| 吡嗪酰腙席夫碱单核Co(Ⅱ)配合物的合成与磁性 |
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| 引用本文： | 陈瑜,王召东.吡嗪酰腙席夫碱单核Co(Ⅱ)配合物的合成与磁性[J].无机化学学报,2021,37(3):525-530. |
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| 作者姓名： | 陈瑜 王召东 |
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| 作者单位： | 重庆文理学院化学与环境工程学院, 环境材料与修复技术重庆市重点实验室, 重庆 402160 |
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| 基金项目： | 重庆文理学院重大科研项目培育基金（No.P2017CH10）和重庆市永川区科技局自然科学基金计划（No.2020nb0224）资助。 |
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| 摘 要： | 合成了一个基于吡嗪酰腙席夫碱配体H2L的单核Co(Ⅱ)配合物(NHEt3)Co(HL)2]·3H2O(1),并通过红外光谱、热重分析、X射线单晶衍射分析及变温磁化率测定等对配合物进行了表征。X射线单晶衍射分析表明,该配合物包含1个Co(Ⅱ)、2个去质子化的HL-配体以及未参与配位的3个水分子和1个质子化三乙胺,中心Co(Ⅱ)与N2O4六配位形成扭曲的八面体构型。配合物1以及去除水分子后的1的磁性测试表明二者均具有缓慢的高低自旋转换,其不同之处归属为氢键对磁性的影响。
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| 关 键 词： | 酰腙配体 单晶结构 自旋转换 单核钴配合物 |
| 收稿时间： | 2020/8/10 0:00:00 |
| 修稿时间： | 2020/11/16 0:00:00 |
Synthesis and Magnetic Characterization of Mononuclear Co(Ⅱ)Complex Based on Pyrazine-Containing Hydrazone Schiff Base Ligand |
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| CHEN Yu,WANG Zhao-Dong.Synthesis and Magnetic Characterization of Mononuclear Co(Ⅱ)Complex Based on Pyrazine-Containing Hydrazone Schiff Base Ligand[J].Chinese Journal of Inorganic Chemistry,2021,37(3):525-530. |
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| Authors: | CHEN Yu WANG Zhao-Dong |
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| Institution: | College of Chemistry and Environmental Engineering, Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, Chongqing University of Arts and Sciences, Chongqing 402160, China |
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| Abstract: | A mononuclear Co(Ⅱ)complex(NHEt3)Co(HL)2]·3H2O(1)based on a pyrazine-containing hydrazoneSchiff base ligand H2L was synthesized and characterized by IR,thermogravimetric analysis,X-ray single diffractionand magnetic susceptibility measurements.X-ray single crystal analysis reveals that it consists of a Co(Ⅱ)ion,twodeprotonated HL-ligands,three uncoordinated H2O and a protonated triethylamine.The central Co(Ⅱ)ion is six-coordinated with N2O4donor sets to form distorted octahedral geometry.Magnetic susceptibility measurement ofboth complex1 and the dehydrated1 showed a gradual high spin to low spin transition,and the differences can beattributed to the hydrogen bonding effects on the magnetic properties.CCDC:1973542,1(298 K);20274281,1(100 K). |
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| Keywords: | hydrazone ligand single crystal structure spin transition mononuclear Co complex |
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