An Unconventional Dark Radical Chemistry in Dense Molecular Clouds: Directed Gas-Phase Formation of Naphthyl Radicals
文献类型：期刊论文
| 作者 | Yang, Zhenghai5; Galimova, Galiya R.4; He, Chao5; Goettl, Shane J.5; Li, Xiaohu1,2,3; Mebel, Alexander M.4; Kaiser, Ralf I.5 |
| 刊名 | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
 |
| 出版日期 | 2025-12-24 |
| 卷号 | 147期号:51页码:47359-47369 |
| ISSN号 | 0002-7863 |
| DOI | 10.1021/jacs.5c15459 |
| 产权排序 | 3 |
| 英文摘要 | The synthetic pathways to aromatic molecules inside photon-shielded dense molecular clouds remain a fundamental, unsolved enigma in astrochemistry and astrophysics, with low-temperature molecular growth routes involving aromatic radicals, such as prototype bicyclic naphthyl (C10H7 center dot), implicated as key sources. Here, exploiting crossed molecular beam experiments augmented by electronic structure calculations, unexpected pathways are exposed leading to the gas-phase formation of 1- and 2-naphthyl via barrierless bimolecular reactions of atomic carbon (C) with indene (C9H8) and of dicarbon (C2) with styrene (C8H8) accompanied by ring expansion and cyclization together with aromatization. These facile routes challenge conventional wisdom that aromatic radicals are formed in deep space solely via "bright" gas-phase photochemistry of their closed-shell polycyclic aromatic hydrocarbon (PAH) precursors. A hitherto disregarded "dark" aromatic radical chemistry with aromatic radicals synthesized via gas-phase reactions offers new concepts on the chemical evolution of the chemistry of dark molecular clouds eventually culminating in the rapid formation of aromatics, fullerenes, and carbonaceous nanostructures. |
| WOS关键词 | POLYCYCLIC AROMATIC-HYDROCARBONS ; LOW-TEMPERATURE FORMATION ; INTERSTELLAR-MEDIUM ; DICARBON MOLECULES ; NAPHTHALENE ; MECHANISM ; GROWTH ; PAHS ; EPR |
| 资助项目 | U.S. Department of Energy[DE-FG02-03ER15411] ; University of Hawai'i at Manoa[NA] ; Florida International University[NA] ; U.S. Department of Energy (DOE)[DE-FG02-03ER15411] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:001638319900001 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | U.S. Department of Energy ; University of Hawai'i at Manoa ; Florida International University ; U.S. Department of Energy (DOE) |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/8429]  |
| 专题 | 天体化学研究团组 |
| 通讯作者 | Li, Xiaohu; Mebel, Alexander M.; Kaiser, Ralf I. |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Radio Astron & Technol, Beijing 100101, Peoples R China 2.Xinjiang Key Lab Radio Astrophys, Urumqi 830011, Xinjiang, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 4.Florida Int Univ, Dept Chem & Biochem, Miami, FL 33199 USA 5.Univ Hawaii Manoa, Dept Chem, Honolulu, HI 96822 USA |
| 推荐引用方式 GB/T 7714 | Yang, Zhenghai,Galimova, Galiya R.,He, Chao,et al. An Unconventional Dark Radical Chemistry in Dense Molecular Clouds: Directed Gas-Phase Formation of Naphthyl Radicals[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2025,147(51):47359-47369. |
| APA | Yang, Zhenghai.,Galimova, Galiya R..,He, Chao.,Goettl, Shane J..,Li, Xiaohu.,...&Kaiser, Ralf I..(2025).An Unconventional Dark Radical Chemistry in Dense Molecular Clouds: Directed Gas-Phase Formation of Naphthyl Radicals.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,147(51),47359-47369. |
| MLA | Yang, Zhenghai,et al."An Unconventional Dark Radical Chemistry in Dense Molecular Clouds: Directed Gas-Phase Formation of Naphthyl Radicals".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 147.51(2025):47359-47369. |
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来源：新疆天文台
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