Mechanistic and Exploratory Organic Photochemistry

机理和探索性有机光化学

• 批准号: 9300937
• 负责人: Howard Zimmerman
• 金额: $ 55万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-03-15 至 1996-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9300937&HistoricalAwards=false
• 关键词: Mechanistic; Exploratory; Organic; Photochemistry

The following research projects will be pursued: (1) Continued general exploration for examples where unimolecular photochemistry in the unit cell of a crystal differs from that in solution, (2) The search for more examples where two crystalline modifications with different space groups differ in reactivity, (3) "Crystal Engineering" by use of patterned surfaces to effect nucleation of different space group crystals, (4) Development of quantitative methods correlating crystal reactivity with prediction, (5) "Spiderweb Photochemistry" of molecules entrapped in cross-linked polymers, (6) The design of product-shaped cavities leading reactants to desired products (i.e., synthetic enzymes), (7) A study of chiral quenchers of achiral excited state reactants, (8) Development of a molecular clock to determine triplet rates, (9) Theoretical treatments of organic reactions, and (10) Development of new photochemical concepts. %%% This grant from the Organic Dynamics Program supports the continuing work of Professor Howard E. Zimmerman at the University of Wisconsin. Molecules will be excited with light to produce excited states where the resulting reactions will be studied in detail. Included in this study will be: (1) experiments to uncover new photochemical reactions, (2) new ways to control excited state reactivity, (3) the development of new techniques in photochemistry. Some of the projects will envolve the use of crystal and polymer cavities to tailor photochemical reactions, the use of specially designed molecules to time excited state processes, and the theoretical treatment of reactions of organic molecules.

将开展以下研究项目：（1）继续 对单分子光化学 在晶体的晶胞中不同于在溶液中，（2） 寻找更多的例子， 不同空间群的反应活性不同，（3）“晶体 通过使用图案化的表面来实现 不同空间群晶体;（4）定量分析 将晶体反应性与预测相关联的方法，（5） “蜘蛛网光化学”的分子截留在交联 （6）产品型腔的设计 将反应物转化为所需产物（即，合成酶），（7）A 非手性激发态反应物手性猝灭剂的研究（8） 开发分子钟以确定三重态速率，（9） 有机反应的理论处理和（10）发展 新的光化学概念。 %%% 有机动力学计划的这笔赠款支持 继续研究霍华德教授E.大学里的齐默尔曼 来自威斯康星州。分子会被光激发， 激发态，其中产生的反应将在 详细本研究将包括：（1）实验，以揭示 新的光化学反应，（2）控制激发态的新方法 反应性，（3）新技术的发展， 光化学其中一些项目将涉及使用 晶体和聚合物腔来定制光化学反应， 使用特殊设计的分子来计时激发态 过程，以及有机反应的理论处理 分子。