| 两个一维镁配位聚合物的合成、晶体结构和荧光性质 |
| Synthesis, Crystal Structures and Fluorescence Property of Two One-Dimensional Coordination Polymers of Magnesium |
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| 摘要: 本文以Mg(NO3)2·6H2O分别与4，5-咪唑二羧酸(4，5-imidazoledicarboxylic acid，H3imdc)和3，5-吡唑二羧酸(3，5-pyrazoled-icarboxylic acid，H3pdc)通过水热反应合成了2个新型镁的一维配位聚合物[Mg(Himdc)(DMF)(H2O)]n (1)和[Mg(Hpdc)(H2O)2]n (2)，并对配位聚合物1和2进行了元素分析、FTIR、热重分析和X-射线单晶结构解析等表征。X-射线单晶结构解析表明配位聚合物1和2的晶体分别属于正交晶系与单斜晶系，空间群分别为P212121和P21/c。配合物1为一维Z字型链状结构，配合物2为一维线型链状结构，2个配合物中的链与链之间均通过氢键相互作用堆积成三维结构。对1和2进行固态荧光光谱分析，结果显示，1和2的荧光发射峰与各自的配体的荧光发射峰峰形一致，说明2个配合物的荧光发射峰应归属于各自配体内的π→π*电子跃迁。 |
| 关键词: 配位聚合物 4，5-咪唑二羧酸 3，5-吡唑二羧酸 氢键 荧光性质 |
| 基金项目: |
| Abstract: Two one-dimensional coordination polymers [Mg(Himdc)(DMF)(H2O)]n (1) and [Mg(Hpdc)(H2O)2]n (2) have been hydrothermally synthesized by the reactions of Mg(NO3)2·6H2O and 4,5-imidazoledicarboxylic acid or 3,5-pyrazoledicarboxylic acid, and characterized by elemental analysis, FTIR, thermal gravimetric analysis and X-ray diffraction single-crystal structural analysis. Two compounds crystallize in the orthorhombic and monoclinic, space group P212121 and P21/c for 1 and 2, respectively. Compound 1 shows one-dimensional zigzag chain structure, compound 2 shows one-dimensional linear chain structure, the chain and chain of 1 and 2 are both connected by hydrogen bonds to form three-dimensional structure. The fluorescence spectra of 1 and 2 were measured, the luminescence behaviors probably results from π→π* electronic transition of the respective ligand. CCDC: 832380, 1; 832381, 2. |
| Keywords: coordination polymers 4,5-imidazoledicarboxylic acid 3,5-pyrazoledicarboxylic acid hydrogen bonds fluorescence property |
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| 陈金喜,范巧玉.两个一维镁配位聚合物的合成、晶体结构和荧光性质[J].无机化学学报,2011,27(11):2185-2190. |
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