20-tetrakis(4-sulfonatophenyl)porphine:N-PhTPPS4) have been studied spectrophotometrically. The reaction proceeded through two parallel paths; one involving Zn2+ with a rate constant, k, and the other involving ZnOH+ with a rate constant, kOH. The rate constants (25 °C) and activation parameters at I = 0.10 M (NaNO3) were as follows (1 M = 1 mol dm−3): for N-PhTPPS3 k = (2.8 ± 0.1) × 103 M−1 s−1, kOH = (2.1 ±
锌 (II) 离子掺入
水溶性 N-苯基
卟啉(N-苯基-5,10,20-三(4-磺基苯基)-15-苯基
卟啉:N-Ph
TPPS3 和 N-苯基-5,10,15)的动力学,20-四(4-磺基苯基)
卟啉:N-Ph
TPPS4) 已通过分光光度法进行了研究。反应通过两条平行路径进行;一种涉及具有速率常数 k 的 Zn2+,另一种涉及具有速率常数 kOH 的 ZnOH+。I = 0.10 M (NaNO3) 时的速率常数 (25 °C) 和活化参数如下 (1 M = 1 mol dm−3):对于 N-Ph
TPPS3 k = (2.8 ± 0.1) × 103 M−1 s −1, kOH = (2.1 ± 0.1) × 106 M−1 s−1, ΔH≠ = 54 ± 3 kJ mol−1, ΔHOH≠ = 26 ± 2 kJ mol−1, ΔS≠ = 1 ± 10 JK−1 mol−1, ΔSOH≠ = −37