• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Coordination chemistry reviews >High-valent metal-oxo complexes generated in catalytic oxidation reactions using water as an oxygen source
【24h】

High-valent metal-oxo complexes generated in catalytic oxidation reactions using water as an oxygen source

机译：以水为氧源的催化氧化反应中生成的高价金属-氧配合物

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

High-valent metal-oxo complexes are produced by successive electron-transfer oxidation of metal complexes with one-electron oxidants in the presence of water, which is an oxygen source in the generation of the metal-oxo complexes. Then, metal-oxo complexes oxidize substrates to yield oxygenated substrates, accompanied by the regeneration of reduced metal complexes. Thus, the oxidation of substrates using one-electron oxidants can be catalyzed by metal complexes via formation of high-valent metal-oxo complexes by the electron-transfer oxidation of metal complexes in the presence of water as an oxygen source. When water is used as a substrate, water is oxidized by one-electron oxidants to evolve dioxygen via an O-O bond formation process. The one-electron oxidants used for the formation of high-valent metal-oxo complexes can be replaced by much weaker oxidants, when a photosensitizing metal complex, such as [Ru(bpy)(3)](2+) (bpy = 2,2'-bipyridine), is employed as a photocatalyst, an oxidized form of the photocatalyst, which is generated via photoinduced electron transfer from the excited state to a weaker oxidant, can oxidize metal complexes in the presence of water to afford the high-valent metal-oxo complexes. Thus, the oxidation of substrates, including water oxidation, by weak oxidants can be catalyzed by metal complexes under photoirradiation of the photocatalyst using water as an oxygen source. (C) 2016 Elsevier B.V. All rights reserved.
机译：高价金属-氧代配合物是通过在水存在下用单电子氧化剂对金属配合物进行连续的电子转移氧化而制得的，水是金属-氧代配合物生成中的氧源。然后，金属-氧配合物氧化底物以产生含氧的底物，伴随着还原的金属配合物的再生。因此，在水作为氧源存在下，通过金属配合物的电子转移氧化形成高价金属-氧配合物，可以通过金属配合物催化使用单电子氧化剂的底物的氧化。当使用水作为底物时，水被单电子氧化剂氧化，并通过O-O键形成过程释放出双氧。当使用光敏金属络合物，例如[Ru（bpy）（3）]（2+）（bpy = 2）时，可以用弱得多的氧化剂代替用于形成高价金属-氧代络合物的单电子氧化剂。 （2'-联吡啶）用作光催化剂，该光催化剂的氧化形式是通过光诱导电子从激发态转移到弱氧化剂而产生的，它可以在水存在下氧化金属络合物，从而提供高价金属-氧配合物。因此，在使用水作为氧源的光催化剂的光照射下，金属配合物可以催化弱氧化剂对底物的氧化，包括水的氧化。 （C）2016 Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号