| 含吡啶基配体的锌配合物的晶体结构和催化对硝基苯磷酸酯水解的活性研究 | |
| Crystal Structure of Zinc(Ⅱ) Complex Containing Pyridine and Its Catalytic Activity of Hydrolysis of p-Nitrophenyl Phosphate | |
| 摘要: 合成和表征了一种锌(Ⅱ)配合物[Zn2(L)Cl3]2[ZnCl4]·CH3CN·CH3OH·3H2O(L=1，1，4，7，7-五(2-吡啶甲基)-二乙基三胺)，并用对硝基苯磷酸酯(PNPP)作为反应底物测试了它的催化活性。研究结果表明配合物中的1个Zn(Ⅱ)形成变形的八面体构型，另1个Zn(Ⅱ)形成变形的三角双锥构型。它催化PNPP的水解符合米氏方程模型。在不同的条件下测试了几种反应动力学参数Vmax、Km和Kcat，发现锌(Ⅱ)配合物在30 ℃和pH=8.0时有最大的催化活性。 | |
| 关键词: 锌(Ⅱ)配合物 吡啶 晶体结构 催化活性 | |
| 基金项目: 国家自然科学基金（No.51173060）资助项目。 | |
| Abstract: A zinc(Ⅱ) complex [Zn2(L) Cl3]2[ZnCl4]·CH3CN·CH3OH·3H2O (L=1,1,4,7,7-Pentakis (2-pyridyl-methyl) diethylenetriamine) has been synthesized and structurally characterized, and its catalytic activity was investigated by using p-nitrophenyl phosphate (PNPP) as the substrate. The results showed that one zinc(Ⅱ)) of the complex was coordinated in a distorted trigonal-bipyramidal geometry, and the coordination geometry around another zinc(Ⅱ) was distorted octahedron. Its catalytic hydrolysis of PNPP was consistent with Michaelis-Mentent model. Several kinetic parameters Vmax, Km and Kcat were examined under different conditions, and maximal catalytic activity of zinc(Ⅱ) complex was observed at a temperature of 30 ℃ and pH=8.0. CCDC: 921868. | |
| Keywords: zinc(Ⅱ) complex pyridine crystal structure catalytic activity | |
| 投稿时间：2013-02-26 修订日期：2013-06-04 | |
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| 张勇,熊启杰,张南海,陈世明,张若璇,马志刚,陈雪梅.含吡啶基配体的锌配合物的晶体结构和催化对硝基苯磷酸酯水解的活性研究[J].无机化学学报,2013,29(12):2555-2560. | |
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