Photochemistry and Photophysics of Sulfoxides and Related Species

爱荷华州立大学化学系的威廉·S·詹克斯教授因研究亚硫醚及其相关物种的光化学和光物理，得到了有机动力学计划和数学和物理科学局多学科活动办公室的支持。通过实验和计算相结合的研究，Jenks教授的目标是表征烷基和芳基亚硫醚的光化学活性激发态及其动力学，确定亚砜在由于能量考虑而不可能进行能量转移的情况下猝灭传统三重态敏化剂的机制，以及确定其他分子可以猝灭亚砜激发态的机制，特别是电子转移反应的发展。通过对亚硫醚的各种光化学反应的研究，包括立体置换、α裂解和脱氧，将构建一个预测范式，以帮助分析亚硫醚的光化学性质，并开发和开发其光化学反应化学。艾奥瓦州立大学化学系的威廉·S·詹克斯教授在有机动力学项目和数学和物理科学委员会多学科活动办公室的支持下，研究了光与一类有机分子亚硫醚的相互作用，这种有机分子含有氧和硫之间的键。这类化合物由于其独特的化学性质和物理性质的结合，在有机化学中占有重要的地位。亚硫醚的热反应已经得到了很好的研究，并被用于制备各种重要的产物，但亚硫醚的光引发反应仍处于发现和发展阶段。通过应用各种实验和计算技术，詹克斯教授探索了亚硫醚与光相互作用的方式，这种相互作用产生的物种的结构和反应，以及这些反应可能产生的产物。这些研究有助于我们对光化学反应的基本理解，并可能导致开发有用的新策略来合成重要的有机分子。

Professor William S. Jenks, of the Department of Chemistry at Iowa State University, is supported by the Organic Dynamics Program and the Office of Multidisciplinary Activities of the Mathematical and Physical Sciences Directorate for his studies of the photochemistry and photophysics of sulfoxides and related species. Through a combination of experimental and calculational studies, Professor Jenks targets the characterization of the photochemically active excited states of alkyl and aryl sulfoxides and their dynamics, the determination of the mechanisms by which sulfoxides quench traditional triplet sensitizers in cases where energy transfer is unlikely due to energetic considerations, and the determination of mechanisms by which other molecules can quench sulfoxide excited states, with particular emphasis on development of electron transfer reactions. Through the study of a variety of photochemical reactions of sulfoxides, including stereomutation, alpha cleavage, and deoxygenation, a predictive paradigm will be constructed to assist in the analysis of photochemical properties of sulfoxides and the development and exploitation of their photochemical reaction chemistry. With the support of the Organic Dynamics Program and the Office of Multidisciplinary Activities of the Mathematical and Physical Sciences Directorate, Professor William S. Jenks, of the Department of Chemistry at Iowa State University, studies the interactions of light with a class of organic molecules known as sulfoxides, containing a bond between oxygen and sulfur. Such compounds occupy an important niche in organic chemistry due to their unique combination of chemical and physical properties. Whereas the thermal reactions of sulfoxides have been well-studied and have been exploited for the preparation of a variety of significant products, the light-initiated reactions of sulfoxides are still in the discovery and development stages. By applying a variety of experimental and calculational techniques, Professor Jenks explores the ways in which sulfoxides interact with light, the structures and reactions of the species generated by such interactions, and the products which may be obtained as a result of these reactions. These studies contribute to our fundamental understanding of photochemical reactions and may lead to the development of useful new strategies for the synthesis of important organic molecules.