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錳、鐵、鈷超氧化物之概論

Survey of Manganese, Iron, Cobalt Superoxide

摘要


金屬超氧化物是氧氣活化過程中的一個重要中間體,而在生物體中有含血基質和非血基質活性中心之酵素可以進行氧氣活化,形成金屬超氧化物來進行碳氫鍵之活化,近年來化學家使用光譜學的方法來探討酵素當中所形成的超氧化物中間體。相對於自然界中的酵素有蛋白質包覆著活性中心,形成一複雜的結構,不易進行相關反應性之研究,而化學家合成仿生化合物,來模擬酵素當中的活性中心,以利於了解金屬超氧化物的反應活性。

並列摘要


Metal-superoxide is a pivotal intermediate in the oxygen activation cycle. In the biology system, heme and non-heme enzymes can activate dioxygen to generate metal-superoxide performing the C-H activation. Recently, chemists could use spectroscopic methods to investigate the metal-superoxo intermediates in the enzymes. In contrast to enzymes, which possess complicated structure not conducive for chemists to carry out related reactivity studies, using synthetic mimics for the studies of the active cite of enzymes is more effective to understand the reactivity properties of metal superoxide complexes.

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