1
|
Panchagnula S, Kamer J, Candian A, Hrodmarsson HR, Linnartz H, Bouwman J, Tielens AGGM. Laser-induced fragmentation of coronene cations. Phys Chem Chem Phys 2024; 26:18557-18570. [PMID: 38884178 DOI: 10.1039/d4cp01301h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
Polycyclic aromatic hydrocarbons are an important component of the interstellar medium of galaxies and photochemistry plays a key role in the evolution of these species in space. Here, we explore the photofragmentation behaviour of the coronene cation (C24H12˙+) using time-of-flight mass spectrometry. The experiments show photodissociation fragmentation channels including the formation of bare carbon clusters (Cn˙+) and hydrocarbon chains (CnHx+). The mass spectrum of coronene is dominated by peaks from C11˙+ and C7H+. Density functional theory was used to calculate relative energies, potential dissociation pathways, and possible structures for relevant species. We identify 6-6 → 5-7 ring isomerisation as a key step in the formation of both the bare carbon clusters and the hydrocarbon chains observed in this study. We present the dissociation mechanism outlined here as a potential formation route for C60 and other astrochemically relevant species.
Collapse
Affiliation(s)
- Sanjana Panchagnula
- Laboratory for Astrophysics, Leiden Observatory, Leiden University, 2300 RA, Leiden, The Netherlands.
- Leiden Observatory, Leiden University, 2300 RA, Leiden, The Netherlands
| | - Jerry Kamer
- Laboratory for Astrophysics, Leiden Observatory, Leiden University, 2300 RA, Leiden, The Netherlands.
| | - Alessandra Candian
- Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Helgi R Hrodmarsson
- Laboratory for Astrophysics, Leiden Observatory, Leiden University, 2300 RA, Leiden, The Netherlands.
| | - Harold Linnartz
- Laboratory for Astrophysics, Leiden Observatory, Leiden University, 2300 RA, Leiden, The Netherlands.
| | - Jordy Bouwman
- Laboratory for Astrophysics, Leiden Observatory, Leiden University, 2300 RA, Leiden, The Netherlands.
| | - Alexander G G M Tielens
- Leiden Observatory, Leiden University, 2300 RA, Leiden, The Netherlands
- Department of Astronomy, University of Maryland, College Park, MD 20742-2421, USA
| |
Collapse
|
2
|
Iwamoto K, Inoue G, Matsubara H. Structural analysis of C 8H 6˙ + fragment ion from quinoline using ion-mobility spectrometry/mass spectrometry. Phys Chem Chem Phys 2024; 26:17205-17212. [PMID: 38855902 DOI: 10.1039/d4cp01676a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
This study investigated the structures of fragment ions derived from the quinoline (C9H7N) radical cation using ion-mobility spectrometry and mass spectrometry. Ion mobility and mass analysis revealed that C8H6˙+ is the primary dissociation product resulting from the loss of HCN during collision-induced dissociation of the quinoline radical cation. The reduced mobility (K0) of the C8H6˙+ fragment product in helium gas was measured over a range of reduced electric fields (E/N = 20.8-27.4 Td) at room temperature. The experimental K0 values indicated that C8H6˙+ is a mixture of phenylacetylene and pentalene radical cations. Furthermore, quantum chemical calculations revealed two potential energy surfaces delineating the loss of HCN from the quinoline radical cation to form phenylacetylene radical cations.
Collapse
Affiliation(s)
- Kenichi Iwamoto
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuencho Nakaku, Sakai, Osaka 599-8531, Japan.
- Department of Chemistry, Graduate School of Science, Osaka Metropolitan University, 1-1 Gakuencho Nakaku, Sakai, Osaka 599-8531, Japan
| | - Genki Inoue
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuencho Nakaku, Sakai, Osaka 599-8531, Japan.
| | - Hiroshi Matsubara
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuencho Nakaku, Sakai, Osaka 599-8531, Japan.
