| 3-乙基-2-乙酰吡嗪缩4-苯基氨基脲铜/锌配合物的晶体结构及荧光性质 | |
| Crystal Structures and Fluorescence Property of Cu(Ⅱ)/Zn(Ⅱ) Complexes of 1-(3-Ethylpyrazin-2-yl) ethylidene-4-phenylsemicarbazide | |
| 摘要: 合成了配合物[Cu（HL）（H2O）（NO3）]NO3（1）和[Zn（HL）Cl2]（2）（HL为3-乙基-2-乙酰吡嗪缩4-苯基氨基脲），并通过单晶X射线衍射、元素分析及红外光谱表征了结构。单晶衍射结果表明，配合物1中，中心Cu(Ⅱ)离子与1个中性三齿缩氨基脲配体，1个水分子和1个硝酸根配位，配位构型为扭曲的四方锥。配合物2中Zn(Ⅱ)离子周围的配位原子为N2OCl2，其配位构型与配合物1中Cu(Ⅱ)离子的相同。甲醇溶液中，配合物2的荧光发射峰与配体HL相似。而配合物1由于配体和金属离子之间的能量转移，最大荧光发射峰略有红移。 | |
| 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.12B150011，14B150029）资助。 | |
| Abstract: Two complexes, namely[Cu(HL)(H2O)(NO3)]NO3 (1) and [Zn(HL)Cl2] (2) (where HL is 1-(3-ethylpyrazin-2-yl)ethylidene-4-phenylsemicarbazide) have been synthesized and characterized by single crystal X-ray diffraction, elemental analysis and IR spectroscopy. X-ray diffraction analysis results show that in complex 1, the center Cu(Ⅱ) ion is penta-coordinated by one neutral tridentate semicarbazone, one coordinated water molecule and one monodentate nitrate, thus giving a distorted square pyramid coordination geometry. 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 N2OCl2 donor set. In methanol solution, the fluorescence spectra of the ligand HL and complex 2 are quite similar, whilst the emission peak of complex 1 has slightly red-shift, primarily due to the charge transfer between the ligand and metal ion. CCDC:1497370, 1; 1497371, 2. | |
| Keywords: semicarbazone|Cu(Ⅱ) complex|Zn(Ⅱ) complex|pyrazine|fluorescence | |
| 投稿时间：2016-08-09 修订日期：2016-11-09 | |
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| 毛献杰,周利华,伏思连,尹航,赵晓雷,吴伟娜,王元.3-乙基-2-乙酰吡嗪缩4-苯基氨基脲铜/锌配合物的晶体结构及荧光性质[J].无机化学学报,2017,33(1):163-168. | |
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