Amino-Carboxy Type Captodative Radicals

氨基-羧基型捕获自由基

• 批准号: 9201075
• 负责人: Tad Koch
• 金额: $ 25.4万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-04-15 至 1996-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9201075&HistoricalAwards=false
• 关键词: Amino; Carboxy; Type; Captodative; Radicals

An investigation of the chemical and physical consequences of captodative radical stabilization will be conducted for a series of 2-oxomorpholinyl-3-yl radical species. The extent of radical stabilization by captodative effects will be determined by photoacoustic calorimetry and photovoltammetry. In addition to the characterization of the reductive properties of captodative radicals, their ultimate use as centers for high spin polymers will be assessed by synthesis of amide coupled oligomers and polymers. Dihydropyrazines derived from the oxomorpholine structures will be employed to make conductive CT complexes with a variety of strong electron acceptors. %%% This grant from the Organic Dynamics Program suppports the continuing investigation by Professor T. A. Koch at the University of Colorado. A study of radical species stabilized in a unique manner by groups attached to the molecule which are able to push and pull electrons by virtue of the electronic nature will be conducted. A particular interesting part of the research will focus on the ability of specially designed molecules of this variety to form complexes with electron acceptor compounds which are capable of conducting electricity. In addition, it is proposed to utilize these radical species in polymers to generate materials which have unique magnetic properties. Such materials have potential applications in fabrication of electrical devices.

将对一系列 2-氧代吗啉基-3-基自由基物种进行捕获自由基稳定化的化学和物理后果的研究。通过捕获效应实现自由基稳定的程度将通过光声量热法和光伏安法来确定。 除了表征捕获自由基的还原性质外，还将通过酰胺偶联低聚物和聚合物的合成来评估它们作为高自旋聚合物中心的最终用途。衍生自氧代吗啉结构的二氢吡嗪将用于制备具有多种强电子受体的导电CT配合物。 %%% 有机动力学计划的这笔拨款支持科罗拉多大学 T. A. Koch 教授的持续研究。将研究通过附着在分子上的基团以独特的方式稳定的自由基物质，这些基团能够凭借电子性质推拉电子。该研究的一个特别有趣的部分将集中于专门设计的此类分子与能够导电的电子受体化合物形成复合物的能力。 此外，还建议利用聚合物中的这些自由基物质来生成具有独特磁性的材料。此类材料在电气设备的制造中具有潜在的应用。