| 新型三维刚柔多羧酸稀土配位聚合物，[Gd(bta)0.5(ad)0.5(H2O)]n，的水热合成、结构及热稳定性质 |
| A Novel 3D Lanthanide Coordination Polymer [Gd(bta)0.5(ad)0.5(H2O)]n Based on Both Rigid and Flexible Polycarboxylate Acids as Ligands: Synthesis, Structure and Thermal Stability Property |
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| 摘要: 采用水热方法,合成出一种新颖的刚柔混合多羧酸稀土配位聚合物[Gd(bta)0.5(ad)0.5(H2O)]n(H2ad=己二酸，H4bta=1，2，4，5-均苯四甲酸)，并通过元素分析、红外光谱、X射线单晶结构分析对标题配合物进行了表征。标题配合物属于单斜晶系，P21/n空间群，晶胞参数a=0.777 65(18) nm，b=0.724 05(17) nm，c=1.735 1(4) nm，β=91.649(3)°，V=0.976 6(4) nm3，Dc=2.533 g·cm-3，Z=4。结构分析表明：标题配合物结构中含有沿[100]方向的无限一维Tb-O-Tb聚合链。此Tb-O-Tb聚合链通过桥连配体1，2，4，5-均苯四甲酸与己二酸连接，最终形成复杂的三维开放网络结构。此外，我们还对标题化合物的热稳定性做了研究。 |
| 关键词: 钆配合物 1，2，4，5-均苯四甲酸 己二酸 水热合成 晶体结构 热稳定性 |
| 基金项目: |
| Abstract: A novel lanthanide coordination polymer [Gd(bta)0.5(ad)0.5(H2O)]n(H2ad=adipic acid; H4bta=1,2,4,5-Benzenetetracarboxylic acid) based on both rigid and flexible polycarboxylate acids as ligands was synthesized hydrothermally. It was characterized by elemental analysis, IR spectroscopy, and single-crystal X-ray diffraction. The title complex belongs to monoclinic system, space group P21/n. The cell parameters are: a=0.777 65(18) nm, b=0.724 05(17) nm, c=1.735 1(4) nm, β=91.649(3)°, V=0.976 6(4) nm3, Dc=2.533 g·cm-3, Z=4. The structure analysis of the complex reveals that the title complex contains one 1D Tb-O-Tb polymeric chain along [100] direction. The Tb-O-Tb polymeric chains were further connected by bta and adipate bridging ligands, consequently, to form a complicated 3D open framework structure. In addition, we have investigated the thermal stability of the title complex. CCDC: 761948. |
| Keywords: gadolinium coordination polymer 1,2,4,5-benzenetetracarboxylic acid adipic acid hydrothermal synthesis crystal structure thermal stability |
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| 侯克玲,王建玲,邓朝艳,邢永恒,施 展.新型三维刚柔多羧酸稀土配位聚合物，[Gd(bta)0.5(ad)0.5(H2O)]n，的水热合成、结构及热稳定性质[J].无机化学学报,2011,27(7):1314-1318. |
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