| 以2, 4-二氯苯氧乙酸构筑的一维链状钕配位聚合物:合成、晶体结构和荧光性质 |
| Synthesis, Structure and Photoluminescence of One Neodymium(Ⅲ) Coordination Polymer Based on 2,4-Dichlorophenoxyacetate |
|
| 摘要: 水热条件下采用Nd(NO3)3·6H2O, 2, 4-二氯苯氧乙酸(Hdcp)和4, 4′-联吡啶(bpy)为反应物合成出一个新的具有一维链状结构的金属有机配位聚合物{[Nd(dcp)3(H2O)2]·1.5bpy·2H2O}n (1), 并分别用元素分析, 红外谱图, 差热分析, X-射线粉末衍射, 紫外-可见光谱和X-射线单晶衍射表征该结构。晶体结构结果分析表明:2, 4-二氯苯氧乙酸离子(dcp)将Nd(Ⅲ)离子连接成一维链状结构(由{Nd2(dcp)6(H2O)4}重复单元构成), 相邻链之间通过氢键作用最终被连接成二维网络结构。荧光谱图表明常温固态下配合物1发射近红外荧光, 荧光寿命为3.27 ms。 |
| 关键词: 钕配位聚合物 晶体结构 2, 4-二氯苯氧乙酸 4, 4′-联吡啶 荧光性质 |
| 基金项目: 中南大学粉末冶金国家重点实验室基金、中南大学中央高校基本科研业务费青年助推(No.201012200191)资助项目。 |
| Abstract: The self-assembly of 2,4-dichlorophenoxyacetic acid (Hdcp), 4,4′-bipyridine (bpy) and Nd(NO3)3·6H2O under hydrothermal condition gave one new 1D neodymium coordination polymer, {[Nd(dcp)3(H2O)2]·1.5bpy·2H2O}n (1) (dcp=2,4-dichlorophenoxyacetate, bpy=4,4′-bipyridine) which has been characterized by elemental analysis, IR, TGA, PXRD, UV-Vis and single-crystal X-ray diffraction. The dcp ligands linked the Nd(Ⅲ) ions to form an infinite linear chain with a {Nd2(dcp)6(H2O)4} repeat units. Neighboring chains are bridged into a layer structure through O-H…O and O-H…N hydrogen bonds involving the coordinated water molecules, free water molecules and free bpy ligands. The photoluminescence and lifetime of complex 1 in the solid state at room temperature have been studied. CCDC: 894242. |
| Keywords: neodymium(Ⅲ) coordination polymer crystal structure 2,4-dichlorophenoxyacetate 4,4′-bipyridine luminescent |
| 投稿时间：2012-08-03 修订日期：2012-11-27 |
| 摘要点击次数: 2409 |
| 全文下载次数: 2672 |
| 蒋历辉,马德运.以2, 4-二氯苯氧乙酸构筑的一维链状钕配位聚合物:合成、晶体结构和荧光性质[J].无机化学学报,2013,29(4):883-888. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| Support information: |
|
|
|
|
|
|
