Evidence map›Paper›PMID 35729153›Full record

ArticleNature communications2022

A trefoil knot self-templated through imination in water.

Ye Lei, Zhaoyong Li, Guangcheng Wu, Lijie Zhang, Lu Tong, Tianyi Tong, Qiong Chen, Lingxiang Wang, Chenqi Ge, Yuxi Wei and 5 more

Abstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Phosphorescent metallaknots of Au(I)-bis(acetylide) strands directed by Cu(I) π-coordination.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  12. Article
  13. Article
  14. Dynamic Chemistry Toolbox for Advanced Sustainable Materials.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Review
  15. Dynamic covalent synthesis.Chemical science · 2024
    Review
  16. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors.

Ye Lei *Department of Chemistry, Zhejiang University, Hangzhou, 310027, PR China.
Zhaoyong Li *Department of Chemistry, Zhejiang University, Hangzhou, 310027, PR China.
Guangcheng WuDepartment of Chemistry, Zhejiang University, Hangzhou, 310027, PR China.
Lijie ZhangHangzhou Institute of Advanced Studies, Zhejiang Normal University, Hangzhou, 311231, PR China.
Lu TongDepartment of Chemistry, Zhejiang University, Hangzhou, 310027, PR China.
Tianyi TongCollege of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China.
Qiong ChenDepartment of Chemistry, Zhejiang University, Hangzhou, 310027, PR China.
Lingxiang WangDepartment of Chemistry, Zhejiang University, Hangzhou, 310027, PR China.ORCID 0000-0003-0665-8594
Chenqi GeDepartment of Chemistry, Zhejiang University, Hangzhou, 310027, PR China.
Yuxi WeiDepartment of Chemistry, Zhejiang University, Hangzhou, 310027, PR China.
Yuanjiang PanDepartment of Chemistry, Zhejiang University, Hangzhou, 310027, PR China.
Andrew C-H SueCollege of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China. Andrewsue@xmu.edu.cn.ORCID 0000-0001-9557-2658
Linjun WangDepartment of Chemistry, Zhejiang University, Hangzhou, 310027, PR China. ljwang@zju.edu.cn.ORCID 0000-0002-6169-7687
Feihe HuangDepartment of Chemistry, Zhejiang University, Hangzhou, 310027, PR China. fhuang@zju.edu.cn.ORCID 0000-0003-3177-6744
Hao LiDepartment of Chemistry, Zhejiang University, Hangzhou, 310027, PR China. lihao2015@zju.edu.cn.ORCID 0000-0002-6959-3233

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The preparation of topologically nontrivial molecules is often assisted by covalent, supramolecular or coordinative templates that provide spatial pre-organization for all components. Herein, we report a trefoil knot that can be self-assembled efficiently in water without involving additional templates. The direct condensation of three equivalents of a tetraformyl precursor and six equivalents of a chiral diamine produces successfully a [3 + 6] trefoil knot whose intrinsic handedness is dictated by the stereochemical configuration of the diamine linkers. Contrary to the conventional wisdom that imine condensation is not amenable to use in water, the multivalent cooperativity between all the imine bonds within the framework makes this trefoil knot robust in the aqueous environment. Furthermore, the presence of water is proven to be essential for the trefoil knot formation. A topologically trivial macrocycle composed of two tetraformyl and four diamino building blocks is obtained when a similar reaction is performed in organic media, indicating that hydrophobic effect is a major driving force behind the scene.

Identifiers

PMID35729153
PMCPMC9213439

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