Solution and Gas-Phase Photochemistry Involving Multiple and Delocalized Excited States

涉及多个离域激发态的溶液和气相光化学

• 批准号: 9530650
• 负责人: Harry Morrison
• 金额: $ 32.7万
• 依托单位: Purdue Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-01-15 至 1999-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9530650&HistoricalAwards=false
• 关键词: Solution; Gas; Phase; Photochemistry; Involving

Professor Harry Morrison of Purdue University will conduct a project with funding from the Organic Dynamics Program of the Chemistry Division emphasizing the study of the limitations and consequences of movement of electronic energy through `photonic wires.` These are assemblies of chromophores pendant on or incorporated into a passive framework, and in particular in the present case the passive framework is the steroid ring system. The transfer of electronic excitation absorbed by `antenna` chromophores to distal, formally unconjugated, groups may produce chemistry or quenching, depending on the groups, and Professor Morrison will be determining the ground rules for each. The study will be complemented by parallel theoretical and experimental studies intended to determine the role of through space mixing of orbitals in determining such ground rules. These studies will be accomplished in part by cooperative studies with senior collaborators at other institutions. An added effort will be made to understand the role of the second excited singlet state in indene photochemistry. The use of light in information transmission, storage, and retrieval is changing modern society. This project will generate basic results pertinent to the ability to use light in modulation of information transmission on the scale of an organic molecule. It will also support experimental results with theoretical calculations which allow a generalized picture to be developed.

普渡大学的哈里莫里森教授将进行一个项目， 化学部有机动力学项目资助 强调研究运动的局限性和后果， 电子能量通过“光子线”。 这些是 - 悬挂在被动框架上或并入被动框架中的发色团，并且 特别是在本发明的情况下，被动框架是类固醇环， 系统 被“天线”吸收的电子激发的传递 发色团到远端，形式上未共轭的基团可以产生 化学或淬火，取决于组，和莫里森教授 将决定每一项的基本规则。 本研究将 辅以平行的理论和实验研究， 确定通过空间混合轨道的作用， 这样的基本规则。 这些研究将部分通过以下方式完成： 与其他机构的高级合作者进行合作研究。 一个 将进一步努力了解第二个兴奋的作用， 茚光化学中单线态 光在信息传输、存储和检索中的应用 改变着现代社会。 该项目将产生基本成果 与利用光调制信息的能力有关 在有机分子的尺度上传输。它还将支持 实验结果与理论计算，允许 要发展的总体规划。