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DOI | 10.1038/s41467-018-04616-8 |
Anion-capped metallohost allows extremely slow guest uptake and on-demand acceleration of guest exchange | |
Sakata, Yoko; Murata, Chiho; Akine, Shigehisa | |
2017-07-12 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2017 |
卷号 | 8 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | The switching of molecular recognition selectivity is important for tuning molecular functions based on host-guest binding. While the switching processes in artificial functional molecules are usually driven by changes of the thermodynamic stabilities, non-equilibrium phenomena also play an important role in biological systems. Thus, here we designed a host-guest system utilizing a non-equilibrium kinetically trapped state for on-demand and time-programmable control of molecular functions. We synthesized a bis(saloph) macrocyclic cobalt(III) metallohost 1(OTf)(2), which has anion caps at both sides of the cation-binding site. The anion caps effectively retard the guest uptake/release so that we can easily make a non-equilibrium kinetically trapped state. Indeed, we can obtain a long-lived kinetically trapped state {[1 center dot K](3+) +La3+} prior to the formation of the thermodynamically more stable state {[1 center dot La](5+) +K+}. The guest exchange to the more stable state from this kinetically trapped state is significantly accelerated by exchange of TfO- anion caps by AcO- in an on-demand manner. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405270500001 |
WOS关键词 | PATHWAY COMPLEXITY ; ORGANIC-MOLECULES ; SODIUM-ION ; COMPLEXATION ; RELEASE ; ENCAPSULATION ; BINDING ; SYSTEMS |
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/203834 |
专题 | 资源环境科学 |
作者单位 | Kanazawa Univ, Grad Sch Nat Sci & Technol, Kakuma Machi, Kanazawa, Ishikawa 9201192, Japan |
推荐引用方式 GB/T 7714 | Sakata, Yoko,Murata, Chiho,Akine, Shigehisa. Anion-capped metallohost allows extremely slow guest uptake and on-demand acceleration of guest exchange[J]. NATURE COMMUNICATIONS,2017,8. |
APA | Sakata, Yoko,Murata, Chiho,&Akine, Shigehisa.(2017).Anion-capped metallohost allows extremely slow guest uptake and on-demand acceleration of guest exchange.NATURE COMMUNICATIONS,8. |
MLA | Sakata, Yoko,et al."Anion-capped metallohost allows extremely slow guest uptake and on-demand acceleration of guest exchange".NATURE COMMUNICATIONS 8(2017). |
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