Evidence map›Paper›PMID 41533726›Full record

ArticleChemistry, an Asian journal2026

Pyridine and N-Pyridinium Functionalized Macrocyclic Squaramide Anion Receptors with High Affinity for Aqueous Sulfate.

Thomas M Salmon, Ena T Luis, Stephen M Butler, Katrina A Jolliffe

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Chemistry, an Asian journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

4 authors.

Thomas M SalmonSchool of Chemistry, The University of Sydney, NSW, Australia.ORCID https://orcid.org/0009-0006-5468-8922
Ena T LuisSchool of Chemistry, The University of Sydney, NSW, Australia.
Stephen M ButlerSchool of Chemistry, The University of Sydney, NSW, Australia.
Katrina A JolliffeSchool of Chemistry, The University of Sydney, NSW, Australia.ORCID https://orcid.org/0000-0003-1100-4544

Funding

Australian Research Council CE200100012
6 · The paper itself

Abstract

Macrocyclic squaramide-containing receptors have previously been shown to bind sulfate with high selectivity and affinity in aqueous-organic mixtures. To increase binding affinity of this class of hydrogen-bonding receptors in pure water, macrocycles in which pyridinium groups have been inserted to provide additional charge-assisted hydrogen-bonding interactions were synthesized and their anion binding evaluated. The inclusion of charge-assisted interactions provides enhanced binding affinity for sulfate in water but concomitantly reduces ability of the receptors to discriminate sulfate from the closely related selenate and leads to unexpected changes in binding stoichiometry.

Indexed as

anion receptormacrocyclemolecular recognitionsupramolecular chemistry

Identifiers

PMID41533726
PMCPMC13394354

What OpenQuestion holds

Textmetadata
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.