- Department of Chemistry, Graduate School of Science, Osaka Metropolitan University, 1-1 Gakuencho Nakaku, Sakai, Osaka 599-8531, Japan
| |
Collapse
|
3
|
Rapacioli M, Buey MY, Spiegelman F. Addressing electronic and dynamical evolution of molecules and molecular clusters: DFTB simulations of energy relaxation in polycyclic aromatic hydrocarbons. Phys Chem Chem Phys 2024; 26:1499-1515. [PMID: 37933901 PMCID: PMC10793726 DOI: 10.1039/d3cp02852f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 10/17/2023] [Indexed: 11/08/2023]
Abstract
We present a review of the capabilities of the density functional based Tight Binding (DFTB) scheme to address the electronic relaxation and dynamical evolution of molecules and molecular clusters following energy deposition via either collision or photoabsorption. The basics and extensions of DFTB for addressing these systems and in particular their electronic states and their dynamical evolution are reviewed. Applications to PAH molecules and clusters, carbonaceous systems of major interest in astrochemical/astrophysical context, are reported. A variety of processes are examined and discussed such as collisional hydrogenation, fast collisional processes and induced electronic and charge dynamics, collision-induced fragmentation, photo-induced fragmentation, relaxation in high electronic states, electronic-to-vibrational energy conversion and statistical versus non-statistical fragmentation. This review illustrates how simulations may help to unravel different relaxation mechanisms depending on various factors such as the system size, specific electronic structure or excitation conditions, in close connection with experiments.
Collapse
Affiliation(s)
- Mathias Rapacioli
- Laboratoire de Chimie et Physique Quantique (LCPQ/FERMI), UMR5626, Université de Toulouse (UPS) and CNRS, 118 Route de Narbonne, F-31062 Toulouse, France.
| | - Maysa Yusef Buey
- Laboratoire de Chimie et Physique Quantique (LCPQ/FERMI), UMR5626, Université de Toulouse (UPS) and CNRS, 118 Route de Narbonne, F-31062 Toulouse, France.
| | - Fernand Spiegelman
- Laboratoire de Chimie et Physique Quantique (LCPQ/FERMI), UMR5626, Université de Toulouse (UPS) and CNRS, 118 Route de Narbonne, F-31062 Toulouse, France.
| |
Collapse
|
4
|
Rossi C, Muller G, Thissen R, Romanzin C, Alcaraz C, Gondarry S, Mayer PM, Jacovella U. New light on the imbroglio surrounding the C 8H +6 isomers formed from ionized azulene and naphthalene using ion-molecule reactions. Chem Sci 2023; 15:317-327. [PMID: 38131094 PMCID: PMC10731908 DOI: 10.1039/d3sc03015f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 11/14/2023] [Indexed: 12/23/2023] Open
Abstract
Most polycyclic aromatic hydrocarbons (PAHs) can isomerize with internal energies near to or below the dissociation threshold. The C10H+8 group of ions, made up of the naphthalene (Naph+) and the azulene (Azu+) radical cations, is a prototypical example. C8H+6 isomers are important species in the growth kinetics and formation of complex organic molecules, and more generally fragments from larger PAHs, yet information about C8H+6 structures is scarce and contradictory. Here, ion-molecule reactions were carried out and the tunable photoionization chemical monitoring technique was used to probe the C8H+6 isomers formed upon C2H2-loss from Naph+ and Azu+. The experimental findings were interpreted with the support of ab initio and kinetics calculations. To facilitate the interpretation of these data, chemical reactivity starting from phenylacetylene (PA) was studied. It was found that most of the C8H+6 ions formed from C10H8, in a timescale of 40 μs, are PA+ in the vicinity of the dissociation threshold. No evidence of the pentalene radical cation (PE+) was observed and explanations to reconcile previous results are presented.
