High temperatures and associated poor rotational partition functions have hindered the application of high-resolution rotational spectroscopy for detection of molecules desorbing from an ice substrate. Here, an experimental approach is presented which will enable such investigations through incorporation of a buffer gas cooling cell. We discuss design considerations for this apparatus and the expected performance based upon OC³⁴S measurements made with a related spectrometer in a 14.7 K sampled uniform flow. We highlight specific applications of this technique including chiral sensing of molecules generated in an interstellar ice, and the synthesis of exotic species not amenable to generation in the gas-phase.

高温和相关的较差的旋转分配功能阻碍了高分辨率旋转光谱学在检测从冰底物中解吸的分子方面的应用。在这里，提出了一种实验方法，通过并入缓冲气体冷却室可以进行此类研究。我们讨论了该设备的设计考虑因素以及基于相关光谱仪在14.7 K采样均匀流中进行的OC ³⁴ S测量得出的预期性能。我们重点介绍了该技术的具体应用，包括对星际冰中生成的分子进行手性传感，以及合成不适合在气相中生成的外来物种。