Amorphous 1-propanol interstellar ice beyond its melting point Article Swipe
R. Ramachandran
,
Anupam Hazarika
,
S. K. Gupta
,
Shubhadeep Nag
,
J. K. Meka
,
Tejender S. Thakur
,
S. Yashonath
,
Gayatri Vishwakarma
,
Sheng‐Lung Chou
,
Y -J Wu
,
P. Janardhan
,
B.N. Rajasekhar
,
Anil Bhardwaj
,
N. J. Mason
,
Bhalamurugan Sivaraman
,
Prabal K. Maiti
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1093/mnras/stae759
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1093/mnras/stae759
The recent discovery of 1-propanol (CH3CH2CH2OH) in the interstellar medium (ISM) is of tremendous interest since fatty alcohols have been proposed as constituents of proto-cell membranes. Motivated by this discovery, we present the laboratory mid-infrared (MIR) and vacuum ultraviolet (VUV) absorption spectra of 1-propanol ice under astrochemical conditions, mimicking an icy mantle on cold dust in the ISM. Both MIR and VUV spectra were recorded at ultrahigh vacuum of ∼10-9 mbar and at temperatures ranging from 10 K to sublimation. The morphology of the 1-propanol ice deposited at 10 K was amorphous. By warming the ice to temperatures of 140 K and above, with subsequent recording of IR spectra, we observe complete sublimation of 1-propanol molecules from the substrate around 170 K. No amorphous-to-crystalline phase change was observed upon warming to higher temperatures. Additionally, we observe the IR and VUV signatures of 1-propanol ice on the substrate well beyond its melting point (147 K). To the best of our knowledge, this is the first reported observation of a molecular ice staying well beyond its melting point under such conditions. This result shows that the morphology of icy mantles on ISM cold dust grains is more complex than previously thought. Our atomistic molecular dynamics simulations capture the experimental trends and shed light on the microscopic origin of this unusual phase behaviour of 1-propanol.
Related Topics
Concepts
Physics
Amorphous solid
Astrophysics
Astrobiology
Melting point
Interstellar ice
Amorphous ice
Interstellar cloud
Astronomy
Interstellar medium
Astrochemistry
Galaxy
Crystallography
Quantum mechanics
Chemistry
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1093/mnras/stae759
- https://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stae759/56991929/stae759.pdf
- OA Status
- gold
- Cited By
- 4
- References
- 43
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4392885972
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4392885972Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1093/mnras/stae759Digital Object Identifier
- Title
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Amorphous 1-propanol interstellar ice beyond its melting pointWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
-
2024Year of publication
- Publication date
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2024-03-15Full publication date if available
- Authors
-
R. Ramachandran, Anupam Hazarika, S. K. Gupta, Shubhadeep Nag, J. K. Meka, Tejender S. Thakur, S. Yashonath, Gayatri Vishwakarma, Sheng‐Lung Chou, Y -J Wu, P. Janardhan, B.N. Rajasekhar, Anil Bhardwaj, N. J. Mason, Bhalamurugan Sivaraman, Prabal K. MaitiList of authors in order
- Landing page
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https://doi.org/10.1093/mnras/stae759Publisher landing page
- PDF URL
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https://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stae759/56991929/stae759.pdfDirect link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
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https://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stae759/56991929/stae759.pdfDirect OA link when available
- Concepts
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Physics, Amorphous solid, Astrophysics, Astrobiology, Melting point, Interstellar ice, Amorphous ice, Interstellar cloud, Astronomy, Interstellar medium, Astrochemistry, Galaxy, Crystallography, Quantum mechanics, ChemistryTop concepts (fields/topics) attached by OpenAlex
- Cited by
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4Total citation count in OpenAlex
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2025: 3, 2024: 1Per-year citation counts (last 5 years)
- References (count)
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43Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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| abstract_inverted_index.tremendous | 14 |
| abstract_inverted_index.1-propanol. | 222 |
| abstract_inverted_index.conditions, | 48 |
| abstract_inverted_index.conditions. | 179 |
| abstract_inverted_index.microscopic | 214 |
| abstract_inverted_index.observation | 166 |
| abstract_inverted_index.simulations | 204 |
| abstract_inverted_index.sublimation | 113 |
| abstract_inverted_index.ultraviolet | 39 |
| abstract_inverted_index.constituents | 23 |
| abstract_inverted_index.experimental | 207 |
| abstract_inverted_index.interstellar | 9 |
| abstract_inverted_index.mid-infrared | 35 |
| abstract_inverted_index.sublimation. | 80 |
| abstract_inverted_index.temperatures | 74, 98 |
| abstract_inverted_index.(CH3CH2CH2OH) | 6 |
| abstract_inverted_index.Additionally, | 134 |
| abstract_inverted_index.astrochemical | 47 |
| abstract_inverted_index.temperatures. | 133 |
| abstract_inverted_index.amorphous-to-crystalline | 124 |
| cited_by_percentile_year.max | 98 |
| cited_by_percentile_year.min | 90 |
| countries_distinct_count | 3 |
| institutions_distinct_count | 16 |
| sustainable_development_goals[0].id | https://metadata.un.org/sdg/14 |
| sustainable_development_goals[0].score | 0.7400000095367432 |
| sustainable_development_goals[0].display_name | Life below water |
| citation_normalized_percentile.value | 0.83895989 |
| citation_normalized_percentile.is_in_top_1_percent | False |
| citation_normalized_percentile.is_in_top_10_percent | False |