SIFT-Drift Studies of Gas Phase Ion-Molecule Reactions

研究了各种物质在 将进行气相反应。反应速率和产物 分布将作为结构的函数进行分析， 活性物质的电子性质。拟议 工作将包括研究自由基之间的反应， 阳离子、阳离子碎裂过程， 协调或非协调的路径，以及涉及 双键磷利用燃烧的余辉 技术，研究中的反应动力学 将通过将反应性物质注入流动的 瞬时气相分子流，其本身具有 通过使用四极质量过滤器进行选择。在 除了产生关于 气相反应，调查将有助于 提供了对自然发生的过程的深入了解， 气氛 %%% 这笔赠款将为继续研究提供资金， C.气相反应H. DePuy和Dr. V. M.比尔鲍姆 在博尔德的科罗拉多大学。调查正在 旨在产生关于反应过程的关键数据 这是许多重要化学物质的基础， 流程.除了发电率和产品 分布数据，化学家可以利用这些数据来预测 新的化学反应的发生，这项研究 也将对我们的总体 了解地球上发生的反应 氛围：这应该为发展提供方向 化学过程的完整性， 营造良好的氛围，确保优质的环境。

An investigation of the reactions of a variety of species in the gas phase will be conducted. Reaction rates and product distributions will be analyzed as a function of structure and electronic properties of the reactive species. The proposed work will include studies of reactions between radicals and cations, cation fragmentation processes which proceed by either concerted or non-concerted paths, and processes involving doubly bonded phosphorous. By use of flaming afterglow techniques, the kinetics of the reactions under investigation will be determined by injecting reactive species into flowing streams of transient gas phase molecules which themselves have been selected via the use of a quadrupole mass filter. In addition to yielding critical thermodynamic information about gas phase reactions, the investigation will be instrumental in providing insight into naturally occuring processes in the atmosphere. %%% This grant will provide funding for the continuing studies of gas phase reactions by Dr. C. H. DePuy and Dr. V. M. Bierbaum at the University of Colorado at Boulder. The investigation is designed to yield critical data concerning reactive processes which are fundamental to a large number of important chemical processes. In additional to generating rate and product distribution data, which can be utilized by chemists to predict the occurence of new chemical reactions, this investigation will also have a significant impact upon our general understanding of reactions which take place in the earth's atmosphere: this should provide direction for the development of chemical processes for maintaining the integrity of the atmosphere and insuring a quality environment.