Planetary Nitrile Chemistry: Synchrotron Spectroscopic Investigations

在行星大气中观察到，如土星的卫星土卫六，氰化物气溶胶经历光解过程，产生复杂的有机物质，对益生元感兴趣。然而，迄今为止，还没有针对腈气溶胶类似物进行专门的光谱实验。为了弥补这一差距，澳大利亚同步加速器上的一个定制冷却单元将用于研究泰坦条件下的冷凝相氮气。然后用激光照射腈冰粒子；旨在模拟土卫六大气中的光化学过程。该项目旨在利用收集的腈气溶胶及其光解产物的数据，在行星环境的红外调查中协助将这些物种分配到未经确认的波段。

Observed in planetary atmospheres such as Saturn's moon Titan, cyanide-based aerosols undergo photolytic processing to generate complex organic material of prebiotic interest. However, dedicated spectroscopic experiments directed at nitrile aerosol analogues have not been performed to date. To bridge this gap, a custom cooling cell at the Australian Synchrotron will be used to investigate condensed-phase nitriles at Titan conditions. Laser irradiation of nitrile ice particles will then follow; designed to simulate photochemical processes in the Titan atmosphere. The project aims to use data compiled for nitrile aerosols and their photolytic products to assist in assigning these species to unconfirmed bands within infrared surveys of planetary environments.