| 金属离子导向合成两个金属配位聚合物:晶体结构和荧光性质 | |
| Metal Ions Controlled Assembly of Two Coordination Polymers:Structures and Luminescence Properties | |
| 摘要: 以2，5-呋喃二羧酸和六水硝酸锌/四水硝酸镉为原料，在溶剂热条件下，合成出2个金属有机配位聚合物，[Zn（FDC）（DMF）2]n（1）和{（Me2NH2）2[Cd2（FDC）3（H2O）2]·4H2O}n（2）（H2FDC=2，5-呋喃二甲酸，DMF=N，N-二甲基甲酰胺）。通过元素分析、红外光谱、差热分析、X射线粉末衍射和X射线单晶衍射等手段对配合物进行了结构表征。结果显示，化合物1为一维链结构，通过分子间氢键作用构筑成二维结构；而2为二维（4，4）网络结构。热稳定性表明化合物1脱去DMF配体后稳定到300 ℃；而2脱去配体水、阴离子和溶剂分子后结构立即发生坍塌。常温固态下，激发波长分别为303 和350 nm时考察了配合物1和2的荧光性质，结果显示2个化合物均发射蓝色荧光（λmax=406，470 nm），荧光寿命分别为76.2和138.1 ns。 | |
| 关键词: 配位聚合物 晶体结构 2,5-呋喃二羧酸 金属离子效应 荧光性质 | |
| 基金项目: 大学生创新训练计划项目（No.201610580008）、广东省自然科学基金（No.2015A030310407）、广东省普通高校特色创新项目（No.2015KTSCX156）、2017年大学生科技创新培育专项资金（“攀登”计划专项资金）（No.pdjh2017b0551）和广东高校优秀青年教师培训计划项目（No.YQ2015168）资助 | |
| Abstract: Two zinc/cadmium-based coordination polymers (CPs),[Zn (FDC)(DMF)2]n(1) and{(Me2NH2)2[Cd2(FDC)3(H2O)2]·4H2O}n(2)(H2FDC=2,5-furandicarboxylic acid,DMF=N,N-dimethyl formamide) have been prepared based on 2,5-furandicarboxylate under the same reaction conditions (130℃ and DMF) and were structurally characterized by elemental analysis,IR,TGA,powder X-ray diffraction and single-crystal X-ray diffraction.Complex 1 performs a 1D chain structure,where the chains are further connected into 2D layer structure by hydrogen bonds,whereas 2 shows 2D (4,4) network and is unstable in air.The results of thermal analysis indicate that 1 is stable up to 300℃ after the DMF molecules are removed,but 2 is unstable after the aqua ligands,cations and solvent molecules are removed.Moreover,the luminescent properties of 1 and 2 were detected at room temperature under the excitations of 303 nm and 350 nm,respectively.Both of 1 and 2 emit the intensely blue characteristic luminescence at room temperature (λmax=406 and 470 nm),with lifetimes of up to 76.2 and 138.1 ns,respectively.CCDC:1489352,1;1527106,2. | |
| Keywords: coordination polymers crystal structure 2,5-furandicarboxylate metal ions effect luminescent 0 Introduction | |
| 投稿时间：2017-01-18 修订日期：2017-05-15 | |
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| 马德运,李湘,郭海福,马燕华,林婉纯,温美玲,蔡立文,朱立烽.金属离子导向合成两个金属配位聚合物:晶体结构和荧光性质[J].无机化学学报,2017,33(7):1266-1272. | |
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