An Isotopic Probe into Bonding Changes due to Electron Addition

对电子加成引起的键合变化的同位素探测

• 批准号: 9011801
• 负责人: Cheryl Stevenson
• 金额: $ 10.5万
• 依托单位: Board of Trustees of Illinois State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-08-15 至 1994-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9011801&HistoricalAwards=false
• 关键词: Isotopic; Probe; into; Bonding; Changes

The Organic Dynamics Program will support Professor Gerald R. Stevenson's study of "An Isotopic Probe into Bonding Changes due to Electron Addition" in the Chemistry Department at Illinois State University. Thermodynamic isotope effects are being obtained in order to generate a new probe into the nature of aromaticity. Nuclear magnetic resonance spectroscopy, electron spin resonance spectroscopy, and calorimetric techniques are being used to measure the thermodynamic parameters controlling one and two electron transfer reactions from reduced annulene anion radicals or dianions to neutral annulenes and perdeuteriated neutral annulenes. The resulting thermodynamic isotope effects will be related to changes in the aromatic nature of annulenes upon one or two electron addition. These data will generate a new probe into the nature of aromaticity. The "probe" will be tried on other homoaromatic annulene systems.

有机动力学计划将支持教授杰拉尔德R。 史蒂文森对“成键变化的同位素探测”的研究 由于电子加成”在化学系， 伊利诺伊州立大学。 热力学同位素效应 为了产生一个新的探索性质 芳香性。 核磁共振波谱，电子自旋 共振光谱学和量热技术 用于测量控制一个 还原轮烯阴离子的两个电子转移反应 自由基或二价阴离子与中性轮烯和全氘化 中性轮烯 由此产生的热力学同位素效应 将与轮烯芳香性的变化有关 添加一个或两个电子。 这些数据将产生一个 对芳香性本质的新探讨。 “探测器”将在 在其他同芳香轮烯系统上进行了尝试。