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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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Rolles D, Prümper G, Fukuzawa H, Liu XJ, Pesić ZD, Fink RF, Grum-Grzhimailo AN, Dumitriu I, Berrah N, Ueda K. Molecular-frame angular distributions of resonant CO:C(1s) Auger electrons. PHYSICAL REVIEW LETTERS 2008; 101:263002. [PMID: 19437639 DOI: 10.1103/physrevlett.101.263002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The molecular-frame angular distributions of resonantly excited CO:C(1s) --> pi* Auger electrons were determined using angle-resolved electron-ion coincidence spectroscopy in combination with a novel transformation procedure. Our new methodology yields full three-dimensional electron angular distributions with high energy resolution from the measurement of electrons at only two angles. The experimentally determined distributions are well reproduced by calculations performed in a simple one-center approximation, allowing an unambiguous identification of several overlapping Auger lines.
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Affiliation(s)
- D Rolles
- Physics Department, Western Michigan University, Kalamazoo, Michigan 49008, USA
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Machida M, Lavollée M, Randrianjafisoa J, Laurent G, Nagoshi M, Okada K, Koyano I, Saito N. Probe of bending motion following the 1s−1π* excitation of N2O. J Chem Phys 2004; 120:3635-41. [PMID: 15268525 DOI: 10.1063/1.1641783] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The doubly degenerate core-excited Pi state of N2O splits into two due to the static Renner-Teller effect. The lower state, A1, has a bent stable geometry and the molecule excited to this state starts to deform itself toward this bent geometry. To probe the effect of the potential energy surfaces of the core-excited A1 states on the nuclear motion, we measure the momenta of the three atomic ions in coincidence by means of the ion momentum imaging technique. We find that the potential energy surface affects the molecular deformation significantly. N2O in the terminal N 1s(-1)3piA1 excited state is observed to be bent more than that in the central N 1s(-1)3piA1 excited state. This means that N2O in the terminal N 1s(-1)3piA1 excited state bends faster than that in the central N 1s(-1)3piA1 excited state. When the excitation energy is decreased within the 1s(-1)3pi resonances, the nuclear motion in the A1 states becomes faster. This is interpreted by the notion that the excitation occurs onto the steeper slope part of the potential energy surface of the excited state for the lower excitation energy. The branching ratio of the A1 excitation increases with the decrease in the excitation energy.
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Affiliation(s)
- M Machida
- Department of Materials Science, Himeji Institute of Technology, Kamigori, Hyogo 678-1297, Japan
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Muramatsu Y, Shimizu Y, Yoshida H, Okada K, Saito N, Koyano I, Tanaka H, Ueda K. Nuclear motion in the O 1s−12πu core-excited states of CO2 probed by sub-natural-width resonant Auger emission spectroscopy. Chem Phys Lett 2000. [DOI: 10.1016/s0009-2614(00)01086-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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