The kinetics of zinc incorporation from pH 12 to 13 into the centrally aprotic BrP (4)2+ form of beta-octabromo-meso-tetrakis(N-methyl-4-pyridyl)porphyrin and its monolithium complex were studied at 25.0 °C, ionic strength (I) = 0.10. The reactions were first order in porphyrin and total zinc concentrations. For BrP (4)2+, the specific rate constant was 5.1 × 105 M -1 s -1 for Zn ( OH )2 aq , 9.9 × 104 M -1 s -1 for [Formula: see text] and [Formula: see text] was unreactive. The Li - BrP (4)3+ complex had a formation constant with BrP (4)2+ of 1.1 × 103 M -1 from both kinetic and equilibrium measurements. In solutions containing both BrP (4)2+ and Li - BrP (4)3+, zinc incorporation proceeded only through BrP (4)2+.

中文翻译：

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锌离子在碱基中掺入中心非质子β-八溴化阳离子水溶性卟啉及其单锂配合物的动力学

锌从 pH 12 到 13 加入中枢非质子 BrP 的动力学 (4)2+在 25.0 °C、离子强度 (I) = 0.10 下研究了β-八溴-内消旋四(N-甲基-4-吡啶基)卟啉及其单锂配合物的形式。这些反应在卟啉和总锌浓度方面是一级反应。对于溴化钾 (4)2+，比速率常数为 5.1 × 105米-1s-1对于 Zn ( OH )2水, 9.9 × 104米-1s-1对于 [公式：见文本] 和 [公式：见文本] 没有反应。Li-BrP (4)3+络合物与 BrP 具有形成常数 (4)2+1.1 × 103米-1从动力学和平衡测量。在同时含有 BrP (4) 的溶液中2+和 Li - BrP (4)3+, 锌掺入仅通过 BrP (4)2+.