| 喹啉酰腙铜锌配合物的结构及荧光性质 |
| Cu(Ⅱ) and Zn(Ⅱ) Complexes with an Acylhydrazone Ligand Bearing Quinoline Unit: Crystal Structures and Fluorescence Property |
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| 摘要: 合成了配合物{[Cu（L）（OAc）]·MeOH}n（1）和[Zn（L）（OAc）]n（2）（HL为喹啉-8-甲醛缩异烟肼），并通过单晶X射线衍射、元素分析、红外光谱表征了结构。单晶衍射结果表明，除了结晶溶剂不同，2个配合物结构类似。每个配合物中，中心金属离子与来自烯醇化脱质子配体L-的2个O原子和1个N原子，1个单齿配位的醋酸根和相邻配体4-吡啶N原子配位，形成一维链状结构。但配合物中金属离子的配位构型分别为扭曲的四方锥和三角双锥。在360 nm紫外光激发下，甲醇溶液中配合物2在510 nm左右有很强的荧光发射，这是由锌离子配位荧光增强效应所导致。 |
| 关键词: 喹啉 酰腙 Cu(Ⅱ)配合物 Zn(Ⅱ)配合物 荧光 晶体结构 |
| 基金项目: 国家自然科学基金（No.21001040，21404033，21401046）、河南省科技厅基础与前沿项目（No.162300410011）和河南省教育厅自然科学基金（No.12B150011，14B150029）资助。 |
| Abstract: Two complexes, {[Cu(L)(OAc)]·MeOH}n(1) and[Zn(L)(OAc)]n(2) (HL is the acylhydrazone ligand derived from 8-formylquinoline and isonicotinohydrazide) have been synthesized and characterized by single-crystal X-ray diffraction, elemental analysis and IR spectroscopy. X-ray diffraction analysis results show that the structures of both complexes are quite similar. The metal ion in each complex is five-coordinated, involving one monodentate acetate anion, NO2 donor set of an enolizated ligand L- and one pyridine nitrogen atom from another adjacent acylhydrazone ligand, thus forming one dimension chain-like framework. The coordination geometry of the centre ion is a distorted tetragonal pyramid in 1, whilst a trigonal bipyramid in 2. When excited at 360 nm, complex 2 exhibits strong emission at about 510 nm in methanol solution, primarily due to the CHEF effect of the Zn(Ⅱ) ion. CCDC:1414665, 1; 1489193, 2. |
| Keywords: quinoline hydrazone Cu(Ⅱ) complex Zn(Ⅱ) complex fluorescence crystal structure |
| 投稿时间：2016-07-01 修订日期：2016-09-12 |
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| 常慧琴,原知则,赖晓晴,吴伟娜,王元.喹啉酰腙铜锌配合物的结构及荧光性质[J].无机化学学报,2016,32(11):2058-2062. |
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