Evidence map›Paper›PMID 29359761›Full record

ArticleNature chemistry2018

Labelling and determination of the energy in reactive intermediates in solution enabled by energy-dependent reaction selectivity.

Hiroaki Kurouchi, Daniel A Singleton

Abstract read
In one paragraph

Article in Nature chemistry, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

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  14. MonoauratedChemical science · 2019
    Article
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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

2 authors.

Hiroaki KurouchiDepartment of Chemistry, Texas A&M University, College Station, Texas 77842, USA.
Daniel A SingletonDepartment of Chemistry, Texas A&M University, College Station, Texas 77842, USA.ORCID 0000-0003-3656-1339

Funding

New Concepts In Organic Selectivity and MechanismsR01GM045617 · NIGMS · TEXAS A&M UNIVERSITY SYSTEM · PI SINGLETON, DANIEL A · 1991 to 2019
$4.5M
NIGMS NIH HHS R01 GM045617
6 · The paper itself

Abstract

Any long-lived chemical structure in solution is subject to statistical energy equilibration, so the history of any specific structure does not affect its subsequent reactions. This is not true for very short-lived intermediates because energy equilibration takes time. Here, this idea is applied to achieve the 'energy labelling' of a reactive intermediate. The selectivity of the ring-opening α-cleavage reaction of the 1-methylcyclobutoxy radical is found here to vary broadly depending on how the radical was formed. Reactions that provide little excess energy to the intermediate lead to a high selectivity in the subsequent cleavage (measured as a kinetic isotope effect), whereas reactions that provide more excess energy to the intermediate exhibit a lower selectivity. Accounting for the expected excess energy allows the prediction of the observed product ratios and, in turn, the product ratios can be used to determine the energy present in an intermediate.

Indexed as

ThermodynamicsAlcoholsEnergy TransferKineticsMolecular StructureSolutionsAlcoholsalkoxyl radicalSolutions

Identifiers

PMID29359761
PMCPMC5785089

What OpenQuestion holds

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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.