Collapse
Affiliation(s)
- Corentin Rossi
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay 91405 Orsay France
| | - Giel Muller
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong Wollongong New South Wales 2522 Australia
| | - Roland Thissen
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR8000 91405 Orsay France
- Synchrotron SOLEIL L'Orme des Merisiers, 91192 Saint Aubin, Gif-sur-Yvette France
| | - Claire Romanzin
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR8000 91405 Orsay France
- Synchrotron SOLEIL L'Orme des Merisiers, 91192 Saint Aubin, Gif-sur-Yvette France
| | - Christian Alcaraz
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR8000 91405 Orsay France
- Synchrotron SOLEIL L'Orme des Merisiers, 91192 Saint Aubin, Gif-sur-Yvette France
| | - Sandesh Gondarry
- Department of Chemistry and Biomolecular Sciences, University of Ottawa Ottawa K1N 6N5 Canada
| | - Paul M Mayer
- Department of Chemistry and Biomolecular Sciences, University of Ottawa Ottawa K1N 6N5 Canada
| | - Ugo Jacovella
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay 91405 Orsay France
| |
Collapse
|
5
|
Salomon G, Tarrat N, Schön JC, Rapacioli M. Low-Energy Transformation Pathways between Naphthalene Isomers. Molecules 2023; 28:5778. [PMID: 37570748 PMCID: PMC10420886 DOI: 10.3390/molecules28155778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 07/26/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
The transformation pathways between low-energy naphthalene isomers are studied by investigating the topology of the energy landscape of this astrophysically relevant molecule. The threshold algorithm is used to identify the minima basins of the isomers on the potential energy surface of the system and to evaluate the probability flows between them. The transition pathways between the different basins and the associated probabilities were investigated for several lid energies up to 11 eV, this value being close to the highest photon energy in the interstellar medium (13.6 eV). More than a hundred isomers were identified and a set of 23 minima was selected among them, on the basis of their energy and probability of occurrence. The return probabilities of these 23 minima and the transition probabilities between them were computed for several lid energies up to 11 eV. The first connection appeared at 3.5 eV while all minima were found to be connected at 9.5 eV. The local density of state was also sampled inside their respective basins. This work gives insight into both energy and entropic barriers separating the different basins, which also provides information about the transition regions of the energy landscape.
Collapse
Affiliation(s)
- Grégoire Salomon
- ISAE-SUPAERO, 10 Avenue Édouard-Belin BP 54032, 31055 Toulouse CEDEX 4, France
- CEMES, Université de Toulouse, CNRS, 29 Rue Jeanne Marvig, 31055 Toulouse, France
- MPI for Solid State Research, Heisenbergstr. 1, D-70569 Stuttgart, Germany
- Laboratoire de Chimie et Physique Quantiques LCPQ/IRSAMC, UMR5626, Université de Toulouse (UPS) and CNRS, 31062 Toulouse, France
| | - Nathalie Tarrat
- CEMES, Université de Toulouse, CNRS, 29 Rue Jeanne Marvig, 31055 Toulouse, France
| | - J. Christian Schön
- MPI for Solid State Research, Heisenbergstr. 1, D-70569 Stuttgart, Germany
| | - Mathias Rapacioli
- Laboratoire de Chimie et Physique Quantiques LCPQ/IRSAMC, UMR5626, Université de Toulouse (UPS) and CNRS, 31062 Toulouse, France
| |
Collapse
|
6
|
Lee JWL, Stockett MH, Ashworth EK, Navarro Navarrete JE, Gougoula E, Garg D, Ji M, Zhu B, Indrajith S, Zettergren H, Schmidt HT, Bull JN. Cooling dynamics of energized naphthalene and azulene radical cations. J Chem Phys 2023; 158:2887564. [PMID: 37125715 DOI: 10.1063/5.0147456] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 04/12/2023] [Indexed: 05/02/2023] Open
Abstract
Naphthalene and azulene are isomeric polycyclic aromatic hydrocarbons (PAHs) and are topical in the context of astrochemistry due to the recent discovery of substituted naphthalenes in the Taurus Molecular Cloud-1 (TMC-1). Here, the thermal- and photo-induced isomerization, dissociation, and radiative cooling dynamics of energized (vibrationally hot) naphthalene (Np+) and azulene (Az+) radical cations, occurring over the microsecond to seconds timescale, are investigated using a cryogenic electrostatic ion storage ring, affording "molecular cloud in a box" conditions. Measurement of the cooling dynamics and kinetic energy release distributions for neutrals formed through dissociation, until several seconds after hot ion formation, are consistent with the establishment of a rapid (sub-microsecond) Np+ ⇌ Az+ quasi-equilibrium. Consequently, dissociation by C2H2-elimination proceeds predominantly through common Az+ decomposition pathways. Simulation of the isomerization, dissociation, recurrent fluorescence, and infrared cooling dynamics using a coupled master equation combined with high-level potential energy surface calculations [CCSD(T)/cc-pVTZ], reproduce the trends in the measurements. The data show that radiative cooling via recurrent fluorescence, predominately through the Np+ D0 ← D2 transition, efficiently quenches dissociation for vibrational energies up to ≈1 eV above dissociation thresholds. Our measurements support the suggestion that small cations, such as naphthalene, may be more abundant in space than previously thought. The strategy presented in this work could be extended to fingerprint the cooling dynamics of other PAH ions for which isomerization is predicted to precede dissociation.
