State Resolved Collision Dynamics of Highly Vibrationally Excited Polyatomics

在这个化学分部的少数派研究启动项目中，休斯顿大学的Edwin Carrasquillo M.将研究包含化学上大量振动能量的多原子分子的量子态分辨碰撞动力学。使用单光子泛音振动制备特定量子态分子的直接激发，以及激光诱导荧光作为光谱探针的组合，可以监测热分子的时间演变。将研究各种含氢分子，如HCN， DCN， HCP和丙基，以提取弛豫机制并确定一般趋势。研究涉及非常高振动水平的能量传递对于理解包括反应在内的许多化学过程是很重要的。了解反应物的内能如何影响反应路径，或者当产物与周围环境平衡时，多余的内能是如何重新分配的，有助于控制化学反应的过程。该项目旨在研究单个化学键振动中存在的大量但非常精确确定的能量的分子行为。

In this Minority Research Initiation project in the Chemistry Division, Edwin Carrasquillo M. of the University of Houston will study quantum state-resolved collision dynamics involving polyatomic molecules which contain chemically significant amounts of vibrational energy. The combination of direct excitation using a single-photon overtone vibration to prepare a molecule in a specific quantum state, together with laser-induced fluorescence as a spectroscopic probe, allows the temporal evolution of a hot molecule to be monitored. Various hydrogen-containing molecules, such as HCN, DCN, HCP, and propynal, will be studied in order to extract relaxation mechanisms and identify general trends. %%% Studies of energy transfer involving very high vibrational levels are important for understanding many chemical processes, including reactions. Knowing how the internal energy of a reactant affects the reaction path or how the excess internal energy of a product is redistributed as it equilibrates with its surroundings can help in efforts to control the course of a chemical reaction. This project aims at examining the behavior of molecules with large but very precisely determined amounts of energy present in the vibrations of individual chemical bonds.