Planetary Nitrile Chemistry: Synchrotron Spectroscopic Investigations

行星腈化学：同步加速器光谱研究

• 批准号: DE150100301
• 负责人: Dr Courtney Ennis
• 金额: $ 23.08万
• 依托单位: La Trobe University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Early Career Researcher Award
• 财政年份: 2015
• 资助国家: 澳大利亚
• 起止时间: 2015-06-30 至 2018-06-30
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DE150100301
• 关键词: Planetary; Nitrile; Chemistry; Synchrotron; Spectroscopic

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.

在土星的卫星土卫六等行星大气中观察到，氰化物基气溶胶经过光解处理，产生复杂的生物前感兴趣的有机物质。然而，针对腈气溶胶类似物的专用光谱实验迄今尚未进行。为了弥补这一差距，澳大利亚同步加速器的一个定制冷却单元将用于研究泰坦条件下的凝相腈。随后将对腈冰粒子进行激光照射，旨在模拟土卫六大气中的光化学过程。该项目旨在利用为腈气溶胶及其光解产物汇编的数据，协助在行星环境的红外线调查中将这些物质分配到未经证实的波段。