Evidence map›Paper›PMID 37978954›Full record

ArticleJournal of the American Chemical Society2023

A Second Glass Transition Observed in Single-Component Homogeneous Liquids Due to Intramolecular Vitrification.

Ben A Russell, Mario González-Jiménez, Nikita V Tukachev, Laure-Anne Hayes, Tajrian Chowdhury, Uroš Javornik, Gregor Mali, Manlio Tassieri, Joy H Farnaby, Hans M Senn and 1 more

Open access · hybridAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of the American Chemical Society, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.4field-weighted citation impact, top 48% 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

1 citing paper in PubMed, 4 citations in OpenAlex.

  1. 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

11 authors at 2 institutions in 2 countries.

Ben A RussellSchool of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.ORCID 0000-0002-8740-6040
Mario González-JiménezSchool of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.ORCID 0000-0002-8853-0588
Nikita V TukachevSchool of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.
Laure-Anne HayesSchool of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.
Tajrian ChowdhurySchool of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.ORCID 0000-0002-8728-5277
Uroš JavornikSlovenian NMR Centre, National Institute of Chemistry, SI-1000 Ljubljana, Slovenia.ORCID 0000-0002-7959-6681
Gregor MaliDepartment of Inorganic Chemistry and Technology, National Institute of Chemistry, SI-1001 Ljubljana, Slovenia.ORCID 0000-0002-9012-2495
Manlio TassieriDivision of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8QQ, U.K.ORCID 0000-0002-6807-0385
Joy H FarnabySchool of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.ORCID 0000-0002-1224-7823
Hans M SennSchool of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.ORCID 0000-0001-8232-5957
Klaas WynneSchool of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.ORCID 0000-0002-5305-5940
University of Glasgow · GBNational Institute of Chemistry · SI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

On supercooling a liquid, the viscosity rises rapidly until at the glass transition it vitrifies into an amorphous solid accompanied by a steep drop in the heat capacity. Therefore, a pure homogeneous liquid is not expected to display more than one glass transition. Here we show that a family of single-component homogeneous molecular liquids, titanium tetraalkoxides, exhibit two calorimetric glass transitions of comparable magnitude, one of which is the conventional glass transition associated with dynamic arrest of the bulk liquid properties, while the other is associated with the freezing out of intramolecular degrees of freedom. Such intramolecular vitrification is likely to be found in molecules in which low-frequency terahertz intramolecular motion is coupled to the surrounding liquid. These results imply that intramolecular barrier-crossing processes, typically associated with chemical reactivity, do not necessarily follow the Arrhenius law but may freeze out at a finite temperature.

Identifiers

PMID37978954
PMCPMC10704603
OpenAlexW4388794151

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.