Institutional Repository of Radio Astronomy Research Laboratory
| Propionamide (C2H5CONH2): The Largest Peptide-like Molecule in Space | |
Li,Juan1,2; Wang,Junzhi1,2; Lu,Xing3; Ilyushin,Vadim4,5; Motiyenko,Roman A.6; Gou,Qian7; Alekseev,Eugene A.4,5; Quan,Donghui8,9 ; Margulès,Laurent6; Gao,Feng10,11; Lovas,Frank J.12,13; Wu,Yajun1,2; Bergin,Edwin14; Li,Shanghuo15; Shen,Zhiqiang1,2; Du,Fujun16,17; Li,Meng7; Zheng,Siqi1,2,18; Zheng,Xingwu19
| |
| 2021-09-01 | |
| Source Publication | The Astrophysical Journal
 |
| ISSN | 0004-637X |
| Volume | 919Issue:1Pages:4 |
| Contribution Rank | 8 |
| Abstract | Abstract Peptide bonds, as the molecular bridges that connect amino acids, are crucial to the formation of proteins. Searches and studies of molecules with embedded peptide-like bonds are thus important for the understanding of protein formation in space. Here we report the first tentative detection of propionamide (C2H5CONH2), the largest peptide-like molecule detected in space toward Sagittarius B2(N1) at a position called N1E that is slightly offset from the continuum peak. New laboratory measurements of the propionamide spectrum were carried out in the 9–461 GHz range, which provide good opportunity to check directly for the transition frequencies of detected interstellar lines of propionamide. Our observing result indicates that propionamide emission comes from the warm, compact cores in Sagittarius B2, in which massive protostellars are forming. The column density of propionamide toward Sgr B2(N1E) was derived to be 1.5 × 1016 cm?2, which is three-fifths of that of acetamide, and one-nineteenth of that of formamide. This detection suggests that large peptide-like molecules can form and survive during star-forming process and may form more complex molecules in the interstellar medium (ISM). The detection of propionamide bodes well for the presence of polypeptides, as well as other complex prebiotic molecules in the ISM. |
| Keyword | Astrochemistry Spectral line identification Spectroscopy |
| DOI | 10.3847/1538-4357/ac091c |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | MICROWAVE-SPECTRUM ; DIPOLE-MOMENT ; INTERSTELLAR ; SPECTROSCOPY |
| Funding Project | Natural Science Foundation of China[11773054] ; Natural Science Foundation of China[U1731237] ; Natural Science Foundation of China[11590780] ; Natural Science Foundation of China[11590784] ; Natural Science Foundation of China[11973075] ; Natural Science Foundation of China[U1931104] ; Fundamental Research Funds for the Central Universities[2020CDJXZ002] ; Programme National Physique et Chimie du Milieu Interstellaire (PCMI) of CNRS/INSU |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | IOP:0004-637X-919-1-ac091c |
| Publisher | The American Astronomical Society |
| Funding Organization | Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Programme National Physique et Chimie du Milieu Interstellaire (PCMI) of CNRS/INSU |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4244 |
| Collection | 射电天文研究室_天体化学研究团组 |
| Corresponding Author | Li,Juan |
| Affiliation | 1.Department of Radio Science and Technology, Shanghai Astronomical Observatory, 80 Nandan Road, Shanghai 200030, People’s Republic of Chinalijuan@shao.ac.cn, jzwang@shao.ac.cn 2.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, People’s Republic of China 3.National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo, 181-8588, Japan 4.Institute of Radio Astronomy of NASU, Mystetstv 4, 61002 Kharkiv, Ukraine 5.Quantum Radiophysics Department, V.N. Karazin Kharkiv National University, Svobody Square 4, 61022 Kharkiv, Ukraine 6.Laboratoire de Physique des Lasers, Atomes, et Molécules, UMR CNRS 8523, Université de Lille I, F-59655 Villeneuve d’Ascq Cédex, France 7.School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road 55, 401331, Chongqing, People’s Republic of China 8.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, 150 Science 1-Street, Urumqi 830011, People’s Republic of China 9.Department of Chemistry, Eastern Kentucky University, Richmond, KY 40475, USA 10.Hamburger Sternwarte, Universit?t Hamburg, Gojenbergsweg 112, D-21029, Hamburg, Germany 11.Max Planck Institute for Extraterrestrial Physics (MPE), Giessenbachstr. 1, D-85748 Garching, Germany 12.11615 Settlers Circle, Germantown MD 20876, USA 13.Guest worker at Sensor Science Division, National Institute of Standards and Technology, Gaithersburg, MD 20899 USA 14.Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA 15.Korea Astronomy and Space Science Institute, 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of Korea 16.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210034, People’s Republic of China 17.School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, People’s Republic of China 18.University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, People’s Republic of China 19.School of Astronomy and Space Science, Nanjing University, Nanjing 210093, People’s Republic of China |
| Recommended Citation GB/T 7714 | Li,Juan,Wang,Junzhi,Lu,Xing,et al. Propionamide (C2H5CONH2): The Largest Peptide-like Molecule in Space[J]. The Astrophysical Journal,2021,919(1):4. |
| APA | Li,Juan.,Wang,Junzhi.,Lu,Xing.,Ilyushin,Vadim.,Motiyenko,Roman A..,...&Zheng,Xingwu.(2021).Propionamide (C2H5CONH2): The Largest Peptide-like Molecule in Space.The Astrophysical Journal,919(1),4. |
| MLA | Li,Juan,et al."Propionamide (C2H5CONH2): The Largest Peptide-like Molecule in Space".The Astrophysical Journal 919.1(2021):4. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Li-2021-Propionamide（1935KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment