Spectroscopic Studies of Energetic Amine Systems

在这个项目中的物理化学计划的 化学部，吉尔伯特将研究光谱学 和各种含氮化合物的光化学， 例如高能卤胺、胺基自由基， 氮烯。 NX 2、NXY和NX物质将被困在低浓度下。 光谱和光化学温度矩阵 表征，而几个NX 3和 NX 2 Y物种将在气相中进行研究。 紫外线/ 可见吸收和激光诱导荧光光谱将 从基质分离种属中获得，以表征 它们的电子状态，以及帮助理解 气相胺的光解动力学及其 中间体的 %%% 含氮化合物的家族，称为卤素 胺是有趣的，因为这些化合物是众所周知的 在标准温度条件下不稳定， 压力 这种行为的原因尚不清楚， 但也观察到某些趋势，例如 从含氟化合物到 那些含有氯，溴，最后碘。 一个 了解卤胺中的这些问题可能有助于 阐明其他含氮化合物的化学性质 物种

In this project in the Physical Chemistry Program of the Chemistry Division, Gilbert will investigate the spectroscopy and photochemistry of various nitrogen-containing compounds, such as energetic halogen amines, aminyl radicals, and nitrenes. NX2, NXY, and NX species will be trapped in low temperature matrices for spectroscopic and photochemical characterization, while the photochemistry of several NX3 and NX2Y species will be studied in the gas phase. Ultraviolet/ visible absorption and laser-induced fluorescence spectra will be obtained from the matrix-isolated species to characterize their electronic states as well as to aid in understanding the photodissociation dynamics of the gas-phase amines and their intermediates. %%% The family of nitrogen-containing compounds known as halogen amines is interesting because these compounds are notoriously unstable under standard conditions of temperature and pressure. The reasons for this behavior are not understood, but certain trends are observed, such as increasing instability in going from compounds containing fluorine to those containing chlorine, bromine, and finally iodine. An understanding of these issues in the halogen amines may aid in elucidating the chemical nature of other nitrogen-bearing species.