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DOI | 10.1038/ncomms15887 |
Two-electron transfer stabilized by excited-state aromatization | |
Kim, Jinseok1,2; Oh, Juwon1,2; Park, Seongchul3,4; Zafra, Jose L.5; DeFrancisco, Justin R.6; Casanova, David7,8; Lim, Manho3,4; Tovar, John D.6; Casado, Juan5; Kim, Dongho1,2 | |
2019-11-01 | |
发表期刊 | NATURE COMMUNICATIONS
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ISSN | 2041-1723 |
出版年 | 2019 |
卷号 | 10 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea; Spain; USA |
英文摘要 | The scientific significance of excited-state aromaticity concerns with the elucidation of processes and properties in the excited states. Here, we focus on TMTQ, an oligomer composed of a central 1,6-methano[10]annulene and 5-dicyanomethyl-thiophene peripheries (acceptor-donor-acceptor system), and investigate a two-electron transfer process dominantly stabilized by an aromatization in the low-energy lying excited state. Our spectroscopic measurements quantitatively observe the shift of two pi-electrons between donor and acceptors. It is revealed that this two-electron transfer process accompanies the excited-state aromatization, producing a Baird aromatic 8 pi core annulene in TMTQ. Biradical character on each terminal dicyanomethylene group of TMTQ allows a pseudo triplet-like configuration on the 8 pi core annulene with multiexcitonic nature, which stabilizes the energetically unfavorable two-charge separated state by the formation of Baird aromatic core annulene. This finding provides a comprehensive understanding of the role of excited-state aromaticity and insight to designing functional photoactive materials. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000493712400002 |
WOS关键词 | INTRAMOLECULAR SINGLET FISSION ; LYING ELECTRONIC STATES ; CHARGE-TRANSFER STATES ; QUINOIDAL OLIGOTHIOPHENES ; ORGANIC-PHOTOCHEMISTRY ; TRIPLET-STATES ; AROMATICITY ; ANTIAROMATICITY ; BENZENE ; LOWEST |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/203354 |
专题 | 资源环境科学 |
作者单位 | 1.Yonsei Univ, Spect Lab Funct Elect Syst, Seoul 03722, South Korea; 2.Yonsei Univ, Dept Chem, Seoul 03722, South Korea; 3.Pusan Natl Univ, Dept Chem, Busan 46241, South Korea; 4.Pusan Natl Univ, Chem Inst Funct Mat, Busan 46241, South Korea; 5.Univ Malaga, Andalucia Tech, Dept Phys Chem, Campus Teatinos S-N, E-29071 Malaga, Spain; 6.Johns Hopkins Univ, Dept Chem, 3400 North Charles St, Baltimore, MD 21218 USA; 7.DIPC, Paseo Manuel de Lardizabal 1, Donostia San Sebastian 20018, Euskadi, Spain; 8.Ikerbasque, Basque Fdn Sci, Paseo Manuel de Lardizabal 1, Donostia San Sebastian 20018, Euskadi, Spain |
推荐引用方式 GB/T 7714 | Kim, Jinseok,Oh, Juwon,Park, Seongchul,et al. Two-electron transfer stabilized by excited-state aromatization[J]. NATURE COMMUNICATIONS,2019,10. |
APA | Kim, Jinseok.,Oh, Juwon.,Park, Seongchul.,Zafra, Jose L..,DeFrancisco, Justin R..,...&Kim, Dongho.(2019).Two-electron transfer stabilized by excited-state aromatization.NATURE COMMUNICATIONS,10. |
MLA | Kim, Jinseok,et al."Two-electron transfer stabilized by excited-state aromatization".NATURE COMMUNICATIONS 10(2019). |
条目包含的文件 | 条目无相关文件。 |
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