高等学校化学学报 ›› 2013, Vol. 34 ›› Issue (5): 1041-1046.doi: 10.7503/cjcu20121110

• 研究论文: 无机化学 • 上一篇    下一篇

两个半夹心型聚吡唑硼酸盐羧酸钴配合物的合成、结构及催化活性

邢娜1, 单辉1, 宋鸽1, 魏东明1, 李光华2, 施展2, 邢永恒1   

  1. 1. 辽宁师范大学化学化工学院, 大连 116029;
    2. 无机合成与制备化学国家重点实验室, 吉林大学化学学院, 长春 130012
  • 收稿日期:2012-12-10 出版日期:2013-05-10 发布日期:2013-05-10
  • 通讯作者: 邢永恒, 男, 博士, 教授, 主要从事生物无机化学和药物配位化学方面的研究. E-mail: xingyongheng2000@163.com E-mail:xingyongheng2000@163.com
  • 基金资助:

    国家自然科学基金(批准号: 21071071)、 辽宁省博士科研启动基金(批准号: 20111067)、 大连市优秀青年科技人才基金(批准号: 2012J21DW007)和无机合成与制备化学国家重点实验室(吉林大学)开放课题基金(批准号: 2013-05)资助.

Syntheses, Structures and Properties of Two Half-sandwich Cobalt Carboxylate Complexes with Tris(pyrazolyl)borate Ligand

XING Na1, SHAN Hui1, SONG Ge1, WEI Dong-Ming1, LI Guang-Hua2, SHI Zhan2, XING Yong-Heng1   

  1. 1. College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China;
    2. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
  • Received:2012-12-10 Online:2013-05-10 Published:2013-05-10

摘要:

设计合成了2个结构新颖的半夹心单核聚吡唑硼酸盐羧酸配合物Tp*Co(Hglu)(CH3OH)(1)和Tp*Co(Hsub)(H2O)(2)[Tp*=三聚(3,5-二甲基吡唑)硼酸根, H2glu=戊二酸, H2sub=辛二酸], 并通过元素分析、 红外光谱、 紫外-可见光谱和X射线单晶结构分析对标题配合物进行了表征. 结构分析表明, 在配合物12中, 配体Tp*都是三齿配位, 配位模式相同; 戊二酸和辛二酸都以μ1-η1-η1的端基配位模式与金属相连. 此外, 还对配合物的热稳定性进行了详细分析, 并初步探讨了配合物催化氧化环己烷的催化活性.

关键词: 钴配合物, 聚吡唑硼酸盐, 晶体结构, 热稳定性, 催化活性

Abstract:

Two new mononuclear complexes Tp*Co(Hglu)(CH3OH)(1) and Tp*Co(Hsub)(H2O)(2) have been synthesized successfully. The complexes were characterized by elemental analysis, IR, UV-Vis spectroscopy and single-crystal X-ray diffraction. Structural analysis reveals that in complexes 1 and 2, the coordination mode of the ligand Tp* is terminal tridentate chelated coordination mode. While the glutaric or suberic acid ligand adopt a μ2-η1-η1 linking fashion. In addition, the thermal stability and the activity in catalytic oxidation of cyclohexane have been discussed.

Key words: Cobalt complex, Tris(pyrazolyl)borate, Crystal structure, Thermal stability, Catalytic activity

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