3-甲基-1-苯基-5-吡唑酮锌(II)配合物的合成及性质研究

Synthesis and Properties of Zinc Complex Derived from 3-methyl-1-phenyl-5-pyrazolone

摘要:

3-甲基-1-苯基-5-吡唑酮(HMPP)与醋酸锌反应得到配合物[Zn2(MPP)2(CH3COO)2]•H2O。通过元素分析、红外光谱、核磁共振氢谱、热重-差热和扫描电镜等方法对配合物的组成和结构进行了表征。用循环伏安法考察了该配合物的电化学行为，发现其电子转移是准可逆的。通过紫外光谱法研究了它与牛血清白蛋白的相互作用，发现二者通过氢键、van der Waals力结合。该配合物对Pb2+的吸附测试结果表明，在40 min内，配合物对25 mg/L的Pb2+的吸附去除率达99.74%。

Abstract:

The complex [Zn2(MPP)2(CH3COO)2]•H2O was synthesized by the reaction of 3-methyl-1-phenyl-5-pyrazolone (HMPP) with zinc acetate. The complex was characterized by means of elemental analysis, infrared spectrum, 1H NMR, thermal gravimetric and differential thermal analyses, and scanning electron microscope. The electrochemical behavior of the complex was investigated by cyclic voltammetric method, finding that the electron transfer process was quasi-reversible. The interaction of the complex with Bovine Serum Albumin (BSA) was studied by UV-vis spectroscopy, indicating that the complex combined to BSA by hydrogen bonding and Van Der Waals forces. The adsorption results of the complex to Pb2+ showed that the removal of Pb2+ was up to 99.74% within 40 min using the complex as absorbant.