| 两例相同混合配体构筑的Pb(Ⅱ)/Ag(I)配位聚合物及其荧光性质 |
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| 引用本文： | 刘朋,陈洪霞.两例相同混合配体构筑的Pb(Ⅱ)/Ag(I)配位聚合物及其荧光性质[J].人工晶体学报,2021,50(8):1444-1451. |
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| 作者姓名： | 刘朋 陈洪霞 |
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| 作者单位： | 1.苏州大学分析测试中心,苏州 215123;2.苏州华源控股股份有限公司,苏州 215000;3.苏州大学实验室与设备管理处,苏州 215021 |
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| 基金项目： | 苏州大学人才引进科研启动经费(Q420400113) |
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| 摘 要： | 多齿配体2-咪唑乙酸(Hima)、4,4'-连吡啶分别与金属盐Pb(NO3)2和AgNO3反应,得到Pb2(4,4'-bipy)(ima)(NO3)3]n(1, 3D framework)和Ag4(4, 4'-bipy)3(ima)2(NO3)2(H2O)2]n(2, 3D framework)两个配位聚合物。根据配位聚合物的结构特点,研究了这两个配位聚合物荧光性质等物理化学性能。配位聚合物1在最大激发波长(λex=346 nm)激发下,荧光的最大发射波长为552 nm,配位聚合物2在最大激发波长(λex=369 nm)激发下,荧光的最大发射波长为444 nm。这可能是由于金属和配体之间发生了电荷转移(LMCT)。
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| 关 键 词： | 配位聚合物 光稳定 荧光性质 3D框架 配体金属电荷转移 |
| 收稿时间： | 2021-04-29 |
Two Pb(Ⅱ)/Ag(I) Coordination Polymers Constructed by the Same Mixed Ligand and Their Fluorescence Properties |
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| LIU Peng,CHEN Hongxia.Two Pb(Ⅱ)/Ag(I) Coordination Polymers Constructed by the Same Mixed Ligand and Their Fluorescence Properties[J].Journal of Synthetic Crystals,2021,50(8):1444-1451. |
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| Authors: | LIU Peng CHEN Hongxia |
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| Affiliation: | 1. Testing and Analysis Center, Soochow University, Suzhou 215123, China;2. Suzhou Hycan Holdings Co., Ltd., Suzhou 215000, China;3. Department of Laboratory and Equipment Management, Soochow University, Suzhou 215021, China |
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| Abstract: | The 2-(1H-imidazol-1-yl) acetic acid (Hima), 4,4'-bpy, reacts with metal ions Pb(NO3)2 and AgNO3 respectively. Finally, Pb2(4,4'-bipy)(ima)(NO3)3]n (1, 3D framework) and Ag4(4, 4'-bipy)3(ima)2(NO3)2(H2O)2]n (2, 3D framework) coordination polymers were obtained. Based on the structural characterizations of the corresponding compounds, their chemical and physical properties, such as photoluminescence was investigated. The solid-state photoluminescence spectra of 1 and 2 at room temperature are observed to have their main emission at 552 nm and 444 nm (λex=346 nm for 1, 369 nm for 2), respectively, which is mainly assigned to the ligand-metal charge transfer (LMCT). |
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| Keywords: | coordination compound photo-stability fluorescence property 3D framework ligand-metal charge transfer |
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