| 抗坏血酸对Cu~（2＋）与TPPS_3配位反应促进机理的研究 |
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| 引用本文： | 李卫华.抗坏血酸对Cu~（2＋）与TPPS_3配位反应促进机理的研究[J].安徽大学学报(自然科学版),1995,19(2):77-81. |
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| 作者姓名： | 李卫华 |
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| 作者单位： | 安徽宿州师专化学系 |
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| 摘 要： | 本文利用可见吸收光谱法和直流极谱法研究了抗坏血酸对Ｃｕ（２＋）的还原性、Ｃｕ（２＋）的还原状态、抗坏血酸浓度及溶液中溶解氧浓度对Ｃｕ２＋与三磺基四苯基卟啉（ＴＰＰＳ３）配位反应的影响。实验证明，在抗坏血酸存在下，Ｃｕ２＋与ＴＰＰＳ３可能的配位反应机制为；抗坏血酸首先将Ｃｕ２＋还原为Ｃｕ２＋，Ｃｕ２＋与ＴＰＰＳ３生成很不稳定的、对溶解氧非常敏感的Ｃｕ（Ⅰ）－ＴＰＰＳ３中间体，此中间体一旦生成立即被溶液中的溶解氧氧化为Ｃｕ２＋（Ⅲ）－ＴＰＰＳ３配合物。
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| 关 键 词： | 抗坏血酸，Cu~（2＋），TPPS_3，反应机理 |
A Study on Vitamic C Promoting the Mechanism of the Complexing Reaction Between the Cu￣(2+) and TPPS_3 |
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| Li Weihua.A Study on Vitamic C Promoting the Mechanism of the Complexing Reaction Between the Cu￣(2+) and TPPS_3[J].Journal of Anhui University(Natural Sciences),1995,19(2):77-81. |
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| Authors: | Li Weihua |
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| Abstract: | With Visible absorption spetroscopy and direct current polaropam approach, this article studies Cu2+ and TPPS_3 complexing reaction being affected by the vitamin C reaction Cu2+ return to the state,the concentration of the aimrbic acid and dissolving oxygen in the solution. The results obtained indicated that the complexing reaction mechanism between Cu+ and TPPS3 may be:Cu2+ ￣+ Cu (I) TPPS3 Cu(Ⅱ) TPPS3. |
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| Keywords: | ascorbic acid cu￣(2+) TPPS_3 reaction mechanism |
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