ArticleNature chemistry2022
Ambient-light-induced intermolecular Coulombic decay in unbound pyridine monomers.
Article in Nature chemistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 19 citations in OpenAlex.
- Intermolecular Coulombic decay in liquid water competes with proton transfer and non-adiabatic relaxation.Nature communications · 2025Article
- Prebiotic chemical origin of biomolecular complementarity.Communications chemistry · 2023Review
- Molecular growth of PANH via intermolecular Coulombic decay.Science advances · 2023Article
- Spatial mapping of low pressure cluster jets using Rayleigh scattering.Scientific reports · 2023Article
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Authors and funding
6 authors at 3 institutions in 1 country.
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Abstract
Intermolecular Coulombic decay (ICD) is a process whereby photoexcited molecules relax by ionizing their neighbouring molecules. ICD is efficient when intermolecular interactions are active and consequently it is observed only in weakly bound systems, such as clusters and hydrogen-bonded systems. Here we report an efficient ICD between unbound molecules excited at ambient-light intensities. On the photoexcitation of gas-phase pyridine monomers, well below the ionization threshold and at low laser intensities, we detected the parent and heavier-than-parent cations. The isotropic emission of slow electrons revealed ICD as the underlying process. π-π* excitation in unbounded pyridine monomers triggered an associative interaction between them, which leads to an efficient three-centre ICD. The cation resulting from the molecular association of the three pyridine centres relaxed through fragmentation. This below-threshold ionization under ambient light has implications for the understanding of radiation damage and astrochemistry.
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