Synthesis and Characterization of 8-Hydroxyquinoline Ligand and Trigonal bipyramidal Co(Ⅱ) Complex

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Synthesis and Characterization of 8-Hydroxyquinoline Ligand and Trigonal bipyramidal Co(Ⅱ) Complex

- Synthesis and Characterization of 8-Hydroxyquinoline Ligand and Trigonal bipyramidal Co(Ⅱ) Complex
- Vol. 32, Issue 4, Pages: 468-472(2013)
- 作者机构：
  
  黄山学院化学化工学院
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Synthesis and Characterization of 8-Hydroxyquinoline Ligand and Trigonal bipyramidal Co(Ⅱ) Complex. [J]. 32(4):468-472(2013)
DOI：

Synthesis and Characterization of 8-Hydroxyquinoline Ligand and Trigonal bipyramidal Co(Ⅱ) Complex. [J]. 32(4):468-472(2013) DOI：

摘要

以2-甲基-8羟基喹啉作为起始原料，两步反应合成有机双齿配体HL，并通过核磁、质谱和元素分析表征其结构；配体HL与Co(NO3)2反应生成单核配合物1，该配合物属单斜晶系，P2/c空间群，晶胞参数为a=10.967(7) ?，b=8.639(5) ?，c=18.087(11) ?;V=1 656.0(17)?3，Z=4，Dc=1.541 mg/m3，最终R1=0.032 0,wR2 =0.078 4。该配合物中钴原子是五配位，它们分别和两个配体中包含的N2O2 4个原子及一个吡啶N原子配位形成扭曲的三角双锥构型，X-射线粉末衍射表明其具有单一的纯相，热重分析表明其基本骨架具有较好的热稳定性。

Abstract

Bidentate ligand HL was prepared by two steps from the cheap commercial available 8-hydroxyquinoline and characterized by ESI-MS,NMR and elemental analysis methods.Mononuclear complex 1 was readily obtained in good yields by heating Co(NO3)2 and HL in solution.It belongs to monoclinic system with space group P2/c,a=10.967(7) ?,b= 8.639(5) ?,c=18.087(11) ?;V=1 656.0(17) ? 3,Z=4,Dc=1.541 mg/m3,R1=0.032 0,wR2=0.078 4.The cobalt atom found in the mononuclear unit is pentacoordinate,and adopts a distorted trigonal-bipyramidal geometry,and coordinates to four atoms N2O2 of two ligands and one pyridine N atom.The PXRD experiment showed that the crystal structure of complex 1 was truly representative of their bulk materials.From TGA results,the mononuclear complex was found to have a thermal stability.

关键词

8-羟基喹啉合成表征晶体结构

Keywords

8-hydroxyquinolinesynthesischaracterizationcrystal structure

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