Collapse
Affiliation(s)
- Jason W L Lee
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - Mark H Stockett
- Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - Eleanor K Ashworth
- School of Chemistry, Norwich Research Park, University of East Anglia, Norwich NR4 7TJ, United Kingdom
| | | | - Eva Gougoula
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - Diksha Garg
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - MingChao Ji
- Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - Boxing Zhu
- Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | | | | | - Henning T Schmidt
- Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - James N Bull
- School of Chemistry, Norwich Research Park, University of East Anglia, Norwich NR4 7TJ, United Kingdom
| |
Collapse
|
7
|
Jacovella U, Rossi C, Romanzin C, Alcaraz C, Thissen R. Monitoring the Light-induced Isomerisation of the Prototypical Polycyclic Aromatic Hydrocarbons C 10 H 8 + through Ion-Molecule Reactions. Chemphyschem 2023; 24:e202200474. [PMID: 36125423 PMCID: PMC10092717 DOI: 10.1002/cphc.202200474] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/20/2022] [Indexed: 01/20/2023]
Abstract
Structural rearrangements in ions are essential for understanding the composition and evolution of energetic and chemically active environments. This study explores the interconversion routes for simple polycyclic aromatic hydrocarbons, namely naphthalene and azulene radical cations (C10 H8 + ), by combining mass spectrometry and vacuum ultraviolet tunable synchrotron radiation through the chemical monitoring technique. Products of ion-molecule reactions are used to probe C10 H8 + structures that are formed as a function of their internal energies. Isomerisation from azulene radical cation towards naphthalene radical cation in a timescale faster than 80 μs was monitored, whereas no reverse isomerisation was observed in the same time window. When energising C10 H8 + with more than 6 eV, the reactivity of C10 H8 + unveils the formation of a new isomeric group with a contrasted reactivity compared with naphthalene and azulene cations. We tentatively assigned these structures to phenylvinylacetylene cations.
Collapse
Affiliation(s)
- Ugo Jacovella
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405, Orsay, France
| | - Corentin Rossi
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR8000, 91405, Orsay, France
| | - Claire Romanzin
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR8000, 91405, Orsay, France.,Synchrotron SOLEIL, L'Orme des Merisiers, 91192, Saint Aubin, Gif-sur-Yvette, France
| | - Christian Alcaraz
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR8000, 91405, Orsay, France.,Synchrotron SOLEIL, L'Orme des Merisiers, 91192, Saint Aubin, Gif-sur-Yvette, France
| | - Roland Thissen
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR8000, 91405, Orsay, France.,Synchrotron SOLEIL, L'Orme des Merisiers, 91192, Saint Aubin, Gif-sur-Yvette, France
| |
Collapse
|
8
|
Ramanathan K, S. A, Bouwman J, Avaldi L, Vinitha MV, Bolognesi P, Richter R, Kadhane U. Photodissociation of Quinoline Cation: Mapping the Potential Energy Surface. J Chem Phys 2022; 157:064303. [DOI: 10.1063/5.0092161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A detailed exploration of the potential energy surface of quinoline cation (C9H7N ·+) is carried out to extend the present understanding of its fragmentation mechanisms. DFT calculations have been performed to explore new fragmentation mechanisms giving special attention to previously unexplored pathways such as isomerisation and elimination of HNC. The isomerization mechanisms producing 5-7 membered ring intermediates have been described and are found to be a dominant channel both energetically and kinetically. Energetically competing pathways have been established for the astrochemically important HNC-loss channel, which has hitherto never been considered in the context of the loss of a 27 amu fragment from the parent ions. Elimination of acetylene was also studied in great detail. Overall computational results are found to complement the experimental observations from the concurrently conducted PEPICO investigation. These could potentially open the doors for rich and interesting VUV radiation driven chemistry on the planetary atomospheres, meteorites and comets.
Collapse
Affiliation(s)
| | - Arun S.
