(IV) - 氧化物复合物的形成及其氧化二氧化基酶反应活性
Atsutoshi Yokoyama1, Jung Eun Han, Jaeheung Cho
1Department of Bioinspired Science, Ewha Womans University, Seoul 120-750, Korea.
Journal of the American Chemical Society
|September 7, 2012
概括
这项研究详细介绍了复合物与氧和氧化的反应性. 一个 (IV) - 氧复合物与氧化发生反应,形成 (III) - 酸盐复合物,表现出受控的氧化还原反应.
科学领域:
- 无机化学 无机化学
- 协调化学 协调化学
- 生物有机化学 生物有机化学
背景情况:
- 复合物与四同宏环联体被研究,因为它们具有独特的反应性.
- 了解的氧化状态和结合模式对于催化和生物过程至关重要.
研究的目的:
- 为了研究一种特定的 (II) 复合物及其过氧衍生物的O(2) 和NO反应性.
- 描述这些-氧和-物种的结构和反应途径.
主要方法:
- 合成和表征复合物,包括光谱分析 (例如,UV-Vis,EPR) 和X射线晶体学.
- 研究复合体1和2的反应动力学和机制,其中有O(2) 和NO.
主要成果:
- 从 (II) 前体和O (II) 2中形成一个 (IV) -氧复合物 ([Cr (IV) 12-TMC) (O) 2) (Cl) +)) 的形成.
- X射线分析证实了 (IV) 复合体的侧面 η(2) -peroxo结合.
- (IV) - 氧复合物与NO的反应产生了 (III) - 酸盐复合物,这表明氧酸盐是一种中间体.
- 合成了一种 (II) - 尼基复合物 ([Cr (II) 12 - TMC (NO) Cl (+)) 但与O (II) 没有反应性.
结论:
- 与相关的 (IV) -氧复合物相比, (IV) -氧复合物表现出明显的反应性.
- 该研究阐明了一条由过氧物种激活和转化氧化的途径.
- (II) - 尼托复合体对O(2) 的惰性提供了对氧化还原化学的进一步了解.
相关概念视频
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o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox property is crucial in...
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox property is crucial in...
01:11ortho–para-Directing Activators: –CH3, –OH, –NH2, –OCH3
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03:08Rate-Determining Steps
Relating Reaction Mechanisms
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The concept of rate-determining step can be understood from the analogy of a 4-lane freeway with a short-stretch of traffic-bottleneck caused due to...
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01:19Nitrosation of Enols
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02:37Oxidation of Alcohols
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The process of oxidation in a chemical reaction is observed in any of the three forms:
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02:04Oxidation of Alkenes: Anti Dihydroxylation with Peroxy Acids
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