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James, Rachel L.; Ioppolo, Sergio; Hoffmann, Søren V.; Jones, Nykola C.; Mason, Nigel J. and Dawes, Anita
(2020).
DOI: https://doi.org/10.1039/D0RA05826B
Abstract
The adjustment of experimental parameters in interstellar ice analogues can have profound effects on molecular synthesis within an ice system. We demonstrated this by systematically investigating the stoichiometric mixing ratios of CO2 : NH3 ices as a function of thermal processing using mid-IR and VUV spectroscopy. We observed that the type of CO2 bonding environment was dependent on the different stoichiometric mixing ratios and that this pre-determined the NH3 crystallite structure after phase change. The thermal reactivity of the ices was linked to the different chemical and physical properties of the stoichiometric ratios. Our results provide new details into the chemical and physical properties of the different stoichiometric CO2 : NH3 ices enhancing our understanding of the thermally induced molecular synthesis within this ice system.
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About
- Item ORO ID
- 73237
- Item Type
- Journal Item
- ISSN
- 2046-2069
- Academic Unit or School
-
Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM) - Research Group
-
Astronomy
Physics - Copyright Holders
- © 2020 The Royal Society of Chemistry
- Depositing User
- Anita Dawes