarboxylic acid， H3bpta)、2，6-二(1-咪唑基)吡啶(2，6-bis(imidazole-1-yl)pyridine，bip)、Zn(NO3)2·6H2O和ZnCl2为原料，在水热条件下合成了配位聚合物{[Zn3(H2O)7(bpta)2]·5H2O}n (1)和{[Zn2Cl(bpta)(bip)2]·2H2O}n (2)。并利用红外、元素分析和X-射线单晶衍射等对其结构进行表征。X-射线单晶衍射分析表明：化合物1属于单斜晶系，C2/c空间群，a=3.317 1(11) nm，b=1.495 7(5) nm，c=0.695 1(2) nm，β=91.50°，Z=4；化合物2属于单斜晶系，P2/c空间群，a=1.960 4(4) nm，b=1.035 7(2) nm，c=1.998 7(4) nm，β=101.97(3)°，Z=4。化合物1通过bpta桥联Zn(Ⅱ)形成1D链，通过配位水与羧基氧之间的氢键作用构筑成3D结构。化合物2中bip桥联Zn(Ⅱ)构成1D螺旋链状结构，进一步通过bpta桥连形成2D网状结构。此外，对化合物1和2进行了热稳定性分析和荧光性质研究。 |
| 关键词: 配位聚合物 晶体结构 3,3’,5-联苯三羧酸 2,6-二(1-咪唑基)吡啶 |
| 基金项目: 国家自然科学基金(No.21071100)和辽宁省博士启动基金(No.20111046)资助项目。 |
| Abstract: Two coordination polymers, {[Zn3(H2O)7(bpta)2]·5H2O}n (1) (H3bpta=biphenyl-3,3',5-tricarboxylic acid) and {[Zn2Cl(bpta)(bip)2]·2H2O}n (2) [bip=2,6-bis(imidazole-1-yl)pyridine], have been synthesized under hydrothermal conditions and characterized by elemental analysis, FT-IR and single crystal X-ray diffraction. Complex 1 crystallizes in monoclinic system, space group C2/c with a=3.317 1(11) nm, b=1.495 7(5) nm, c=0.695 1(2) nm, β=91.50°, Z=4. Complex 2 crystallizes in monoclinic, space group P2/c with a=1.960 4(4) nm, b=1.035 7(2) nm, c=1.998 7(4) nm, β=101.97(3)°, Z=4. For 1, Zn(Ⅱ) bridged by bpta ligands to form a 1D chain, through the hydrogen bonding interaction between water molecules and carboxylate oxygen atoms, further extend 1D chains into a 3D structure. For 2, Zn(Ⅱ) were linked by bip ligands to form a 1D helical chain, and 1D chains further connected by bpta ligands to form 2D network. In addition, TG and luminescent properties of two complexes have also been investigated.CCDC: 929651, 1; CCDC: 929652, 2. |
| Keywords: coordination polymers crystal structure biphenyl-3,3’,5-tricarboxylic acid 2,6-bis(imidazole-1-yl)pyridine |
| 投稿时间：2013-04-10 修订日期：2013-11-09 |
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| 王淑菊,田彦文,由立新,丁茯,孙亚光.含联苯三羧酸及二咪唑基吡啶配体的两个锌配位聚合物的合成、结构及荧光性质[J].无机化学学报,2014,30(3):511-516. |
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| Support information: 相关附件： file130239 Supporting Information.pdf |
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