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Holland DMP, Suchan J, Janoš J, Bacellar C, Leroy L, Barillot TR, Longetti L, Coreno M, de Simone M, Grazioli C, Chergui M, Muchová E, Ingle RA. Deconvolution of the X-ray absorption spectrum of trans-1,3-butadiene with resonant Auger spectroscopy. Phys Chem Chem Phys 2024; 26:15130-15142. [PMID: 38525924 DOI: 10.1039/d4cp00053f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
High-resolution carbon K-edge X-ray photoelectron, X-ray absorption, non-resonant and resonant Auger spectra are presented of gas phase trans-1,3-butadiene alongside a detailed theoretical analysis utilising nuclear ensemble approaches and vibronic models to simulate the spectroscopic observables. The resonant Auger spectra recorded across the first pre-edge band reveal a complex evolution of different electronic states which remain relatively well-localised on the edge or central carbon sites. The results demonstrate the sensitivity of the resonant Auger observables to the weighted contributions from multiple electronic states. The gradually evolving spectral features can be accurately and feasibly simulated within nuclear ensemble methods and interpreted with the population analysis.
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Affiliation(s)
- David M P Holland
- STFC, Daresbury Laboratory, Daresbury, Warrington, Cheshire WA4 4AD, UK
| | - Jiří Suchan
- Institute for Advanced Computational Science, Stony Brook University, Stony Brook, New York 11794-5250, USA
| | - Jiří Janoš
- Department of Physical Chemistry, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic.
| | - Camila Bacellar
- Laboratoire de Spectroscopie Ultrarapide, Ecole Polytechnique Fédérale de Lausanne, ISIC, FSB, CH-1015 Lausanne, Switzerland
| | - Ludmila Leroy
- Laboratoire de Spectroscopie Ultrarapide, Ecole Polytechnique Fédérale de Lausanne, ISIC, FSB, CH-1015 Lausanne, Switzerland
| | - Thomas R Barillot
- Laboratoire de Spectroscopie Ultrarapide, Ecole Polytechnique Fédérale de Lausanne, ISIC, FSB, CH-1015 Lausanne, Switzerland
| | - Luca Longetti
- Laboratoire de Spectroscopie Ultrarapide, Ecole Polytechnique Fédérale de Lausanne, ISIC, FSB, CH-1015 Lausanne, Switzerland
| | - Marcello Coreno
- ISM-CNR, Istituto di Struttura dei Materiali, LD2 Unit, 34149 Trieste, Italy
| | | | - Cesare Grazioli
- IOM-CNR, Istituto Officina dei Materiali, 34149 Trieste, Italy
| | - Majed Chergui
- Laboratoire de Spectroscopie Ultrarapide, Ecole Polytechnique Fédérale de Lausanne, ISIC, FSB, CH-1015 Lausanne, Switzerland
- Elettra-Sincrotrone Trieste S.C.p.A., S.S. 14 km 163,5 in Area Science Park, I-34012 Basovizza, Trieste, Italy
| | - Eva Muchová
- Department of Physical Chemistry, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic.
| | - Rebecca A Ingle
- Department of Chemistry, 20 Gordon Street, London, WC1H 0AJ, UK.
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Fouda AEA, Koulentianos D, Young L, Doumy G, Ho PJ. Resonant double-core excitations with ultrafast, intense X-ray pulses. Mol Phys 2022. [DOI: 10.1080/00268976.2022.2133749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Adam E. A. Fouda
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, USA
| | - Dimitris Koulentianos
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, USA
| | - Linda Young
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, USA
- Department of Physics and James Franck Institute, The University of Chicago, Chicago, IL, USA
| | - Gilles Doumy
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, USA
| | - Phay J. Ho
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, USA
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Coutinho LH, de A Ribeiro F, Tenorio BNC, Coriani S, Dos Santos ACF, Nicolas C, Milosavljevic AR, Bozek JD, Wolff W. NEXAFS and MS-AES spectroscopy of the C 1s and Cl 2p excitation and ionization of chlorobenzene: Production of dicationic species. Phys Chem Chem Phys 2021; 23:27484-27497. [PMID: 34873605 DOI: 10.1039/d1cp03121j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report on single- and double-charge photofragment formation by synchrotron radiation, following C 1s core excitation and ionization and Cl 2p inner excitation and ionization of chlorobenzene, C6H5Cl. From a comparison of experimental near-edge X-ray absorption fine structure spectra and theoretical ab initio calculations, the nature of various core and inner shell transitions of the molecule and pure atomic features were identified. To shed light on the normal Auger processes following excitation or ionization of the molecule at the Cl 2p or C 1s sites, we addressed the induced ionic species formation. With energy resolved electron spectra and ion time-of-flight spectra coincidence measurements, the ionic species were correlated with binding energy regions and initial states of vacancies. We explored the formation of the molecular dication C6H5Cl2+, the analogue benzene dication C6H42+, and the singly charged species produced by single loss of a carbon atom, C5HnCl+. The appearance and intensities of the spectral features associated with these ionic species are shown to be strongly site selective and dependent on the energy ranges of the Auger electron emission. Unexpected intensities for the analogue double charged benzene C6H42+ ion were observed with fast Auger electrons. The transitions leading to C6H5Cl2+ were identified from the binding energy representation of high resolution electron energy spectra. Most C6H5Cl2+ ions decay into two singly charged moieties, but intermediate channels are opened leading to other heavy dicationic species, C6H42+ and C6H4Cl2+, the channel leading to the first of these being much more favored than the other.
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Affiliation(s)
- Lúcia H Coutinho
- Physics Institute, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-972, Brazil.
| | | | - Bruno N C Tenorio
- Department of Chemistry, Technical University of Denmark, Kongens Lyngby, 2800, Denmark
| | - Sonia Coriani
- Department of Chemistry, Technical University of Denmark, Kongens Lyngby, 2800, Denmark
| | - Antonio C F Dos Santos
- Physics Institute, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-972, Brazil.
| | | | | | - John D Bozek
- Synchrotron SOLEIL, Gif-sur-Yvette, 91192, France
| | - Wania Wolff
- Physics Institute, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-972, Brazil.
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Fouda AEA, Ho PJ. Site-specific generation of excited state wavepackets with high-intensity attosecond x rays. J Chem Phys 2021; 154:224111. [PMID: 34241215 DOI: 10.1063/5.0050891] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
High-intensity attosecond x rays can produce coherent superpositions of valence-excited states through two-photon Raman transitions. The broad-bandwidth, high-field nature of the pulses results in a multitude of accessible excited states. Multiconfigurational quantum chemistry with the time-dependent Schrödinger equation is used to examine population transfer dynamics in stimulated x-ray Raman scattering of the nitric oxide oxygen and nitrogen K-edges. Two pulse schemes initiate wavepackets of different characters and demonstrate how chemical differences between core-excitation pathways affect the dynamics. The population transfer to valence-excited states is found to be sensitive to the electronic structure and pulse conditions, highlighting complexities attributed to the Rabi frequency. The orthogonally polarized two-color-pulse setup has increased selectivity while facilitating longer, less intense pulses than the one-pulse setup. Population transfer in the 1s → Rydberg region is more effective but less selective at the nitrogen K-edge; the selectivity is reduced by double core-excited states. Result interpretation is aided by resonant inelastic x-ray scattering maps.
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Affiliation(s)
- Adam E A Fouda
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S Cass Avenue, Lemont, Illinois 60439, USA
| | - Phay J Ho
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S Cass Avenue, Lemont, Illinois 60439, USA
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