- Physics, Indian Institute of Space Science and Technology, India
| | - Jordy Bouwman
- University of Colorado Boulder Laboratory for Atmospheric and Space Physics, United States of America
| | - Lorenzo Avaldi
- Istituto di Struttura della Materia (ISM), Consiglio Nazionale delle Ricerche Area della Ricerca di Roma 1, Italy
| | - M. V. Vinitha
- Indian Institute of Space Science and Technology, India
| | - Paola Bolognesi
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche Area della Ricerca di Roma 1, Italy
| | | | | |
Collapse
|
9
|
Kadhane UR, Vinitha MV, Ramanathan K, S. A, Bouwman J, Avaldi L, Bolognesi P, Richter R. Comprehensive survey of dissociative photoionization of quinoline by PEPICO experiments. J Chem Phys 2022; 156:244304. [DOI: 10.1063/5.0092158] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Dissociative photoionization of quinoline induced by vacuum ultraviolet radiation is investigated using photoelectron–photoion coincidence spectroscopy. Branching ratios of all the detectable fragment ions are measured as a function of internal energy ranging from 2 to 30 eV. A specific generation hierarchy is observed in the breakdown curves of a set of dissociation channels. Moreover, a careful comparison of the breakdown curves of fragments among the successive generations allowed to establish a decay sequence in the fragmentation of quinoline cation. This enabled us to revisit and refine the understanding of the first generation decay and reassign the origin of a few of the higher generation decay products of quinoline cation. With the help of the accompanying computational work (reported concurrently), we have demonstrated the dominance of two different HCN elimination pathways over previously interpreted mechanisms. For the first time, a specific pathway for acetylene elimination is identified in quinoline+ and the role of isomerization in both acetylene as well as hydrogen cyanide loss is also demonstrated. The experiment also established that the acetylene elimination exclusively occurs from the non-nitrogen containing rings of quinoline cation. The formation of a few astronomically important species is also discussed.
Collapse
Affiliation(s)
- Umesh R. Kadhane
- Indian Institute of Space Science and Technology, Thiruvananthapuram 695547, Kerala, India
| | - M. V. Vinitha
- Indian Institute of Space Science and Technology, Thiruvananthapuram 695547, Kerala, India
| | - Karthick Ramanathan
- Indian Institute of Space Science and Technology, Thiruvananthapuram 695547, Kerala, India
| | - Arun S.
- Indian Institute of Space Science and Technology, Thiruvananthapuram 695547, Kerala, India
| | - Jordy Bouwman
- Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80303, USA
| | - Lorenzo Avaldi
- CNR-Istituto di Struttura della Materia, Area della Ricerca di Roma 1, Monterotondo, Roma 00015, Italy
| | - Paola Bolognesi
- CNR-Istituto di Struttura della Materia, Area della Ricerca di Roma 1, Monterotondo, Roma 00015, Italy
| | - Robert Richter
- Elettra-Sincrotrone Trieste, Strada Statale 14 - km 163, 5 in AREA Science Park, Basovizza TS 34149, Italy
| |
Collapse
|
10
|
Jacovella U, Rossi C, Romanzin C, Alcaraz C, Thissen R. Structural elucidation of C6H4+· using chemical reaction monitoring: Charge transfer versus bond forming reactions. Chemphyschem 2021; 23:e202100871. [PMID: 34951502 DOI: 10.1002/cphc.202100871] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 12/23/2021] [Indexed: 11/06/2022]
Abstract
Mass spectrometry is a powerful tool but when used on its own, without specific activation of ions, the ion mass is the single observable and the structural information is absent. One way of retrieving this information is by using ion-molecule reactions. We propose a general method to disentangle isomeric structures by combining mass spectrometry, tunable synchrotron light source, and quantum-chemistry calculations. We use reactive chemical monitoring technique, which consists in tracking reactivity changes as a function of photoionization energy i.e. the ionic structure. We illustrate the power of this technique with charge transfer reactions of C6H4+· isomers with allene and propyne and discuss its universal applicability. Furthermore, we emphasize the special reactivity characteristics of distonic ions, where strong charge transfer reactivity but very limited reactivity involving bond formation and following cleavages were observed and attributed to the unconventional ortho -benzyne distonic cation.
