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| Low-temperature gas-phase formation of cyclopentadiene and its role in the formation of aromatics in the interstellar medium | |
Yang, Zhenghai1; Medvedkov, Iakov A.1; Goettl, Shane J.1; Nikolayev, Anatoliy A.2; Mebel, Alexander M.3; Li, Xiaohu4,5,6 ; Kaiser, Ralf I.1
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| 2024-12-17 | |
| Source Publication | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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| ISSN | 0027-8424 |
| Volume | 121Issue:51Pages:2409933121 |
| Contribution Rank | 4 |
| Abstract | The cyclopentadiene (C5H6) molecule has emerged as a molecular building block of nonplanar polycyclic aromatic hydrocarbons (PAHs) and carbonaceous nanostructures such as corannulene (C20H10), nanobowls (C40H10), and fullerenes (C60) in deep space. However, the underlying elementary gas- phase processes synthesizing cyclopentadiene from acyclic hydrocarbon precursors have remained elusive. Here, by merging crossed molecular beam experiments with rate coefficient calculations and comprehensive astrochemical modeling, we afford persuasive testimony on an unconventional low- temperature cyclization pathway to cyclopentadiene from acyclic precursors through the reaction of the simplest diatomic organic radical-methylidyne (CH)- with 1,3- butadiene (C4H6) representing main route to cyclopentadiene observed in TaurusMolecular Cloud. This facile route provides potential solution for the incorporation of the cyclopentadiene moiety in complex aromatic systems via bottom-up molecular mass growth processes and offers an entry point to the low- temperature chemistry in deep space leading eventually to nonplanar PAHs in our carbonaceous Universe. |
| Keyword | reaction dynamics five- membered ring polycyclic aromatic hydrocarbon interstellar medium aromaticity |
| DOI | 10.1073/pnas.2409933121 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | ACTIVE THERMOCHEMICAL TABLES ; MOLECULAR-BEAM ; HYDROCARBONS ; ENERGY ; IDENTIFICATION ; ISOMERS ; BENZENE ; TMC-1 |
| Funding Project | U.S. Department of Energy, Basic Energy Sciences[DE-FG02-03ER15411] ; NSF of China[12473025] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2024D01E37] |
| WOS Research Area | Science & Technology - Other Topics |
| WOS Subject | Multidisciplinary Sciences |
| WOS ID | WOS:001385652800006 |
| Publisher | NATL ACAD SCIENCES |
| Funding Organization | U.S. Department of Energy, Basic Energy Sciences ; NSF of China ; Natural Science Foundation of Xinjiang Uygur Autonomous Region |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/7347 |
| Collection | 射电天文研究室_天体化学研究团组 |
| Corresponding Author | Li, Xiaohu; Kaiser, Ralf I. |
| Affiliation | 1.Univ Hawaii Manoa, Dept Chem, Honolulu, HI 96822 USA 2.Samara Natl Res Univ, Lab Combust Phys & Chem, Samara 443086, Russia 3.Florida Int Univ, Dept Chem & Biochem, Miami, FL 33199 USA 4.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 5.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Xinjiang, Peoples R China 6.Chinese Acad Sci, Key Lab Radio Astron & Technol, Beijing 100101, Peoples R China |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Yang, Zhenghai,Medvedkov, Iakov A.,Goettl, Shane J.,et al. Low-temperature gas-phase formation of cyclopentadiene and its role in the formation of aromatics in the interstellar medium[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2024,121(51):2409933121. |
| APA | Yang, Zhenghai.,Medvedkov, Iakov A..,Goettl, Shane J..,Nikolayev, Anatoliy A..,Mebel, Alexander M..,...&Kaiser, Ralf I..(2024).Low-temperature gas-phase formation of cyclopentadiene and its role in the formation of aromatics in the interstellar medium.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,121(51),2409933121. |
| MLA | Yang, Zhenghai,et al."Low-temperature gas-phase formation of cyclopentadiene and its role in the formation of aromatics in the interstellar medium".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 121.51(2024):2409933121. |
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| File Name/Size | DocType | Version | Access | License | ||
| Yang-2024-Low-temper（4599KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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