| 吡嗪缩氨基脲配体铜/锌配合物的晶体结构及荧光性质 | |
| Crystal Structures and Fluorescence Properties of Cu(Ⅱ)/Zn(Ⅱ) Complexes with a Semicarbazone Ligand Bearing Pyrazine Unit | |
| 摘要: 合成并通过单晶X射线衍射、元素分析及红外光谱表征了配合物[Cu2（L）2Br2]·CH3OH（1）和[Zn2（L）2（CH3COO）2]·2CH3OH（2）的结构（HL为3-乙基-2-乙酰吡嗪缩4-苯基氨基脲）。单晶衍射结果表明，配合物1中，中心Cu（Ⅱ）离子与来自1个三齿缩氨基脲配体阴离子和2个μ2-桥联的溴离子配位，拥有扭曲的四方锥配位构型。配合物2中Zn（Ⅱ）离子配位构型与配合物1中Cu（Ⅱ）离子的相同，周围的供体原子为N2O3。配合物2中的2个醋酸根的配位模式不尽相同，其中一个为μ-OCO双齿桥联，另外一个为μ-O单齿桥联。甲醇溶液中，配合物1和2的荧光发射峰与配体HL相似。 | |
| 关键词: 缩氨基脲 铜配合物 锌配合物 吡嗪 荧光 | |
| 基金项目: 国家自然科学基金（No.21001040）、河南省科技厅基础与前沿项目（No.162300410011）和教育厅自然科学基金（No.12B150011和14B150029）资助。 | |
| Abstract: Two complexes, namely,[Cu2(L)2Br2]·CH3OH (1) and[Zn2(L)2(CH3COO)2]·2CH3OH(2) (HL=1-(3-ethylpyrazin-2-yl)ethylidene-4-phenylsemicarbazide) have been synthesized and characterized by single crystal X-ray diffraction, elemental analysis and IR spectroscopy. In complex 1, the center Cu(Ⅱ) ion with a distorted square pyramid coordination geometry is coordinated by one tridentate deprotonated semicarbazone with N2O donor set and two μ2-bridged bromide anions. The coordination geometry of the Zn(Ⅱ) ion in complex 2 is same as that of the Cu(Ⅱ) ion in complex 1, while with N2O3 donor set. In addition, two acetate anions in complex 2 exhibit different coordination modes, one of which is bidentate bridge (μ-OCO), while the other one is oxygen bridge (μ-O). In the methanol solution, both complexes exhibit the intra-ligand emission. | |
| Keywords: semicarbazone Cu(Ⅱ) complex Zn(Ⅱ) complex pyrazine fluorescence | |
| 投稿时间：2016-11-11 修订日期：2016-12-08 | |
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| 吴浩,陈泽华,于亚平,赵玲玲,吴伟娜,王元.吡嗪缩氨基脲配体铜/锌配合物的晶体结构及荧光性质[J].无机化学学报,2017,33(4):699-704. | |
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