Autoionization spectra of CH2Cl2 and CD2Cl2 molecules after Cl 2p excitation are studied. The two molecular and atomic Auger transitions are examined and assigned. The contribution of atomic Auger transitions is lower in the deuterated molecule. In addition, to support the presence of the ultrafast dissociation mechanism in the dichloromethane molecule, a series of high-level ab initio quantum mechanical calculations were performed at multiconfigurational self-consistent field (MCSCF) and multireference configuration interaction (MRCI) levels of theory. Minimum energy pathways for the dissociation of the dichloromethane molecule have been calculated by taking into account the spin-orbit splitting between the singlet and triplet transitions in the Cl 2p edge.
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7 August 2018
Research Article|
August 02 2018
Atomic versus molecular Auger decay in CH2Cl2 and CD2Cl2 molecules Available to Purchase
A. C. F. Santos
;
A. C. F. Santos
1
Instituto de Física, Universidade Federal do Rio de Janeiro
, 21941-972 Rio de Janeiro, RJ, Brazil
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D. N. Vasconcelos;
D. N. Vasconcelos
1
Instituto de Física, Universidade Federal do Rio de Janeiro
, 21941-972 Rio de Janeiro, RJ, Brazil
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M. A. MacDonald;
M. A. MacDonald
2
Canadian Light Source, Inc.
, Saskatoon, Saskatchewan S7N 2V3, Canada
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M. M. Sant’Anna
;
M. M. Sant’Anna
1
Instituto de Física, Universidade Federal do Rio de Janeiro
, 21941-972 Rio de Janeiro, RJ, Brazil
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B. N. C. Tenório
;
B. N. C. Tenório
3
Instituto de Química, Universidade Federal do Rio de Janeiro
, 21941-909 Rio de Janeiro, RJ, Brazil
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A. B. Rocha
;
A. B. Rocha
3
Instituto de Química, Universidade Federal do Rio de Janeiro
, 21941-909 Rio de Janeiro, RJ, Brazil
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V. Morcelle;
V. Morcelle
4
Departamento de Física, Universidade Federal Rural do Rio de Janeiro
, CEP 23890-000 Seropédica, RJ, Brazil
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N. Appathurai;
N. Appathurai
2
Canadian Light Source, Inc.
, Saskatoon, Saskatchewan S7N 2V3, Canada
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L. Zuin
L. Zuin
2
Canadian Light Source, Inc.
, Saskatoon, Saskatchewan S7N 2V3, Canada
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A. C. F. Santos
1
D. N. Vasconcelos
1
M. A. MacDonald
2
M. M. Sant’Anna
1
B. N. C. Tenório
3
A. B. Rocha
3
V. Morcelle
4
N. Appathurai
2
L. Zuin
2
1
Instituto de Física, Universidade Federal do Rio de Janeiro
, 21941-972 Rio de Janeiro, RJ, Brazil
2
Canadian Light Source, Inc.
, Saskatoon, Saskatchewan S7N 2V3, Canada
3
Instituto de Química, Universidade Federal do Rio de Janeiro
, 21941-909 Rio de Janeiro, RJ, Brazil
4
Departamento de Física, Universidade Federal Rural do Rio de Janeiro
, CEP 23890-000 Seropédica, RJ, Brazil
J. Chem. Phys. 149, 054303 (2018)
Article history
Received:
March 23 2018
Accepted:
July 17 2018
Citation
A. C. F. Santos, D. N. Vasconcelos, M. A. MacDonald, M. M. Sant’Anna, B. N. C. Tenório, A. B. Rocha, V. Morcelle, N. Appathurai, L. Zuin; Atomic versus molecular Auger decay in CH2Cl2 and CD2Cl2 molecules. J. Chem. Phys. 7 August 2018; 149 (5): 054303. https://doi.org/10.1063/1.5030644
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