{"title":"具有高稳定性和长自旋寿命的三态基态非交替纳米石墨烯","authors":"Weixiang Zhou, Yiyang Fei, Yu-Shuang Zhang, Xiaohe Miao, Shang-Da Jiang, Junzhi Liu","doi":"10.1038/s41467-024-54276-0","DOIUrl":null,"url":null,"abstract":"<p>High-spin carbon-based polyradicals exhibit significant potential for applications in quantum information storage and sensing; however, their practical application is hampered by limited structural diversity and chemical instability. Here, we report a straightforward synthetic and isolation method for synthesizing a nonalternant nanographene (<b>1</b>) with a triplet ground state. Moving beyond the classic <i>m</i>-xylylene scaffold for high-spin organic molecules, seven-five-seven (7–5–7)-membered rings are introduced to create stable high-spin diradicals with half-lives (<i>t</i><sub>1/2</sub>) as long as 101 days. Moreover, considering the spin relaxation of compound <b>1</b>, with a spin–lattice relaxation time (<i>T</i><sub>1</sub>) of 53.55 ms and a coherence time (<i>T</i><sub>m</sub>) of 3.41 μs at 10 K, the compound <b>1</b> shows great promise for applications in spin-based information retention and quantum computing.</p>","PeriodicalId":19066,"journal":{"name":"Nature Communications","volume":"57 1","pages":""},"PeriodicalIF":15.7000,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Triplet-ground-state nonalternant nanographene with high stability and long spin lifetimes\",\"authors\":\"Weixiang Zhou, Yiyang Fei, Yu-Shuang Zhang, Xiaohe Miao, Shang-Da Jiang, Junzhi Liu\",\"doi\":\"10.1038/s41467-024-54276-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>High-spin carbon-based polyradicals exhibit significant potential for applications in quantum information storage and sensing; however, their practical application is hampered by limited structural diversity and chemical instability. Here, we report a straightforward synthetic and isolation method for synthesizing a nonalternant nanographene (<b>1</b>) with a triplet ground state. Moving beyond the classic <i>m</i>-xylylene scaffold for high-spin organic molecules, seven-five-seven (7–5–7)-membered rings are introduced to create stable high-spin diradicals with half-lives (<i>t</i><sub>1/2</sub>) as long as 101 days. Moreover, considering the spin relaxation of compound <b>1</b>, with a spin–lattice relaxation time (<i>T</i><sub>1</sub>) of 53.55 ms and a coherence time (<i>T</i><sub>m</sub>) of 3.41 μs at 10 K, the compound <b>1</b> shows great promise for applications in spin-based information retention and quantum computing.</p>\",\"PeriodicalId\":19066,\"journal\":{\"name\":\"Nature Communications\",\"volume\":\"57 1\",\"pages\":\"\"},\"PeriodicalIF\":15.7000,\"publicationDate\":\"2025-01-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nature Communications\",\"FirstCategoryId\":\"103\",\"ListUrlMain\":\"https://doi.org/10.1038/s41467-024-54276-0\",\"RegionNum\":1,\"RegionCategory\":\"综合性期刊\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MULTIDISCIPLINARY SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nature Communications","FirstCategoryId":"103","ListUrlMain":"https://doi.org/10.1038/s41467-024-54276-0","RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}
Triplet-ground-state nonalternant nanographene with high stability and long spin lifetimes
High-spin carbon-based polyradicals exhibit significant potential for applications in quantum information storage and sensing; however, their practical application is hampered by limited structural diversity and chemical instability. Here, we report a straightforward synthetic and isolation method for synthesizing a nonalternant nanographene (1) with a triplet ground state. Moving beyond the classic m-xylylene scaffold for high-spin organic molecules, seven-five-seven (7–5–7)-membered rings are introduced to create stable high-spin diradicals with half-lives (t1/2) as long as 101 days. Moreover, considering the spin relaxation of compound 1, with a spin–lattice relaxation time (T1) of 53.55 ms and a coherence time (Tm) of 3.41 μs at 10 K, the compound 1 shows great promise for applications in spin-based information retention and quantum computing.
期刊介绍：
Nature Communications, an open-access journal, publishes high-quality research spanning all areas of the natural sciences. Papers featured in the journal showcase significant advances relevant to specialists in each respective field. With a 2-year impact factor of 16.6 (2022) and a median time of 8 days from submission to the first editorial decision, Nature Communications is committed to rapid dissemination of research findings. As a multidisciplinary journal, it welcomes contributions from biological, health, physical, chemical, Earth, social, mathematical, applied, and engineering sciences, aiming to highlight important breakthroughs within each domain.
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