Abstract
Although the dissociative electron transfer reactions between protons and carbon dioxide are endothermic by 0.19-9.1 eV, the reactions have a large total cross section at low keV collision energies. The results are quantitatively modelled in terms of the modified Strueckelberg-Demkov mechanism for the non-crossing of reactant and product diabatic potential energy curves. Charge transfer to give the ground state of CO+2 occurs at 4.05-4.26 Å. The H atom and CO+2 formed may then suffer a non-crossing excitation at 1.6-2.1 Å during the evolution of a single-collision event, to produce the excited CO+2. The experimental results cannot be interpreted by a curve crossing mechanism of the Landau-Zener type. © 1987.
Original language | English |
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Pages (from-to) | 307-312 |
Number of pages | 6 |
Journal | Chemical Physics |
Volume | 111 |
Issue number | 2 |
Publication status | Published - 15 Jan 1987 |
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The charge transfer reactions of protons with carbon dioxide : A two-state treatment. / Johnson, C. A F; Parker, J. E.
In: Chemical Physics, Vol. 111, No. 2, 15.01.1987, p. 307-312.Research output: Contribution to journal › Article
TY - JOUR
T1 - The charge transfer reactions of protons with carbon dioxide
T2 - A two-state treatment
AU - Johnson, C. A F
AU - Parker, J. E.
PY - 1987/1/15
Y1 - 1987/1/15
N2 - Although the dissociative electron transfer reactions between protons and carbon dioxide are endothermic by 0.19-9.1 eV, the reactions have a large total cross section at low keV collision energies. The results are quantitatively modelled in terms of the modified Strueckelberg-Demkov mechanism for the non-crossing of reactant and product diabatic potential energy curves. Charge transfer to give the ground state of CO+2 occurs at 4.05-4.26 Å. The H atom and CO+2 formed may then suffer a non-crossing excitation at 1.6-2.1 Å during the evolution of a single-collision event, to produce the excited CO+2. The experimental results cannot be interpreted by a curve crossing mechanism of the Landau-Zener type. © 1987.
AB - Although the dissociative electron transfer reactions between protons and carbon dioxide are endothermic by 0.19-9.1 eV, the reactions have a large total cross section at low keV collision energies. The results are quantitatively modelled in terms of the modified Strueckelberg-Demkov mechanism for the non-crossing of reactant and product diabatic potential energy curves. Charge transfer to give the ground state of CO+2 occurs at 4.05-4.26 Å. The H atom and CO+2 formed may then suffer a non-crossing excitation at 1.6-2.1 Å during the evolution of a single-collision event, to produce the excited CO+2. The experimental results cannot be interpreted by a curve crossing mechanism of the Landau-Zener type. © 1987.
UR - http://www.scopus.com/inward/record.url?scp=0342557919&partnerID=8YFLogxK
M3 - Article
VL - 111
SP - 307
EP - 312
JO - Chemical Physics
JF - Chemical Physics
SN - 0301-0104
IS - 2
ER -