Collapse
Affiliation(s)
- Ugo Jacovella
- Université Paris-Saclay, ISMO, Bat. 520, Rue André Rivière, 91405, Orsay, FRANCE
| | - Corentin Rossi
- Université Paris-Saclay, Institut Chimie Physique, FRANCE
| | - Claire Romanzin
- Université Paris-Saclay: Universite Paris-Saclay, Institut Chimie Physique, FRANCE
| | | | - Roland Thissen
- Université Paris-Saclay: Universite Paris-Saclay, Institut Chimie physique, FRANCE
| |
Collapse
|
11
|
Dyakov YA, Adamson S, Wang PK, Golubkov GV, Olkhov OA, Peskov VD, Rodionov ID, Rodionova IP, Rodionov AI, Shapovalov VL, Shestakov DV, Golubkov MG. Isomerization and Decay of a Criegee Intermediate CH3CHOO in the Earth’s Upper Atmosphere. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2021. [DOI: 10.1134/s1990793121030040] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
12
|
Dyakov YA, Puzankov AA, Adamson SO, Golubkov GV, Morozov II, Olkhov OA, Shapovalov VL, Shestakov DV, Golubkov MG. Dissociation of Phenylacetylene and Its Derivatives by Electron Impact. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2020. [DOI: 10.1134/s1990793120050188] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
13
|
Vinitha M, Nair AM, Kumar AS, Blanchet V, Kadhane UR. Isomerization and dehydrogenation of highly vibrationally excited azulene+ produced via S2 vibrational manifold. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
14
|
Vinitha MV, Najeeb PK, Kala A, Bhatt P, Safvan CP, Vig S, Kadhane U. Plasmon excitation and subsequent isomerization dynamics in naphthalene and azulene under fast proton interaction. J Chem Phys 2018; 149:194303. [DOI: 10.1063/1.5046464] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- M. V. Vinitha
- Department of Physics, Indian Institute of Space Science and Technology, Thiruvananthapuram 695547, India
| | - P. K. Najeeb
- Department of Physics, Indian Institute of Space Science and Technology, Thiruvananthapuram 695547, India
| | - A. Kala
- Department of Physics, Indian Institute of Space Science and Technology, Thiruvananthapuram 695547, India
| | - P. Bhatt
- Inter-University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - C. P. Safvan
- Inter-University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - S. Vig
- Department of Earth and Space Science, Indian Institute of Space Science and Technology, Trivandrum 695547, India
| | - U. Kadhane
- Department of Physics, Indian Institute of Space Science and Technology, Thiruvananthapuram 695547, India
| |
Collapse
|
15
|
Chen T, Zhen J, Wang Y, Linnartz H, Tielens AG. From planes to bowls: Photodissociation of the bisanthenequinone cation. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2017.12.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
16
|
de Haas AJ, Oomens J, Bouwman J. Facile pentagon formation in the dissociation of polyaromatics. Phys Chem Chem Phys 2017; 19:2974-2980. [DOI: 10.1039/c6cp08349h] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Energetic processing of gaseous polycyclic aromatic hydrocarbons (PAHs) plays a pivotal role in the chemistries of inter- and circumstellar environments, certain planetary atmospheres, and also in the chemistry of combustion and soot formation.
Collapse
Affiliation(s)
- Arjen J. de Haas
- Radboud University
- Institute for Molecules and Materials
- FELIX Laboratory
- 6525ED Nijmegen
- The Netherlands
| | - Jos Oomens
- Radboud University
- Institute for Molecules and Materials
- FELIX Laboratory
- 6525ED Nijmegen
- The Netherlands
| | - Jordy Bouwman
- Radboud University
- Institute for Molecules and Materials
- FELIX Laboratory
- 6525ED Nijmegen
- The Netherlands
| |
Collapse
|
17
|
Gao J, Bouwman J, Berden G, Oomens J. The Influence of Metal Ion Binding on the IR Spectra of Nitrogen-Containing PAHs. J Phys Chem A 2016; 120:7800-7809. [DOI: 10.1021/acs.jpca.6b05060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Juehan Gao
- Radboud
University, FELIX Laboratory, Institute for Molecules and Materials, Toernooiveld 7c, 6525ED Nijmegen, The Netherlands
| | - Jordy Bouwman
- Radboud
University, FELIX Laboratory, Institute for Molecules and Materials, Toernooiveld 7c, 6525ED Nijmegen, The Netherlands
| | - Giel Berden
- Radboud
University, FELIX Laboratory, Institute for Molecules and Materials, Toernooiveld 7c, 6525ED Nijmegen, The Netherlands
| | - Jos Oomens
- Radboud
University, FELIX Laboratory, Institute for Molecules and Materials, Toernooiveld 7c, 6525ED Nijmegen, The Netherlands
- Van’t
Hoff Institute for Molecular Sciences, University of Amsterdam, Science
Park 904, 1098XH Amsterdam, The Netherlands
| |
Collapse
|
18
|
Muller G, Voronova K, Sztáray B, Meloni G. Rotamers and Migration: Investigating the Dissociative Photoionization of Ethylenediamine. J Phys Chem A 2016; 120:3906-16. [DOI: 10.1021/acs.jpca.6b03516] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Giel Muller
- University of San Francisco, San Francisco, California 94117, United States
| | | | - Bálint Sztáray
- University of the Pacific, Stockton, California 95211, United States
| | - Giovanni Meloni
- University of San Francisco, San Francisco, California 94117, United States
| |
Collapse
|
19
|
Bouwman J, de Haas AJ, Oomens J. Spectroscopic evidence for the formation of pentalene+ in the dissociative ionization of naphthalene. Chem Commun (Camb) 2016; 52:2636-8. [DOI: 10.1039/c5cc10090a] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Acetylene loss from the naphthalene cation yields pentalene+, providing the first experimental evidence for (6–6) to (5–7) membered ring isomerization.
