锌、镉及汞卟啉生成反应动力学研究

Kinetic Studies on the Formation Reaction of Zinc(Ⅱ)、Cadmium(Ⅱ) and Mercury(Ⅱ) with Porphyrins

对四-间甲基-苯基卟啉H2T(m－CH3)PP与Zn（Ⅱ）、Cd（Ⅱ）、Hg（Ⅱ）在丙酮中、四苯基卟啉H2TPP与Zn（Ⅱ）在丙固和DMF中的生成反应动力学进行了研究,根据我们的实验结果和对前人工作的总结，提出了较为合理的反应机理，用非线性拟合的方法求得各基无步骤的动力学参数．合理解释了锌、镉、汞卟啉生成反应体系的区别，探讨了温度和溶剂对该反应体系的影响．

The kinetics of formation reastion of Zn(Ⅱ)、 Cd(Ⅱ)、 Hg(Ⅱ) with meta-methyl tetraphenylporphyrin (H2T(m-CH3)PP) in acetone and Zn(Ⅱ) with tetraphenylporphyrin (H2TPP) in acetone or in DMF have been studied. A general mechanism was proposed and the kinetic parameters were obtained by non-linear least-squares program. The different behavior of the reartion system of Zn(Ⅱ)、 Cd(Ⅱ)、 Hg(Ⅱ) have been interpreted reasonably. The effects of temperature and solvent on the reaction rate were also investigated in this paper.