Almost all life activities involve the process of multistep electron transfer (ET) which occurs on biomembrane. Metalloporphyrins (MTPPs) are a class of molecules which are closely related to life course. Here, the n-step (n = 1, 2) ET behaviors controlled by different metal ions in porphyrin cores were investigated by thin-layer cyclic voltammetry (TLCV). The bimolecular ET was reacted between the MTPP (M = Fe, Zn, Co, Cu, Ni) and Fe(CN)₆^4– in nitrobenzene and aqueous phase, respectively, and the interface between nitrobenzene and aqueous phase was considered as a bionic membrane. The thin-layer theory, which has been revised, was used to calculate the kinetic constants for each step electron transfer reactions. It was shown that the kinetic data were affected dramatically by the different coordinated ions in porphyrin complexes.

中文翻译：

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卟啉核中不同过渡金属离子控制界面连续多步电子转移的行为

几乎所有生命活动都涉及生物膜上发生的多步电子转移（ET）过程。金属卟啉（MTPPs）是一类与生命过程密切相关的分子。在这里，通过薄层循环伏安法（TLCV）研究了卟啉核中不同金属离子控制的n阶（n = 1，2）ET行为。双分子ET在MTPP（M = Fe，Zn，Co，Cu，Ni）和Fe（CN）₆ ^{4–之间反应}分别在硝基苯和水相中，硝基苯和水相之间的界面被认为是仿生膜。修改后的薄层理论用于计算每一步电子转移反应的动力学常数。结果表明，动力学数据受到卟啉配合物中不同配位离子的显着影响。