Collapse
Affiliation(s)
- Jordy Bouwman
- Radboud University
- Institute for Molecules and Materials
- FELIX Laboratory
- NL-6525 ED Nijmegen
- The Netherlands
| | - Arjen J. de Haas
- Radboud University
- Institute for Molecules and Materials
- FELIX Laboratory
- NL-6525 ED Nijmegen
- The Netherlands
| | - Jos Oomens
- Radboud University
- Institute for Molecules and Materials
- FELIX Laboratory
- NL-6525 ED Nijmegen
- The Netherlands
| |
Collapse
|
20
|
Solano EA, Mayer PM. A complete map of the ion chemistry of the naphthalene radical cation? DFT and RRKM modeling of a complex potential energy surface. J Chem Phys 2015; 143:104305. [DOI: 10.1063/1.4930000] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
|
21
|
Chen T, Gatchell M, Stockett MH, Delaunay R, Domaracka A, Micelotta ER, Tielens AGGM, Rousseau P, Adoui L, Huber BA, Schmidt HT, Cederquist H, Zettergren H. Formation of H2 from internally heated polycyclic aromatic hydrocarbons: excitation energy dependence. J Chem Phys 2015; 142:144305. [PMID: 25877576 DOI: 10.1063/1.4917021] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We have investigated the effectiveness of molecular hydrogen (H2) formation from Polycyclic Aromatic Hydrocarbons (PAHs) which are internally heated by collisions with keV ions. The present and earlier experimental results are analyzed in view of molecular structure calculations and a simple collision model. We estimate that H2 formation becomes important for internal PAH temperatures exceeding about 2200 K, regardless of the PAH size and the excitation agent. This suggests that keV ions may effectively induce such reactions, while they are unlikely due to, e.g., absorption of single photons with energies below the Lyman limit. The present analysis also suggests that H2 emission is correlated with multi-fragmentation processes, which means that the [PAH-2H](+) peak intensities in the mass spectra may not be used for estimating H2-formation rates.
Collapse
Affiliation(s)
- T Chen
- Department of Physics, Stockholm University, S-106 91 Stockholm, Sweden
| | - M Gatchell
- Department of Physics, Stockholm University, S-106 91 Stockholm, Sweden
| | - M H Stockett
- Department of Physics, Stockholm University, S-106 91 Stockholm, Sweden
| | - R Delaunay
- CIMAP, UMR 6252, CEA/CNRS/ENSICAEN/Université de Caen Basse-Normandie, bd Henri Becquerel, BP 5133, F-14070 Caen cedex 05, France
| | - A Domaracka
- CIMAP, UMR 6252, CEA/CNRS/ENSICAEN/Université de Caen Basse-Normandie, bd Henri Becquerel, BP 5133, F-14070 Caen cedex 05, France
| | - E R Micelotta
- Université Paris Sud, Institut d'Astrophysique Spatiale, UMR 8617, 91405 Orsay, France
| | - A G G M Tielens
- Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden, The Netherlands
| | - P Rousseau
- CIMAP, UMR 6252, CEA/CNRS/ENSICAEN/Université de Caen Basse-Normandie, bd Henri Becquerel, BP 5133, F-14070 Caen cedex 05, France
| | - L Adoui
- CIMAP, UMR 6252, CEA/CNRS/ENSICAEN/Université de Caen Basse-Normandie, bd Henri Becquerel, BP 5133, F-14070 Caen cedex 05, France
| | - B A Huber
- CIMAP, UMR 6252, CEA/CNRS/ENSICAEN/Université de Caen Basse-Normandie, bd Henri Becquerel, BP 5133, F-14070 Caen cedex 05, France
| | - H T Schmidt
- Department of Physics, Stockholm University, S-106 91 Stockholm, Sweden
| | - H Cederquist
- Department of Physics, Stockholm University, S-106 91 Stockholm, Sweden
| | - H Zettergren
- Department of Physics, Stockholm University, S-106 91 Stockholm, Sweden
| |
Collapse
|
22
|
Paris C, Alcamí M, Martín F, Díaz-Tendero S. Multiple ionization and hydrogen loss from neutral and positively-charged coronene. J Chem Phys 2014; 140:204307. [DOI: 10.1063/1.4875805] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
