| 3,4,5,6-四氟邻苯二甲酸与含氮配体的过渡金属配合物的合成、晶体结构及对Fe3+的荧光传感 |
| Syntheses,Crystal Structures and Fluorescence Sensing for Fe3+ of Transition Metal Complexes with 3,4,5,6-Tetrafluorophthalic Acid and N-Donor Ligands |
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| 摘要: 利用过渡金属盐与3，4，5，6-四氟邻苯二甲酸（H2TFPT）、1，3-二（4-吡啶基）-丙烷（DPP）和1，4-二（1，2，4-三氮唑）-1-丁烷（BTB）经水热法合成了3个新的配合物：{[M（TFPT）（DPP）]·H2O}n（M=Cd（1），Ni（2）），{[Cd（TFPT）（BTB）0.5]·2H2O}n（3）。通过X射线单晶衍射分析测定了它们的结构。配合物1和2具有相似的一维链结构。中心金属离子表现为扭曲的[MO4N2]八面体构型。配合物3具有二维结构。中心金属离子表现为扭曲的[CdO5N]八面体构型。配合物1和3分别在424 nm、442 nm处出现来自于配体的荧光发射，对应于配体的π*-π的跃迁，配合物2在356 nm处有非常弱的荧光发射。不同金属阳离子对配合物1和3的荧光强度有不同程度的影响，并且通过荧光的猝灭机理，它们都能选择性检测Fe3+离子。 |
| 关键词: 过渡金属配合物 四氟邻苯二甲酸 晶体结构 荧光 |
| 基金项目: 国家自然科学基金（No.21471104）和首都师范大学交叉科研项目资助 |
| Abstract: Three new complexes,{[M (TFPT)(DPP)]·H2O}n(M=Cd (1),Ni (2)),{[Cd (TFPT)(BTB)0.5]·2H2O}n(3) were synthesized by using transition metal salts,3,4,5,6-tetrafluorophthalate (TFPT),1,3-di (4-pyridyl)-propane (DPP) and 1,4-bis (1,2,4-triazol-1-yl) butane (BTB) by hydrothermal method.The crystal structures were determined by single crystal X-ray diffraction.Complexes 1 and 2 have similar one-dimensional chain structure.The configuration of center metal ion is distorted octahedral of[MO4N2].Complex 3 is two-dimensional structure.The configuration of center metal ion is distorted octahedral of[CdO5N].Complexes 1 and 3 have ligand-based fluorescence emissions,which are corresponding to π*-π transition of the ligand at 424 nm and 442 nm,respectively.Complex 2 has very weak fluorescence emission at 356 nm.It is interesting to note that different metal cations have different effects on fluorescence of complexes 1 and 3.They would be regarded as a sensor for Fe3+ ions in aqueous solutions via a fluorescence quenching mechanism. |
| Keywords: transition metal complexes 3,4,5,6-tetrafluorophthalic acid crystal structure fluorescence |
| 投稿时间：2016-12-27 修订日期：2017-05-09 |
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| 张美娜,郑晓丽,屈相龙,李夏,高源.3,4,5,6-四氟邻苯二甲酸与含氮配体的过渡金属配合物的合成、晶体结构及对Fe3+的荧光传感[J].无机化学学报,2017,33(7):1172-1180. |
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