Gas-phase formation of the resonantly stabilized 1-indenyl (C9H7?) radical in the interstellar medium
文献类型：期刊论文
| 作者 | Yang, Zhenghai4; Galimova, Galiya R.3; He, Chao4; Goettl, Shane J.4; Paul, Dababrata4; Lu, Wenchao2; Ahmed, Musahid2; Mebel, Alexander M.3; Li, Xiaohu1,5 ; Kaiser, Ralf I.4
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| 刊名 | SCIENCE ADVANCES
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| 出版日期 | 2023-09-08 |
| 卷号 | 9期号:36页码:eadi5060 |
| ISSN号 | 2375-2548 |
| DOI | 10.1126/sciadv.adi5060 |
| 产权排序 | 4 |
| 英文摘要 | The 1-indenyl (C9H7 center dot) radical, a prototype aromatic and resonantly stabilized free radical carrying a six- and a five-membered ring, has emerged as a fundamental molecular building block of nonplanar polycyclic aromatic hydrocarbons (PAHs) and carbonaceous nanostructures in deep space and combustion systems. However, the underlying formation mechanisms have remained elusive. Here, we reveal an unconventional low-temperature gas-phase formation of 1-indenyl via barrierless ring annulation involving reactions of atomic carbon [C(P-3)] with styrene (C6H5C2H3) and propargyl (C3H3 center dot) with phenyl (C6H5 center dot). Macroscopic environments like molecular clouds act as natural low-temperature laboratories, where rapid molecular mass growth to 1-indenyl and subsequently complex PAHs involving vinyl side-chained aromatics and aryl radicals can occur. These reactions may account for the formation of PAHs and their derivatives in the interstellar medium and carbonaceous chondrites and could close the gap of timescales of their production and destruction in our carbonaceous universe. |
| WOS关键词 | POLYCYCLIC AROMATIC-HYDROCARBONS ; CROSSED-BEAM REACTION ; CHEMICAL-DYNAMICS ; C6H6(X (1)A(1G)) ; ATOMIC CARBON ; AB-INITIO ; MOLECULES ; BENZENE ; C(P-3(J)) ; CHEMISTRY |
| 资助项目 | U.S. Department of Energy, Basic Energy Sciences[DE-FG02-03ER15411] ; U.S. Department of Energy, Basic Energy Sciences[DE-FG02-04ER15570] ; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy through the Gas Phase Chemical Physics program of the Chemical Sciences Division[DE-AC02-05CH11231] ; Xinjiang Tianchi project (2019) |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001129563900016 |
| 出版者 | AMER ASSOC ADVANCEMENT SCIENCE |
| 资助机构 | U.S. Department of Energy, Basic Energy Sciences ; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy through the Gas Phase Chemical Physics program of the Chemical Sciences Division ; Xinjiang Tianchi project (2019) |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5718]  |
| 专题 | 天体化学研究团组 |
| 通讯作者 | Ahmed, Musahid; Mebel, Alexander M.; Li, Xiaohu; Kaiser, Ralf I. |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Xinjiang, Peoples R China 2.Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA 3.Florida Inter Natl Univ, Dept Chem & Biochem, Miami, FL 33199 USA 4.Univ Hawaii Manoa, Dept Chem, 2545 McCarthy Mall, Honolulu, HI 96822 USA 5.Chinese Acad Sci, Xinjiang Astron Observatory, Urumqi 830011, Xinjiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Zhenghai,Galimova, Galiya R.,He, Chao,et al. Gas-phase formation of the resonantly stabilized 1-indenyl (C9H7?) radical in the interstellar medium[J]. SCIENCE ADVANCES,2023,9(36):eadi5060. |
| APA | Yang, Zhenghai.,Galimova, Galiya R..,He, Chao.,Goettl, Shane J..,Paul, Dababrata.,...&Kaiser, Ralf I..(2023).Gas-phase formation of the resonantly stabilized 1-indenyl (C9H7?) radical in the interstellar medium.SCIENCE ADVANCES,9(36),eadi5060. |
| MLA | Yang, Zhenghai,et al."Gas-phase formation of the resonantly stabilized 1-indenyl (C9H7?) radical in the interstellar medium".SCIENCE ADVANCES 9.36(2023):eadi5060. |
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来源：新疆天文台
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