ArticleNature communications2025
Real-time observation of the diffusion-limited formation of a cation-molecule complex.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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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.
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.
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Who cites it
1 citing paper in PubMed.
- Cryogenic Bottom-up Formation of the Benzene Cation from Acetylene in Helium Nanodroplets.Journal of the American Chemical Society · 2026Article
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Authors and funding
6 authors.
Funding
Abstract
For two molecules or atoms to react, they must first move towards each other and then, upon meeting, form new chemical bonds. Ultrafast spectroscopy and diffraction techniques have illuminated the bond-formation step for example by triggering reactions from weakly-bound precursors but not the initial approach, typically attributed to diffusion, although this is often the step that determines the reaction rate. Here, we measure and control the diffusion time for the reaction where a Li⁺ ion forms a complex with a benzene dimer, a textbook cation-π system, inside a liquid helium nanodroplet. Using femtosecond-timed Coulomb explosion, we find that Li⁺, initially at the droplet surface over 30 Å from the dimer, first solvates, then diffuses ballistically at 43 m/s and finally reacts. These results, rationalized by ring-polymer molecular dynamics simulations, pave the way for real-time imaging of stereodynamics in ion-molecule reactions.
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Registered trials
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.