Neutralization-Reionization Mass Spectrometry

这项资助是在分析和表面化学的一般领域，以及在质谱学的子领域。康奈尔大学的麦克拉弗蒂教授将继续他在中和再电离质谱仪(NRMS)方面的突破性工作。利用NRMS将制备不寻常的中性物种(双自由基、卡宾、叶立德、超价物种和簇合物)，并对这些分子的能面进行研究。激光光解和发光检测也将被用来研究这些不寻常的物种的光谱状态。结合光学、质谱学和能量释放等方法，探索这些具有特殊电子结构和分子结构的小分子的开环和裂解反应。同分异构体特有的碎裂机制的细节将是这项工作的一个特别重点。

This grant is in the general area of analytical and surface chemistry and in the subfield of mass spectrometry. Professor McLafferty of Cornell University will continue his breakthrough work on neutralization reionization mass spectrometry (NRMS). Using NRMS unusual neutral species (biradicals, carbenes, ylides, hypervalent species and clusters) will be prepared and the energy surfaces of these molecules will be studied. Laser photodissociation and luminescence detection will also be used to study the spectroscopic states of these unusual species. Combining optical, mass spectrometric and energy release methods, ring opening and pyrolysis reactions of these small molecules of unusual electronic and molecular structure will be probed. Details of fragmentation mechanisms specific to isomeric species will be a particular focus of this work.