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Briant M, Mestdagh JM, Gaveau MA, Poisson L. Reaction dynamics within a cluster environment. Phys Chem Chem Phys 2022; 24:9807-9835. [PMID: 35441619 DOI: 10.1039/d1cp05783a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This perspective article reviews experimental and theoretical works where rare gas clusters and helium nanodroplets are used as a nanoreactor to investigate chemical dynamics in a solvent environment. A historical perspective is presented first followed by specific considerations on the mobility of reactants within these reaction media. The dynamical response of pure clusters and nanodroplets to photoexcitation is shortly reviewed before examining the role of the cluster (or nanodroplet) degrees of freedom in the photodynamics of the guest atoms and molecules.
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Affiliation(s)
- Marc Briant
- Université Paris-Saclay, CEA, CNRS, LIDYL, 91191, Gif-sur-Yvette, France
| | | | - Marc-André Gaveau
- Université Paris-Saclay, CEA, CNRS, LIDYL, 91191, Gif-sur-Yvette, France
| | - Lionel Poisson
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405, Orsay, France.
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Fárník M, Fedor J, Kočišek J, Lengyel J, Pluhařová E, Poterya V, Pysanenko A. Pickup and reactions of molecules on clusters relevant for atmospheric and interstellar processes. Phys Chem Chem Phys 2021; 23:3195-3213. [PMID: 33524089 DOI: 10.1039/d0cp06127a] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
In this perspective, we review experiments with molecules picked up on large clusters in molecular beams with the focus on the processes in atmospheric and interstellar chemistry. First, we concentrate on the pickup itself, and we discuss the pickup cross sections. We measure the uptake of different atmospheric molecules on mixed nitric acid-water clusters and determine the accommodation coefficients relevant for aerosol formation in the Earth's atmosphere. Then the coagulation of the adsorbed molecules on the clusters is investigated. In the second part of this perspective, we review examples of different processes triggered by UV-photons or electrons in the clusters with embedded molecules. We start with the photodissociation of hydrogen halides and Freon CF2Cl2 on ice nanoparticles in connection with the polar stratospheric ozone depletion. Next, we mention reactions following the excitation and ionization of the molecules adsorbed on clusters. The first ionization-triggered reaction observed between two different molecules picked up on the cluster was the proton transfer between methanol and formic acid deposited on large argon clusters. Finally, negative ion reactions after slow electron attachment are illustrated by two examples: mixed nitric acid-water clusters, and hydrogen peroxide deposited on large ArN and (H2O)N clusters. The selected examples are discussed from the perspective of the atmospheric and interstellar chemistry, and several future directions are proposed.
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Affiliation(s)
- Michal Fárník
- J. Heyrovský Institute of Physical Chemistry, v.v.i., The Czech Academy of Sciences, Dolejškova 2155/3, 182 23 Prague, Czech Republic.
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Briant M, Gloaguen E, Beswick A, Mestdagh JM, Stolte S, Poisson L, Pothier C, Soep B. Reactive and Inelastic Channels in the Ca*···FCH3 Transition State: A Simple Branching Mechanism. J Phys Chem A 2015; 119:6099-110. [PMID: 25766058 DOI: 10.1021/acs.jpca.5b00444] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
To study the excited state dynamics between a calcium atom and the CH3F molecule, a Ca···CH3F 1:1 complex has been prepared by a supersonic expansion with laser ablation of calcium metal in the gas phase. Tunable laser excitation of these complexes in molecular states correlating to Ca (1)P1(4s4p) + CH3F allows observing two competitive channels: the direct dissociation and the reactive channel into CaF* + CH3. The translational recoil, as well as the alignment of the fragments Ca* and CaF* have been analyzed by velocity map imaging and time-of-flight mass spectrometry. This revealed that both the dissociation and reaction processes are quasi direct and are of comparable intensity. We provide a simple interpretation for this process: the electronically excited potential surface of the Ca*···FCH3 complex initiates a fast predissociation from a suspended well to two repulsive surfaces that lead either to Ca (1)P1(4s4p) (Ω = 1) + CH3F or to CaF((2)Δ) + CH3.
