A new laboratory astrochemistry technique is being developed to reveal information about the relationship between the gas and ice compositions of early star-forming regions and planetary/cometary atmospheres. The technique uses millimeter/submillimeter spectroscopy to detect thermal desorption and photodesorption products of laboratory ice analogs. Being that millimeter and submillimeter spectroscopy are the same techniques used for determining gas-phase compositions of the interstellar medium and planetary/cometary atmospheres, our laboratory spectra are directly comparable to remote observations from ground- and space-based telescopes. Furthermore, rotational spectroscopy is structure specific and is capable of distinguishing branching ratios of desorbed isomers (e.g. CH<sub>3</sub>O and CH<sub>2</sub>OH). This is something that typical laboratory ice studies that use mass spectrometry have always struggled with. The experimental design and new results of thermally and photo-processed ices will be discussed.

Millimeter/submillimeter spectroscopic analysis of desorbed interstellar and planetary/cometary ice analogs

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.