Propyne: Determination of Physical Properties and Unit Cell Parameters under Titan-Relevant Conditions
Abstract
With its large size, dense atmosphere, methane-based hydrological-like cycle, and diverse surface features, the Saturnian moon Titan is one of the most unique of the outer Solar System satellites. Study of the photochemically produced molecules in Titan’s atmosphere is critical in order to understand the mechanics of the atmosphere and, by extension, the interactions between atmosphere, surface, and subsurface water ocean. One example is propyne vapor, a photochemically produced species in Titan’s upper atmosphere expected to condense in Titan’s stratosphere at lower altitudes. Propyne may also be a trace species in Titan’s stratospheric co-condensed ice clouds detected by the Cassini Composite InfraRed Spectrometer. Bulk structural characterization of propyne ice is currently incomplete and is lacking in published laboratory Raman spectra and X-ray diffraction data. Here, we present a laboratory characterization of propyne ice, including the first published X-ray diffraction and Raman spectroscopy results for propyne ice.
Copyright and License
© 2024 California Institute of Technology. Published by American Chemical Society. This publication is licensed under CC-BY-NC-ND 4.0.
Acknowledgement
This work was conducted at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (80NM0018D0004). Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement by the United States Government or the Jet Propulsion Laboratory, California Institute of Technology. T.C.M. was funded by NSF GRFP. All other authors were funded by a Cassini Data Analysis Program grant. This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science user facility operated for the DOE Office of Science by Argonne National Laboratory under Contract no. DE-AC02-06CH11357. © 2023. All rights reserved.
Funding
T.C.M. was funded by NSF GRFP. All other authors were funded by a Cassini Data Analysis Program grant.
Contributions
The manuscript was written through contributions of all authors. All authors have approved the final version of the manuscript.
Data Availability
-
Additional temperature series data figures; Raman spectroscopy; and infrared spectroscopy (PDF)
Conflict of Interest
The authors declare no competing financial interest.
Files
Name | Size | Download all |
---|---|---|
md5:a7b21debf44032c82d63c7c68417bf76
|
2.9 MB | Preview Download |
md5:8f88cef039d759a495ef275a66feba74
|
614.3 kB | Preview Download |
Additional details
- ISSN
- 2472-3452
- NSF Graduate Research Fellowship
- National Science Foundation
- 80NM0018D0004
- National Aeronautics and Space Administration
- DE-AC02-06CH11357
- United States Department of Energy