根据卟啉与金属醋酸盐反应生成金属卟啉和醋酸会使电导增加的原理,我们用电导法测定了四苯基卟啉(TPP)与醋酸钴在 DMF 溶液中反应的速率与两反应物浓度的关系,并在适当的条件下计算了反应的速率常数 k.结果表明,络合反应速率与 TPP 浓度、醋酸钴浓度成正比,反应分二步进行,有中间过渡态形成。 According to the principle that porphyrin reacts with metal acetate to form metal porphyrin and acetic acid, the conductivity is increased. The conductivity of tetraphenylporphyrin (TPP) and cobalt acetate in DMF solution is determined by conductivity method. And the rate constant k of the reaction was calculated under the proper conditions.The results showed that the rate of the complexation reaction was proportional to the concentration of TPP and the concentration of cobalt acetate and the reaction proceeded in two steps with the formation of intermediate transition state.