金属离子与卟啉的嵌入反应动力学研究 Ⅴ.四苯并卟啉衍生物与铜（Ⅱ）的配位反应

金属离子与卟啉的嵌入反应动力学研究 Ⅴ.四苯并卟啉衍生物与铜（Ⅱ）的配位反应 STUDIES ON KINETICS OF INCORPORATION OF METAL ION INTO PORPHYRIN Ⅴ. Reaction of Cu（Ⅱ） with Derivatives of tetraphenylporphyrin 潘志权 Pan Zhiquan 1 2 3 first-author 董平安 Dong Pingan 1 2 3 任建国 Ren Jianguo 1 2 3 秦子斌 Qin Zibin 1 2 3 武汉大学化学系 武汉大学化学系 Department of Chemistry, Wuhan University Department of Chemistry, Wuhan University 武汉大学化学系,武汉 武汉大学化学系,武汉 ,430072 ,430072 合成了4种新型的四苯并卟啉衍生物(简记为T -PyPA PP,T -αMPyPA PP,T -γMPyPA PP,T -,γDMPyPA PP),对其进行了表征,并在乙酸缓冲溶液中研究了它们与Cu 2+ 离子的反应动力学,提出了该类卟啉与Cu 2+ 反应的可能反应机理。 Four new derivertives of meso-tetraphenylporphyrin (T o-PyPA PP,T o-αMPyPA PP,T o-γMPyPA PP,and T o-α,γDMPyPA PP)were synthesized and the reaction kinetics of Cu（Ⅱ）ion incorporating to the porphyrins have been studied in acetic acid buffer solution. The rate equation of the reaction is expressed by d[CuP 4+ ]/dt=[Cu 2+ ][Ac - ][H 2 P 4+ ]/(k -1 [HAc]/k +1 k +2 K+[Cu 2+ ]/k +1 K), where [CuP 4+ ] is the concentration of the metal porphyrin, [H 2 P 4+ ] expressed the concentration of free porphyrin, k +1 K=0.658mol -1 ·L·s -1 ,k +2 /k -1 =24.2 for T o-PyPA PP;k +1 K=0.685mol -1 ·L·s -1 , k +2 /k -1 =3.41 for T o-αMPyPA PP; k +1 K=0.256mol -1 ·L·s -1 , k +2 /k -1 =46.8 for T o-γMPyPA PP; k +1 K=0.373 mol -1 ·L·s -1 ,k +1 /k -1 =22.9 for T o-α.γDMPyPA PP. The mechanism of the incorporation reaction were proposed. 卟啉的合成 反应动力学 嵌入反应 syntheses of porphyrin reaction kinetics incorporation reaction O641.4 国家自然科学基金(61672102) 1993-03-01 2021-04-01 3