4-氯苯乙酸构筑的一维铅配位聚合物的晶体结构、荧光性质和生物活性(英文)  

Lead(Ⅱ) Coordination Polymer with 4-Chlorophenoxyacetate as Ligand:Structure,Luminescence and Biological Bctivity

作　　者：薛俭雷[1] 田春华[1] 

机构地区：[1]齐齐哈尔医学院医学技术学院,齐齐哈尔161006

出　　处：《无机化学学报》2014年第4期907-912,共6页Chinese Journal of Inorganic Chemistry

基　　金：黑龙江省教育厅科学技术研究基金(No.12521640,12531833)资助项目

摘　　要：水热条件下采用Pb(NO3)2和4-氯苯乙酸作为反应物合成出1个新的一维铅配位聚合物[Pb(4-cpa)2(H2O)]n(1)(4-Hcpa=4-氯苯乙酸),并分别用元素分析、红外光谱、差热分析、X-射线粉末衍射和X-射线单晶衍射等表征了该结构。晶体结构分析结果表明:μ3桥联的4-氯苯甲酸将铅金属离子连接成一维链结构。荧光分析表明常温固态下配合物1发射蓝色荧光,且在422 nm处的荧光寿命为5.3 ns。以除草剂-精喹禾灵为对照品,考察了配体4-Hcpa和配合物1的生物活性。A new 1D lead（II） coordination polymer, [Pb（4-epa）2（H2O）]n （1, 4-cpa=4-chlorophenylaeetate）, has been hydrothermally synthesized and structurally characterized by elemental analysis, IR spectroscopy, TGA , powder X-ray diffraction and single crystal X-ray diffraction. Structural determination reveals that 1 exhibits an interesting 1D chain structure constructed by 4-cpa ligands. Solid-state 1 emits the intensely blue photoluminescence with fluorescence lifetime of 5.3 ns （422 nm） at room temperature. The 4-Hcpa ligand and complex 1 have been screened for their phytogrowth-inhibitory activities against Brassica napus L. and Echinochloa crusgalli L., and the results are compared with the activity of quizalofop-p-ethyl. CCDC： 946824.

关 键 词：铅配位聚合物 水热合成 晶体结构 荧光性质 生物活性 

分 类 号：O614.433[理学—无机化学]