Chemically Induced Spin Polarization Mechanisms and ElectronDonor-Acceptor Chemistry

化学诱导自旋极化机制和电子供体-受体化学

• 批准号: 9522007
• 负责人: Malcolm Forbes
• 金额: $ 40.56万
• 依托单位: University of North Carolina at Chapel Hill
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-08-15 至 1999-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9522007&HistoricalAwards=false
• 关键词: Chemically; Induced; Spin; Polarization; Mechanisms

With funding from the Organic Dynamics Program, Professor Forbes will investigate the dynamic phenomena associated with flexible biradicals. He will study the mechanisms of exchange interactions which include vacuum, sigma bonds, solvent and excluded volume. Further, the principal investigator will investigate the theory for spin physics of correlated polyradicals. Finally, he will elaborate the dynamic effects such as lifetime broadening and J-modulation. Degradation of organic compounds which are an integral part of consumer products often occurs by means of free radicals. This is particularly true for products that are exposed to light (i.e., polymeric materials for containers and wrapping materials). This investigation addresses how this reaction occurs and what are the factors which influence the course of the reaction. Thus an understanding will facilitate how degradation by light can either be prevented or accelerated. Finally, the results of the study will be valuable to physicists and organic chemists.

在有机动力学项目的资助下，福布斯教授将 研究与柔性双自由基相关的动力学现象。他 将研究交换相互作用的机制，包括真空， σ键、溶剂和排除体积。此外，校长 研究人员将研究相关的自旋物理理论 多自由基最后，他将阐述动态效果，如 寿命展宽和J调制。 降解有机化合物，这是消费者的一个组成部分， 产物通常通过自由基发生。这是特别 对于暴露于光的产品是真实的（即，聚合物材料 用于容器和包装材料）。这项调查涉及如何 发生这种反应，影响反应过程的因素是什么？ 的反应。因此，了解如何通过 光可以被阻止或加速。最后， 研究将对物理学家和有机化学家有价值。