DETECTION OF E-CYANOMETHANIMINE TOWARD SAGITTARIUS B2(N) IN THE GREEN BANK TELESCOPE PRIMOS SURVEY
Open accessAbstract
The detection of E-cyanomethanimine (E-HNCHCN) toward Sagittarius B2(N) is made by comparing the publicly available Green Bank Telescope (GBT) PRIMOS survey spectra to laboratory rotational spectra from a reaction product screening experiment.The experiment uses broadband molecular rotational spectroscopy to monitor the reaction products produced in an electric discharge source using a gas mixture of NH 3 and CH 3 CN.Several transition frequency coincidences between the reaction product screening spectra and previously unassigned interstellar rotational transitions in the PRIMOS survey have been assigned to E-cyanomethanimine.A total of eight molecular rotational transitions of this molecule between 9 and 50 GHz are observed with the GBT.E-cyanomethanimine, often called the HCN dimer, is an important molecule in prebiotic chemistry because it is a chemical intermediate in proposed synthetic routes of adenine, one of the two purine nucleobases found in DNA and RNA.New analyses of the rotational spectra of both E-cyanomethanimine and Z-cyanomethanimine that incorporate previous millimeterwave measurements are also reported.
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Dimeric forms of HCN (cyanomethanimine) have been detected in the interstellar medium.
“For example, hydrogen cyanide (HCN) oligomers may have played a significant role in the synthesis of a wide range of prebiotic molecules [122-126], and recently, dimeric forms of HCN (cyanomethanimine) [127] have been detected in the interstellar medium.”
From The future of quantum biology (2018) · cites this paper as [127]
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Marais, A., Adams, B., Ringsmuth, A. K., Ferretti, M., Gruber, J. M., Hendrikx, R., Schuld, M., Smith, S. L., Sinayskiy, I., Krüger, T. P. J., et al. (2018) · Journal of The Royal Society Interface · doi:10.1098/rsif.2018.0640 · Cited by 274 · see citing works
- Authors
- Zaleski, D. P., Seifert, N. A., Steber, A. L., Muckle, M. T., Loomis, R. A., Corby, J. F., Martinez, O., Crabtree, K. N., Jewell, P. R., Hollis, J. M., Lovas, F. J., Vasquez, D., Nyiramahirwe, J., Sciortino, N., Johnson, K., McCarthy, M. C., Remijan, A. J., & Pate, B. H.
- Affiliations
- University of Virginia (US)
- Harvard University (US)
- National Radio Astronomy Observatory (US)
- Goddard Space Flight Center (US)
- National Institute of Standards and Technology (US)
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2013-02-13
- Volume
- 765
- Issue
- 1
- Pages
- L10
- ISSN
- 2041-8205 (ISSN-L)
- 2041-8213
- OpenAlex
- W2046832673
- Cited by
- 133
- References
- 31
- Citations by year
- 2026: 5 · 2025: 13 · 2024: 8 · 2023: 10 · 2022: 6 · 2021: 9 · 2020: 18 · 2019: 9 · 2018: 11 · 2017: 5 · 2016: 10 · 2015: 11 · 2014: 13 · 2013: 4
- FWCI
- 6.71
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- The Astrophysical Journal Letters (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysics and Star Formation Studies
- Physical Sciences › Chemistry › Spectroscopy › Molecular Spectroscopy and Structure
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Space Science and Extraterrestrial Life
- Keywords
- Sagittarius B2(N), interstellar molecules, rotational spectrum, prebiotic chemistry, adenine synthesis, millimeter-wave spectroscopy
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