Evidence map›Paper›PMID 25683453›Full record

ArticleAngewandte Chemie (International ed. in English)2015

Caterpillar track complexes in template-directed synthesis and correlated molecular motion.

Shiqi Liu, Dmitry V Kondratuk, Sophie A L Rousseaux, Guzmán Gil-Ramírez, Melanie C O'Sullivan, Jonathan Cremers, Tim D W Claridge, Harry L Anderson

Open access · greenAbstract read
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
9.4field-weighted citation impact, top 1% of its field
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

25 citing papers in PubMed, 111 citations in OpenAlex.

  1. An 18-Porphyrin Nanoring at the Size Limit for Global Aromaticity.Journal of the American Chemical Society · 2025
    Article
  2. Article
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  4. Crownphyrins: Metal-Mediated Transformations of the Porphyrin-Crown Ether Hybrids.Angewandte Chemie (International ed. in English) · 2022
    Article
  5. Article
  6. Article
  7. Article
  8. Heteroleptic metallosupramolecular aggregatesBeilstein journal of organic chemistry · 2022
    Review
  9. Article
  10. Article
  11. Carbenaporphyrins: No Longer Missing Ligands in N-Heterocyclic Carbene Chemistry.Angewandte Chemie (International ed. in English) · 2021
    Article
  12. Dynamics of Hydrogen Bonding in Three-Component Nanorotors.Chemistry (Weinheim an der Bergstrasse, Germany) · 2020
    Article
  13. Article
  14. Single-Acetylene Linked Porphyrin Nanorings.Journal of the American Chemical Society · 2017
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

8 authors at 1 institution in 1 country.

Shiqi LiuDepartment of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, OX1 3TA (UK).
Dmitry V Kondratuk
Sophie A L Rousseaux
Guzmán Gil-Ramírez
Melanie C O'Sullivan
Jonathan Cremers
Tim D W Claridge
Harry L Anderson
University of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Small alterations to the structure of a star-shaped template totally change its mode of operation. The hexapyridyl template directs the conversion of a porphyrin dimer to the cyclic hexamer, but deleting one pyridine site changes the product to the cyclic decamer, while deleting two binding sites changes the product to the cyclic octamer. This surprising switch in selectivity is explained by the formation of 2:1 caterpillar track complexes, in which two template wheels bind inside the nanoring. Caterpillar track complexes can also be prepared by binding the hexapyridyl template inside the 8- and 10-porphyrin nanorings. NMR exchange spectroscopy (EXSY) experiments show that these complexes exhibit correlated motion, in which the conrotatory rotation of the two template wheels is coupled to rotation of the nanoring track. In the case of the 10-porphyrin system, the correlated motion can be locked by binding palladium(II) dichloride between the two templates.

Indexed as

molecular gearsmolecular motionporphyrinoidssupramolecular chemistrytemplated synthesis

Identifiers

PMID25683453
PMCPMC4471551
OpenAlexW2010945002

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.