Crossed beam study of the atom-radical reaction of ground state carbon atoms (C(3P)) with the vinyl radical (C2H3(X2A′))

Literature Information

Publication Date 2011-11-25
DOI 10.1039/C1CP22993A
Impact Factor 3.676
Authors

Antony V. Wilson, Dorian S. N. Parker, Fangtong Zhang, Ralf I. Kaiser


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Abstract

The atom-radical reaction of ground state carbon atoms (C(3P)) with the vinyl radical (C2H3(X2A′)) was conducted under single collision conditions at a collision energy of 32.3 ± 2.9 kJ mol−1. The reaction dynamics were found to involve a complex forming reaction mechanism, which is initiated by the barrier-less addition of atomic carbon to the carbon–carbon-double bond of the vinyl radical forming a cyclic C3H3 radical intermediate. The latter has a lifetime of at least 1.5 times its rotational period and decomposes via a tight exit transition state located about 45 kJ mol−1 above the separated products through atomic hydrogen loss to the cyclopropenylidene isomer (c-C3H2) as detected toward cold molecular clouds and in star forming regions.

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DOI: 10.1039/C5CP90069G

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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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