A Structural and Thermodynamic Study of Lewis Interactions in Host-Guest Complexation Reactions

主客体络合反应中路易斯相互作用的结构和热力学研究

• 批准号: 9121920
• 负责人: Claude Yoder
• 金额: $ 4.05万
• 依托单位: Franklin and Marshall College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-06-01 至 1994-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9121920&HistoricalAwards=false
• 关键词: Structural; Thermodynamic; Study; Lewis; Interactions

This project, in the Experimental Physical Chemistry Program, will explore the thermodynamics of Lewis acid-base interactions of polyfunctional hosts with monofunctional guests. Interactions of both acidic and basic hosts will be examined. Solvent effects on reactions involving neutral reactants will be explored using a linear free energy relationship model developed by the principal investigators. The enthalpies and entropies determined for these systems will be compared with those of reactions of similar monofunctional hosts. Techniques to be utilized in these investigations are calorimetry and multinuclear NMR spectroscopy. %%% The Lewis acid-base model, in which an electron pair donor reacts with an electron pair acceptor, is one of the most useful in accounting for the regiochemistry of a wide variety of chemical reactions. Thermochemical data, such as that to be obtained in this work, have great predictive value for the behavior of related acids and bases.

在实验物理化学计划中，该项目将探讨多功能宿主与单功能客人的刘易斯酸碱相互作用的热力学。 将检查酸性和基本宿主的相互作用。 将使用主要研究者开发的线性自由能关系模型来探索涉及中性反应物的反应的溶剂作用。 将针对这些系统确定的焓和熵与相似的单功能宿主的反应进行比较。 在这些研究中要使用的技术是量热法和多核NMR光谱。 %%;刘易斯酸碱模型，其中电子对供体与电子对受体反应，是计算各种化学反应的区域化学的最有用的一种。 热化学数据（例如在这项工作中获得的）对相关酸和碱的行为具有很大的预测价值。