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Gas-Phase vs. Grain-Surface Formation of Interstellar Complex Organic Molecules: A Comprehensive Quantum-Chemical Study

Gas-Phase vs. Grain-Surface Formation of Interstellar Complex Organic Molecules: A Comprehensive Quantum-Chemical Study

por Albert Rimola | Ene 24, 2024 | Publication

The fundamental differences between gas-phase and grain-surface chemistry is highlighted by simulating the formation routes of representative iCOMs occurring within these two scenarios. Several organic chemical compounds (the so-called interstellar complex organic...
Single-atom catalysis in space: Computational exploration of Fischer–Tropsch reactions in astrophysical environments

Single-atom catalysis in space: Computational exploration of Fischer–Tropsch reactions in astrophysical environments

por Gerard Pareras | Dic 11, 2023 | Publication

True catalysis in space! Simulations indicate that methanol can form through Fischer-Tropsch synthesis in astrophysical environments by single atom Fe on silica. Fundamental and aplied knowledge at once!. Gas-phase chemistry at extreme conditions (low densities and...
Synthesis of urea on the surface of interstellar water ice clusters. A quantum chemical study

Synthesis of urea on the surface of interstellar water ice clusters. A quantum chemical study

por Albert Rimola | Nov 4, 2023 | Publication

Amides, such as urea, are key molecules in prebiotic chemistry because they possess the C-N bond, which is also found in amino acids and nucleobases. Urea has been detected in a few sources in the interstellar medium, raising questions about its synthesis. We...
Oort cloud perturbations as a source of hyperbolic Earth impactors

Oort cloud perturbations as a source of hyperbolic Earth impactors

por Albert Rimola | Nov 4, 2023 | Publication

Our latest research focuses on the analysis of an unusual grazing meteor, FH1, detected by the Finnish Fireball Network in October 2022. The meteoroid, with cm-sized dimensions, exhibited an inbound hyperbolic orbit and asteroidal consistency. Our findings suggest...
Formation of interstellar complex organic molecules on water-rich ices triggered by atomic carbon freezing

Formation of interstellar complex organic molecules on water-rich ices triggered by atomic carbon freezing

por Albert Rimola | Nov 4, 2023 | Publication

Atomic carbon gets chemisorbed with a water molecule when lands on water ice surfaces. The formed species can easily react with open-shell species, opening new synthetic paths towards forming interstellar complex organic molecules. The reactivity of interstellar...
Adsorption of HCN on cosmic silicates: a periodic quantum mechanical study

Adsorption of HCN on cosmic silicates: a periodic quantum mechanical study

por Albert Rimola | Oct 4, 2023 | Publication

Thanks to their acid-bases features, silicate surfaces can efficiently activate the chemical bonds of HCN and favor the formation of nucleophilic CN- species, hence triggering the prebiotic polymerization of HCN to nucleobases in astronomical environments. Hydrogen...
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