The missing conformer: A comprehensive rotational spectroscopy study and astronomical search of two conformers of methyl cyanoacetate Article Swipe
Gayatri Batra
,
Pablo Pinacho
,
Amanda L. Steber
,
V. M. Rivilla
,
J. Martín‐Pintado
,
I. Jiménez-Serra
,
Melanie Schnell
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3389/fspas.2022.977488
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3389/fspas.2022.977488
We performed a comprehensive investigation of methyl cyanoacetate (MCA) using high-resolution Fourier transform rotational spectroscopy. Two low energy conformers of MCA were observed in the vibrational ground state, in selected frequency regions from 2 to 110 GHz. We report accurately determined line lists, rotational constants, centrifugal distortion constants, and nuclear quadrupole coupling constants for both conformers, as well as for several singly substituted heavy-atom isotopologues. One of the conformers was previously reported; however, the rotational transitions of the second conformer, which is newly described here, are observed to be generally more intense than the latter. The accurate predictions of rotational transitions into the millimeter-wave region can facilitate the detection of these conformers of MCA in the interstellar medium. Using the rotational spectroscopy data provided here, we searched for the two conformers of MCA in a deep and unbiased spectral survey of the molecular cloud G+0.693-0.027 located in the Galactic Center. None of the MCA conformers were detected. The upper limits for their abundances were derived with respect to the abundance of molecular hydrogen.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3389/fspas.2022.977488
- https://www.frontiersin.org/articles/10.3389/fspas.2022.977488/pdf
- OA Status
- gold
- Cited By
- 4
- References
- 50
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4306178602
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- OpenAlex ID
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https://openalex.org/W4306178602Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3389/fspas.2022.977488Digital Object Identifier
- Title
-
The missing conformer: A comprehensive rotational spectroscopy study and astronomical search of two conformers of methyl cyanoacetateWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2022Year of publication
- Publication date
-
2022-10-14Full publication date if available
- Authors
-
Gayatri Batra, Pablo Pinacho, Amanda L. Steber, V. M. Rivilla, J. Martín‐Pintado, I. Jiménez-Serra, Melanie SchnellList of authors in order
- Landing page
-
https://doi.org/10.3389/fspas.2022.977488Publisher landing page
- PDF URL
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https://www.frontiersin.org/articles/10.3389/fspas.2022.977488/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://www.frontiersin.org/articles/10.3389/fspas.2022.977488/pdfDirect OA link when available
- Concepts
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Conformational isomerism, Isotopologue, Rotational spectroscopy, Spectroscopy, Physics, Rotational–vibrational spectroscopy, Quadrupole, Nuclear magnetic resonance, Spectral line, Molecular physics, Astrophysics, Atomic physics, Molecule, Astronomy, Quantum mechanicsTop concepts (fields/topics) attached by OpenAlex
- Cited by
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4Total citation count in OpenAlex
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2025: 1, 2024: 1, 2023: 1, 2022: 1Per-year citation counts (last 5 years)
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50Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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