Evidence map›Paper›PMID 41305893›Full record

ArticleAngewandte Chemie (International ed. in English)2026

From Methane to Nanodiamond Precursors in Water: Superacid-like Condensation Pathways Under Extreme Conditions.

Thomas Thévenet, Axel Dian, Matteo Cioni, Alexis Markovits, Sandro Scandolo, Arthur France-Lanord, Flavio Siro Brigiano

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2026. 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

7 authors.

Thomas ThévenetLaboratoire de Chimie Théorique, Sorbonne Université, CNRS UMR 7616, 4 place Jussieu, Paris, 75005, France.
Axel DianLaboratoire de Chimie Théorique, Sorbonne Université, CNRS UMR 7616, 4 place Jussieu, Paris, 75005, France.
Matteo CioniMuséum National d'Histoire Naturelle, UMR CNRS 7590, Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, IMPMC, Sorbonne Université, Paris, F-75005, France.
Alexis MarkovitsLaboratoire de Chimie Théorique, Sorbonne Université, CNRS UMR 7616, 4 place Jussieu, Paris, 75005, France.
Sandro ScandoloThe Abdus Salam International Centre for Theoretical Physics, Str. Costiera, 11, Trieste, 34151, Italy.
Arthur France-LanordMuséum National d'Histoire Naturelle, UMR CNRS 7590, Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, IMPMC, Sorbonne Université, Paris, F-75005, France.ORCID https://orcid.org/0000-0003-0586-1945
Flavio Siro BrigianoLaboratoire de Chimie Théorique, Sorbonne Université, CNRS UMR 7616, 4 place Jussieu, Paris, 75005, France.ORCID https://orcid.org/0000-0003-2857-3188

Funding

Agence Nationale de la Recherche ANR-23-CE29-000Agence Nationale de la Recherche ANR-23-CE30-0017
6 · The paper itself

Abstract

The chemical behavior of water and hydrocarbons under extreme pressures and temperatures lies at the heart of processes shaping planetary interiors, influences the deep carbon cycle, and underpins innovative high-temperature, high-pressure material synthesis. Recent experiments have shown that simple hydrocarbons immersed in water under extreme conditions transform into heavier hydrocarbons and nanodiamonds. However, the chemistry of water in these regimes, and its role in driving hydrocarbon condensation, remain poorly understood. Here, using atomistic simulations techniques, we show that water under extreme conditions acts like a strong superacid, protonating hydrocarbons and forming transient pentacoordinated carbocations such as CH

Indexed as

Ab initio molecular dynamicsCH5+ formation in waterHydrocarbon chemistry under extreme conditionsMachine learning potentialsSuperacid chemistry

Identifiers

PMID41305893
PMCPMC12811670

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.