A chirped pulse microwave spectrometer for studying atmospheric chemistry

用于研究大气化学的啁啾脉冲微波光谱仪

• 批准号: DE180101194
• 负责人: Dr Christopher Medcraft
• 金额: $ 24.74万
• 依托单位: The University of New South Wales
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Early Career Researcher Award
• 财政年份: 2018
• 资助国家: 澳大利亚
• 起止时间: 2018-12-01 至 2022-06-02
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DE180101194
• 关键词: chirped; pulse; microwave; spectrometer; studying

This project aims to construct a microwave spectrometer with a unique molecular source to study atmospheric chemistry. Criegee intermediates formed by the ozonolysis of terpenes are key species in atmospheric chemical processes. Only very recently have small Criegee intermediates been detected by various spectroscopic methods. In this project a purpose-built chirped, pulsed Fourier transform microwave spectrometer will be coupled with a specialised molecular source that will enable their direct observation and characterisation by rotational spectroscopy. This will allow the structure of these molecules to be determined, which will provide insights into their reaction mechanisms.

本计画旨在建构一具独特分子源之微波光谱仪，以研究大气化学。臭氧分解萜烯形成的Criegee中间体是大气化学过程中的关键物种。直到最近，小的Criegee中间体才被各种光谱方法检测到。在这个项目中，一个专门建造的啁啾脉冲傅里叶变换微波光谱仪将与一个专门的分子源相结合，这将使它们能够通过旋转光谱进行直接观察和表征。 这将允许确定这些分子的结构，这将提供对其反应机制的见解。