Homogeneous and Heterogeneous Photooxidations

均相和非均相光氧化

• 批准号: 9400847
• 负责人: Edward Clennan
• 金额: $ 30.22万
• 依托单位: University of Wyoming
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-05-01 至 1997-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9400847&HistoricalAwards=false
• 关键词: Homogeneous; Heterogeneous; Photooxidations

In this project in the Organic Dynamics Program of the Chemistry Division, Edward L. Clennan of the University of Wyoming will study the reactions of singlet oxygen with sulfides, disulfides, sulfenamides, and sulfenate esters. Sulfenic acid derivatives will be covalently bonded by a hydrocarbon tether to silica surfaces and their heterogeneous photooxidations will be studied. Objectives are the clarification of reaction mechanisms, the development of new tools for analyzing reaction mechanisms, the discovery of new oxidizing agents, and the development of new synthetic methods. Reactions of singlet oxygen created by the absorption of light with compounds containing carbon and sulfur will be studied. Methods to control the indiscriminate nature of these reactions by using molecules chemically bonded to glass-like surfaces will be studied. This project may lead to a better understanding of the reactions of sulfur containing proteins and naturally occuring organic sulfur compounds when they are exposed to oxygen and sunlight.

在化学系有机动力学项目中，怀俄明大学的Edward L.Clennan将研究单线态氧与硫化物、二硫化物、亚硫胺和亚硫酸酯的反应。磺酸衍生物将通过烃系链共价键合到二氧化硅表面，并将研究它们的异相光氧化作用。目标是阐明反应机理，开发分析反应机理的新工具，发现新的氧化剂，开发新的合成方法。我们将研究光吸收产生的单线态氧与含碳和硫的化合物的反应。将研究通过使用化学结合到玻璃表面的分子来控制这些反应的不分青红皂白的性质的方法。该项目可能有助于更好地理解含硫蛋白质和自然生成的有机硫化合物在氧气和阳光下的反应。