Diode Laser Spectroscopy of Ammonia-Containing van der Waals Complexes: Models for Hydrogen Bonding

在这个由化学系资助的实验物理化学项目中，马歇尔教授(阿默斯特学院)将使用红外光谱来确定在脉冲超音速喷射中制备的氢键氨络合物的结构。这些研究的最终目标是完整地描述与生物系统中模拟氢键的伙伴结合的势能面。喷注的功能是提供简单的二聚体，适合于获得旋转分辨的振动光谱。%氢键渗透在化学中，与水作为溶剂的特殊作用以及蛋白质和核酸的稳定性、结构和功能等各种现象有关。然而，与氢键相关的基本势能还没有完全被理解。马歇尔教授(阿默斯特学院)将通过使用激光探测气相中简单氢键络合物的结构来加深我们对氢键的理解。

In this Experimental Physical Chemistry Project, funded by the Chemistry Division, Prof. Marshall (Amherst College) will use infrared spectroscopy to determine the structure of hydrogen bonded ammonia complexes prepared in a pulsed supersonic jet. The ultimate goal of these studies is a complete characterization of the potential energy surface for binding with partners that mimic hydrogen bonding in biological systems. The function of the jet is to provide simple dimers, suitable for obtaining rotationally resolved vibrational spectra. %%% Hydrogen bonding pervades chemistry, and is responsible for such diverse phenomena as the special role of water as a solvent and the stability, structure and function of proteins and nucleic acids. Yet, the fundamental potential energy associated with hydrogen bonding is not fully understood. Prof. Marshall (Amherst College) will add to our understanding of hydrogen bonding by using lasers to probe the structure of simple hydrogen bonded complexes in the gas phase.