Evidence map›Paper›PMID 26283386›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2015

Electrochemically addressable trisradical rotaxanes organized within a metal-organic framework.

Paul R McGonigal, Pravas Deria, Idan Hod, Peyman Z Moghadam, Alyssa-Jennifer Avestro, Noah E Horwitz, Ian C Gibbs-Hall, Anthea K Blackburn, Dongyang Chen, Youssry Y Botros and 5 more

Abstract read
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In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. 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. Supramolecular Chemistry in Metal-Organic Framework Materials.Advanced materials (Deerfield Beach, Fla.) · 2025
    Review
  2. Review
  3. Review
  4. The Story of the Little Blue Box: A Tribute to Siegfried Hünig.Angewandte Chemie (International ed. in English) · 2023
    Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
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  13. Article
  14. QnAs with Fraser Stoddart.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  15. Article
  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.

Paul R McGonigalDepartment of Chemistry, Northwestern University, Evanston, IL 60208;
Pravas DeriaDepartment of Chemistry, Northwestern University, Evanston, IL 60208;
Idan HodDepartment of Chemistry, Northwestern University, Evanston, IL 60208;
Peyman Z MoghadamDepartment of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208;
Alyssa-Jennifer AvestroDepartment of Chemistry, Northwestern University, Evanston, IL 60208;
Noah E HorwitzDepartment of Chemistry, Northwestern University, Evanston, IL 60208;
Ian C Gibbs-HallDepartment of Chemistry, Northwestern University, Evanston, IL 60208;
Anthea K BlackburnDepartment of Chemistry, Northwestern University, Evanston, IL 60208;
Dongyang ChenDepartment of Chemistry, Northwestern University, Evanston, IL 60208;
Youssry Y BotrosNational Center for Nano Technology Research, King Abdulaziz City for Science and Technology, Riyadh 11442, Kingdom of Saudi Arabia, University Research Office, Intel Labs, Santa Clara, CA 95054;
Michael R WasielewskiDepartment of Chemistry, Northwestern University, Evanston, IL 60208;
Randall Q SnurrDepartment of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208;
Joseph T HuppDepartment of Chemistry, Northwestern University, Evanston, IL 60208;
Omar K FarhaDepartment of Chemistry, Northwestern University, Evanston, IL 60208; Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah 22254, Kingdom of Saudi Arabia.
J Fraser StoddartDepartment of Chemistry, Northwestern University, Evanston, IL 60208; stoddart@northwestern.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The organization of trisradical rotaxanes within the channels of a Zr6-based metal-organic framework (NU-1000) has been achieved postsynthetically by solvent-assisted ligand incorporation. Robust Zr(IV)-carboxylate bonds are forged between the Zr clusters of NU-1000 and carboxylic acid groups of rotaxane precursors (semirotaxanes) as part of this building block replacement strategy. Ultraviolet-visible-near-infrared (UV-Vis-NIR), electron paramagnetic resonance (EPR), and 1H nuclear magnetic resonance (NMR) spectroscopies all confirm the capture of redox-active rotaxanes within the mesoscale hexagonal channels of NU-1000. Cyclic voltammetry measurements performed on electroactive thin films of the resulting material indicate that redox-active viologen subunits located on the rotaxane components can be accessed electrochemically in the solid state. In contradistinction to previous methods, this strategy for the incorporation of mechanically interlocked molecules within porous materials circumvents the need for de novo synthesis of a metal-organic framework, making it a particularly convenient approach for the design and creation of solid-state molecular switches and machines. The results presented here provide proof-of-concept for the application of postsynthetic transformations in the integration of dynamic molecular machines with robust porous frameworks.

Indexed as

mechanically interlocked moleculesmetal–organic frameworkmolecular switchesradicalsrotaxanes

Identifiers

PMID26283386
PMCPMC4568662

What OpenQuestion holds

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.