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Affiliation(s)
| | | | - A Beswick
- §LCAR IRSAMC, Université de Toulouse 3, F-31062 Toulouse, France
| | | | - S Stolte
- ∥Institute of Atomic and Molecular Physics, Jilin University, Changchun, 1300012, China.,⊥Department of Physics and Astronomy, LaserLaB, Vrije Universiteit, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands
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Affiliation(s)
- J.-M. Mestdagh
- a Laboratoire Francis Perrin (CNRS-URA-2453) , DSM/DRECAM/Service des Photons , Atomes et Molécules, C.E.A. Saclay, Gif-sur-Yvette cedex , F-91191 , France
| | - B. Soep
- a Laboratoire Francis Perrin (CNRS-URA-2453) , DSM/DRECAM/Service des Photons , Atomes et Molécules, C.E.A. Saclay, Gif-sur-Yvette cedex , F-91191 , France
| | - M.-A. Gaveau
- a Laboratoire Francis Perrin (CNRS-URA-2453) , DSM/DRECAM/Service des Photons , Atomes et Molécules, C.E.A. Saclay, Gif-sur-Yvette cedex , F-91191 , France
| | - J.-P. Visticot
- a Laboratoire Francis Perrin (CNRS-URA-2453) , DSM/DRECAM/Service des Photons , Atomes et Molécules, C.E.A. Saclay, Gif-sur-Yvette cedex , F-91191 , France
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Heitz MC, Teixidor L, Van-Oanh NT, Spiegelman F. Relaxation Dynamics of Photoexcited Calcium Deposited on Argon Clusters: Theoretical Simulation of Time-Resolved Photoelectron Spectra. J Phys Chem A 2010; 114:3287-96. [DOI: 10.1021/jp909443p] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Marie-Catherine Heitz
- Laboratoire de Chimie et de Physique Quantiques, IRSAMC, CNRS and Université de Toulouse, Université Paul Sabatier, 118 route de Narbonne, 31062, Toulouse,Cedex, France, Laboratoire de Chimie Physique, CNRS and Université Paris XI, 91405 Orsay, France
| | - Laurent Teixidor
- Laboratoire de Chimie et de Physique Quantiques, IRSAMC, CNRS and Université de Toulouse, Université Paul Sabatier, 118 route de Narbonne, 31062, Toulouse,Cedex, France, Laboratoire de Chimie Physique, CNRS and Université Paris XI, 91405 Orsay, France
| | - Nguyen-Thi Van-Oanh
- Laboratoire de Chimie et de Physique Quantiques, IRSAMC, CNRS and Université de Toulouse, Université Paul Sabatier, 118 route de Narbonne, 31062, Toulouse,Cedex, France, Laboratoire de Chimie Physique, CNRS and Université Paris XI, 91405 Orsay, France
| | - Fernand Spiegelman
- Laboratoire de Chimie et de Physique Quantiques, IRSAMC, CNRS and Université de Toulouse, Université Paul Sabatier, 118 route de Narbonne, 31062, Toulouse,Cedex, France, Laboratoire de Chimie Physique, CNRS and Université Paris XI, 91405 Orsay, France
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Gaveau MA, Gloaguen E, Fournier PR, Mestdagh JM. Transition State Spectroscopy of the Photoinduced Ca + CH3F Reaction. 1. A Cluster Isolated Chemical Reaction Study. J Phys Chem A 2005; 109:9494-8. [PMID: 16866399 DOI: 10.1021/jp053128h] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The "cluster isolated chemical reactions" technique is used to examine the dynamics of the photoinduced reaction producing electronically excited CaF when 1:1 Ca-CH(3)F complexes are deposited at the surface of large argon clusters. This technique ensures quantitatively that 1:1 complexes are actually at the origin of the observed signals. The reaction is monitored by observing the CaF chemiluminescence while scanning the photoexcitation laser. The resulting action spectrum contains information about the absorption bands of the complex, filtered by the dynamics of the reaction. The observations suggest a profound alteration of the calcium electronic structure and a control of the reaction by the CF stretch in CH(3)F.
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Affiliation(s)
- M-A Gaveau
- Laboratoire Francis Perrin (CNRS-URA-2453), DSM/DRECAM/Service des Photons, Atomes et Molécules, C.E.A. Saclay, F-91191 Gif-sur-Yvette Cedex, France
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