23
|
Johansson HAB, Zettergren H, Holm AIS, Haag N, Nielsen SB, Wyer JA, Kirketerp MBS, Støchkel K, Hvelplund P, Schmidt HT, Cederquist H. Unimolecular dissociation of anthracene and acridine cations: The importance of isomerization barriers for the C2H2 loss and HCN loss channels. J Chem Phys 2011; 135:084304. [DOI: 10.1063/1.3626792] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
24
|
Seitz F, Holm AIS, Zettergren H, Johansson HAB, Rosén S, Schmidt HT, Ławicki A, Rangama J, Rousseau P, Capron M, Maisonny R, Domaracka A, Adoui L, Méry A, Manil B, Huber BA, Cederquist H. Polycyclic aromatic hydrocarbon-isomer fragmentation pathways: Case study for pyrene and fluoranthene molecules and clusters. J Chem Phys 2011; 135:064302. [DOI: 10.1063/1.3622589] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
25
|
Holm AIS, Johansson HAB, Cederquist H, Zettergren H. Dissociation and multiple ionization energies for five polycyclic aromatic hydrocarbon molecules. J Chem Phys 2011; 134:044301. [DOI: 10.1063/1.3541252] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
26
|
Holm AIS, Zettergren H, Johansson HAB, Seitz F, Rosén S, Schmidt HT, Lawicki A, Rangama J, Rousseau P, Capron M, Maisonny R, Adoui L, Méry A, Manil B, Huber BA, Cederquist H. Ions colliding with cold polycyclic aromatic hydrocarbon clusters. PHYSICAL REVIEW LETTERS 2010; 105:213401. [PMID: 21231303 DOI: 10.1103/physrevlett.105.213401] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Indexed: 05/26/2023]
Abstract
We report the first experimental study of ions interacting with clusters of polycyclic aromatic hydrocarbon (PAH) molecules. Collisions between 11.25 keV 3He+ or 360 keV 129Xe20+ and weakly bound clusters of one of the smallest PAH molecules, anthracene, show that C14H10 clusters have much higher tendencies to fragment in ion collisions than other weakly bound clusters. The ionization is dominated by peripheral collisions in which the clusters, very surprisingly, are more strongly heated by Xe20+ collisions than by He+ collisions. The appearance size is k=15 for [C ₁₄H₁₀](k)2+.
Collapse
Affiliation(s)
- A I S Holm
- Department of Physics, Stockholm University, SE-106 91 Stockholm, Sweden
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Oomens J, Morton TH. Structures of products from positive ion-molecule reactions by means of vibrational spectroscopy. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2010; 16:313-319. [PMID: 20530838 DOI: 10.1255/ejms.1060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Examples of various approaches to determining gaseous ion structures are described. Two cases are presented in which infrared multiple photon dissociation (IRMPD) spectroscopy provides characteristic information. Comparison with DFT-calculated normal modes differentiates isomers. The IRMPD spectrum of the even-electron C(8)D(8)F(+) product ion from the ion-molecule reaction of CF(3)(+) with perdeuterated acetophenone exhibits a degree of resolution sufficient to identify C(6)D(5)CFCD(3)(+) and rule out ring-fluorinated isomers. The dimerization of phenylacetylene with its molecular ion has been explored, with the conclusion that a mixture of product ions is formed. The best match to the experimental spectrum is achieved by superimposing the bands calculated for ionized 1-phenylazulene and ionized 1,2-diphenylcyclobutadiene.
Collapse
Affiliation(s)
- Jos Oomens
- FOM Institute of Plasma Physics, Rijnhuizen, Edisonbaan 14, Nieuwegein, The Netherlands
| | | |
Collapse
|