Mechanistic and Exploratory Organic Photochemistry

机理和探索性有机光化学

基本信息

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

项目摘要

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.

将进行以下研究项目：（1）继续对晶体晶胞中的单分子光化学与溶液中的单分子光化学不同的例子进行一般性探索，（2）寻找具有不同空间群的两种晶体修饰不同的更多例子反应性，(3) 通过使用图案化表面来影响不同空间群晶体的成核的“晶体工程”，(4) 开发将晶体反应性与预测相关联的定量方法，(5) 分子的“蜘蛛网光化学”包埋在交联聚合物中，(6) 产品形状空腔的设计，使反应物产生所需的产物（即合成酶），(7) 非手性激发态反应物的手性猝灭剂的研究，(8) 分子的开发确定三重态速率的时钟，（9）有机反应的理论处理，以及（10）新光化学概念的发展。 %%% 有机动力学计划的这笔赠款支持威斯康星大学 Howard E. Zimmerman 教授的持续工作。分子将被光激发以产生激发态，由此产生的反应将被详细研究。这项研究包括：（1）发现新光化学反应的实验，（2）控制激发态反应性的新方法，（3）光化学新技术的开发。其中一些项目将涉及使用晶体和聚合物空腔来定制光化学反应、使用专门设计的分子来计时激发态过程以及有机分子反应的理论处理。