RAMAN CHARACTERIZATION OF MANGANESE OXO COMPLEXES

锰氧配合物的拉曼表征

• 批准号: 6281803
• 负责人: CHRISTOPHER DUB
• 金额: $ 0.38万
• 依托单位: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
• 依托单位国家: 美国
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-06-01 至 1999-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6281803
• 关键词: bioengineering /biomedical engineering; biological products; biomaterials; biomedical resource

The manganese aggregate in photosystem II (PSII) is arguably one of the most important metal sites in biology, as it is the source of the O2 required for aerobic life. A number of polynuclear manganese complexes have been prepared which exhibit structural and spectroscopic features relevant to PSII. Raman spectroscopy is being used to study the core structure (Mn4O6)4+ of these complexes to determine the presence of an O-O bond. Formation of an O-O bond between terminal or bridging oxo-ligands prior to release of O2 has been proposed as one of the mechanisms for water oxidation in PSII.

光系统II（PSII）中的锰骨料可以说是一个 生物学中最重要的金属站点是 有氧生活所需的O2。 许多多核锰 已经准备好配合物，表现出结构性和 光谱特征与PSII相关。 拉曼光谱正在 用于研究这些复合物的核心结构（MN4O6）4+ 确定O-O键的存在。 O-O键的形成 在释放O2之前，在末端或桥接的Oxo-rigands之间 被提出是PSII中水氧化的机制之一。