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Livshits E, Bittner DM, Trost F, Meister S, Lindenblatt H, Treusch R, Gope K, Pfeifer T, Baer R, Moshammer R, Strasser D. Symmetry-breaking dynamics of a photoionized carbon dioxide dimer. Nat Commun 2024; 15:6322. [PMID: 39060261 PMCID: PMC11282275 DOI: 10.1038/s41467-024-50759-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 07/18/2024] [Indexed: 07/28/2024] Open
Abstract
Photoionization can initiate structural reorganization of molecular matter and drive formation of new chemical bonds. Here, we used time-resolved extreme ultraviolet (EUV) pump - EUV probe Coulomb explosion imaging of carbon dioxide dimer ionC O 2 2 + dynamics, that combined with ab initio molecular dynamics simulations, revealed unexpected asymmetric structural rearrangement. We show that ionization by the pump pulse induces rearrangement from the slipped-parallel (C2h) geometry of the neutral C O 2 dimer towards a T-shaped (C2v) structure on the ~100 fs timescale, although the most stable slipped-parallel (C2h) structure of the ionic dimer. Moreover, we find that excited states of the ionized C O 2 dimer can exhibit formation of aCO 3 moiety in theC 2 O 4 + complex that can persist even after a suitably time-delayed second photoionization in a metastableC 2 O 4 2 + dication. Our results suggest that charge asymmetry plays an important role in the ionization-induced dynamics in such dimers that are present in C O 2 rich environments.
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Affiliation(s)
- Ester Livshits
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, Israel
- Fritz Haber Research Center for Molecular Dynamics, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Dror M Bittner
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Florian Trost
- Max Planck Institute for Nuclear Physics, Heidelberg, Germany
| | - Severin Meister
- Max Planck Institute for Nuclear Physics, Heidelberg, Germany
| | | | - Rolf Treusch
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - Krishnendu Gope
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, Israel
- IISER-Thiruvananthapuram, Vithura, Kerala, 695551, India
| | - Thomas Pfeifer
- Max Planck Institute for Nuclear Physics, Heidelberg, Germany
| | - Roi Baer
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, Israel.
- Fritz Haber Research Center for Molecular Dynamics, The Hebrew University of Jerusalem, Jerusalem, Israel.
| | | | - Daniel Strasser
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, Israel.
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Koyama M, Muramatsu S, Hirokawa Y, Iriguchi J, Matsuyama A, Inokuchi Y. Correlation of the Charge Resonance Interaction with Cluster Conformations Probed by Electronic Spectroscopy of Dimer Radical Cations of CO 2 and CS 2 in a Cryogenic Ion Trap. J Phys Chem Lett 2024; 15:1493-1499. [PMID: 38295367 DOI: 10.1021/acs.jpclett.3c03500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
Radical cations of dimeric clusters of carbon dioxide/disulfide, [(CX2)2]+• (X = O and S), form strong intracluster bonds through charge resonance (CR) interactions. We herein performed electronic photodissociation spectroscopy of [(CX2)2]+• while regulating the temperature under ambient and cryogenic conditions using a quadrupole ion trap. Both ions exhibited broad band absorption in the near-infrared-visible light region; it is called the "CR band", as a measure of the strength of the CR interaction. Strikingly, this band underwent a noticeable blue shift upon cryogenic cooling for [(CS2)2]+• while not for [(CO2)2]+•. On the basis of quantum chemical calculations with a coupled cluster method, the band shift was attributed to the variations in the relative population of two energetically close conformers found for [(CS2)2]+•. This study highlights a strong correlation between CR interactions and conformation of the radical dimer cations, demonstrating the exceptional significance of cryogenic cooling in the chemistry of ionic molecular clusters.
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Affiliation(s)
- Masahiro Koyama
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8526, Japan
| | - Satoru Muramatsu
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8526, Japan
| | - Yasuaki Hirokawa
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8526, Japan
| | - Jidai Iriguchi
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8526, Japan
| | - Akihito Matsuyama
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8526, Japan
| | - Yoshiya Inokuchi
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8526, Japan
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3
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Guo H, Worth G, Domcke W. Quantum dynamics with ab initio potentials. J Chem Phys 2021; 155:080401. [PMID: 34470339 DOI: 10.1063/5.0066234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Hua Guo
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - Graham Worth
- Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom
| | - Wolfgang Domcke
- Department of Chemistry, Technical University of Munich, D-85747 Garching, Germany
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