Evidence map›Paper›PMID 39609426›Full record

ArticleNature communications2024

Measuring competing outcomes of a single-molecule reaction reveals classical Arrhenius chemical kinetics.

Pieter J Keenan, Rebecca M Purkiss, Tillmann Klamroth, Peter A Sloan, Kristina R Rusimova

Abstract read
In one paragraph

Article in Nature communications, 2024. 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
–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

1 citing paper in PubMed.

  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

5 authors.

Pieter J Keenan *Department of Physics, University of Bath, Bath, UK.ORCID http://orcid.org/0000-0002-9346-7982
Rebecca M Purkiss *Department of Physics, University of Bath, Bath, UK.
Tillmann KlamrothUniversität Potsdam, Institut für Chemie, Theoretische Chemie, Potsdam, Germany.ORCID http://orcid.org/0000-0001-5555-5490
Peter A SloanDepartment of Physics, University of Bath, Bath, UK.ORCID http://orcid.org/0000-0002-0810-8468
Kristina R RusimovaDepartment of Physics, University of Bath, Bath, UK. k.r.rusimova@bath.ac.uk.ORCID http://orcid.org/0000-0002-3679-9948

Funding

RCUK | Engineering and Physical Sciences Research Council (EPSRC) EP/X031934/1Royal Society RGS/R1/231369
6 · The paper itself

Abstract

Programming matter one molecule at a time is a long-standing goal in nanoscience. The atomic resolution of a scanning tunnelling microscope (STM) can give control over the probability of inducing single-outcome single-molecule reactions. Here we show it is possible to measure and influence the outcome of a single-molecule reaction with multiple competing outcomes. By precise injection of electrons from an STM tip, toluene molecules are induced to react with two outcomes: switching to an adjacent site or desorption. Within a voltage range set by the electronic structure of the molecule-surface system, we see that the branching ratio between these two outcomes is dependent on the excess energy the exciting electron carries. Using known values, ab initio DFT calculations and empirical models, we conclude that this excess energy leads to a heating of a common intermediate physisorbed state and gives control over the two outcomes via their energy barriers and prefactors.

Identifiers

PMID39609426
PMCPMC11604936

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Registered trials

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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.