Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (5): 1025.

• Preface • Previous Articles     Next Articles

Synthesis, Structure and Mimic Catalytic Activity of Novel Vanadium Haloperoxidase Model Complexes

CAO Yun-Zhu1, LI Zhang-Peng1, XING Yong-Heng1*, WEI Dong-Ming1, PU Zhi-Feng2, GE Mao-Fa2, SHI Zhan3   

  1. 1. College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China;
    2. Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China;
    3. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
  • Received:2010-09-09 Revised:2010-11-18 Online:2011-05-10 Published:2011-04-11
  • Contact: XING Yong-Heng E-mail:xingyongheng2000@163.com
  • Supported by:

    国家自然科学基金(批准号:  21071071)、吉林大学无机合成与制备化学国家重点实验室开放课题基金(批准号: 2010-15)和大连市教育基金(批准号:  2009J21DW004)资助.

Abstract: In order to mimicking the active center of the VHPO, we designed and synthesized a series of oxovanadium complexes containing poly(pyrazolyl)borate ligands: VO(HB(3,5-Me2pz)3)(3,5-Me2pz)(HOOCCH2CH2COO) and VO(HB(3,5-Me2pz)3)(3,5-Me2pz)(C5H4N-COO), and they have been characterized by X-ray single crystal diffraction. Based on vanadium(V) complexes catalyzing the visible conversion of phenol red to bromophenol blue under weak-acid conditions, we investigated the role of the oxovanadium complexes in the bromide oxidation reaction. It is found that the oxovanadium (IV) complexes can be considered as potential functional model of vanadium-dependent haloperoxidases. And the mechanism of the catalytic reaction is analyzed by molecular orbital theory.

Key words: Haloperoxidases, Mimic catalytic activity, Poly(pyrazolyl)borate, Oxovanadium (IV) complex, Crystal structure

CLC Number: 

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