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DOI | 10.1126/science.aav5021 |
Topological molecular nanocarbons: All-benzene catenane and trefoil knot | |
Segawa, Yasutomo1,2; Kuwayama, Motonobu1; Hijikata, Yuh2,3,4; Fushimi, Masako1,2; Nishihara, Taishi1,2,5; Pirillo, Jenny3,4; Shirasaki, Junya1; Kubota, Natsumi2; Itami, Kenichiro1,2,3 | |
2019-07-19 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 365期号:6450页码:272-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | The generation of topologically complex nanocarbons can spur developments in science and technology. However, conventional synthetic routes to interlocked molecules require heteroatoms. We report the synthesis of catenanes and a molecular trefoil knot consisting solely of para-connected benzene rings. Characteristic fluorescence of a heterocatenane associated with fast energy transfer between two rings was observed, and the topological chirality of the all-benzene knot was confirmed by enantiomer separation and circular dichroism spectroscopy. The seemingly rigid all-benzene knot has rapid vortex-like motion in solution even at -95 degrees C, resulting in averaged nuclear magnetic resonance signals for all hydrogen atoms. This interesting dynamic behavior of the knot was theoretically predicted and could stimulate deeper understanding and applications of these previously untapped classes of topological molecular nanocarbons. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000476479200051 |
WOS关键词 | TIGHT-BINDING METHOD ; CARBON NANOTUBES ; DYNAMICS ; ENERGY ; DFTB3 |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
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/201893 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.JST ERATO, Itami Mol Nanocarbon Project, Chikusa Ku, Nagoya, Aichi 4648602, Japan; 2.Nagoya Univ, Grad Sch Sci, Chikusa Ku, Nagoya, Aichi 4648602, Japan; 3.Nagoya Univ, Inst Transformat Biomol WPI ITbM, Chikusa Ku, Nagoya, Aichi 4648602, Japan; 4.Hokkaido Univ, Inst Chem React Design & Discovery WPI ICReDD, Sapporo, Hokkaido 0010021, Japan; 5.Kyoto Univ, Inst Adv Energy, Kyoto 6110011, Japan |
推荐引用方式 GB/T 7714 | Segawa, Yasutomo,Kuwayama, Motonobu,Hijikata, Yuh,et al. Topological molecular nanocarbons: All-benzene catenane and trefoil knot[J]. SCIENCE,2019,365(6450):272-+. |
APA | Segawa, Yasutomo.,Kuwayama, Motonobu.,Hijikata, Yuh.,Fushimi, Masako.,Nishihara, Taishi.,...&Itami, Kenichiro.(2019).Topological molecular nanocarbons: All-benzene catenane and trefoil knot.SCIENCE,365(6450),272-+. |
MLA | Segawa, Yasutomo,et al."Topological molecular nanocarbons: All-benzene catenane and trefoil knot".SCIENCE 365.6450(2019):272-+. |
条目包含的文件 | 条目无相关文件。 |
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