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Benjamin I. Chemical Reaction Dynamics at Liquid Interfaces: A Computational Approach. PROGRESS IN REACTION KINETICS AND MECHANISM 2019. [DOI: 10.3184/007967402103165360] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Recent advances in experimental and theoretical studies of liquid interfaces provide remarkable evidence for the unique properties of these systems. In this review we examine how these properties affect the thermodynamics and kinetics of chemical reactions which take place at the liquid/vapor interface and at the liquid/liquid interface. We demonstrate how the rapidly varying density and viscosity, the marked changes in polarity and the surface roughness manifest themselves in isomerization, electron transfer and photodissociation reactions.
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Affiliation(s)
- Ilan Benjamin
- Department of Chemistry, University of California, Santa Cruz, California 95064, USA
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2
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Wüster S. Quantum Zeno Suppression of Intramolecular Forces. PHYSICAL REVIEW LETTERS 2017; 119:013001. [PMID: 28731744 DOI: 10.1103/physrevlett.119.013001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Indexed: 06/07/2023]
Abstract
We show that Born-Oppenheimer surfaces can intrinsically decohere, implying loss of coherence among constituent electronic basis states. We consider the example of interatomic forces due to resonant dipole-dipole interactions within a dimer of highly excited Rydberg atoms, embedded in an ultracold gas. These forces rely on a coherent superposition of two-atom electronic states, which is destroyed by continuous monitoring of the dimer state through a detection scheme utilizing the background gas atoms. We show that this intrinsic decoherence of the molecular energy surface can gradually deteriorate a repulsive dimer state, causing a mixing of attractive and repulsive character. For sufficiently strong decoherence, a Zeno-like effect causes a complete cessation of interatomic forces. We finally show how short decohering pulses can controllably redistribute population between the different molecular energy surfaces.
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Affiliation(s)
- S Wüster
- Max Planck Institute for the Physics of Complex Systems, Nöthnitzer Strasse 38, 01187 Dresden, Germany, Department of Physics, Bilkent University, 06800 Çankaya, Ankara, Turkey and Department of Physics, Indian Institute of Science Education and Research, Bhopal, Madhya Pradesh 462 023, India
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3
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Hulkko E, Ahokas J, Lindgren J, Myllyperkiö P, Pettersson M. Electronic spectroscopy of I(2)-Xe complexes in solid Krypton. J Chem Phys 2012; 136:174501. [PMID: 22583243 DOI: 10.1063/1.4706521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In the present work, we have studied ion-pair states of matrix-isolated I(2) with vacuum-UV absorption and UV-vis-NIR emission, where the matrix environment is systematically changed by mixing Kr with Xe, from pure Kr to a more polarizable Xe host. Particular emphasis is put on low doping levels of Xe that yield a binary complex I(2)-Xe, as verified by coherent anti-Stokes Raman scattering (CARS) measurements. Associated with interaction of I(2) with Xe we can observe strong new absorption in vacuum-UV, redshifted 2400 cm(-1) from the X → D transition of I(2). Observed redshift can be explained by symmetry breaking of ion-pair states within the I(2)-Xe complex. Systematic Xe doping of Kr matrices shows that at low doping levels, positions of I(2) ion-pair emissions are not significantly affected by complexation with Xe, but simultaneous increase of emissions from doubly spin-excited states indicates non-radiative relaxation to valence states. At intermediate doping levels ion-pair emissions shift systematically to red due to change in the average polarizability of the environment. We have conducted spectrally resolved ultrafast pump-probe ion-pair emission studies with pure and Xe doped Kr matrices, in order to reveal the influence of Xe to I(2) dynamics in solid Kr. Strikingly, relaxed emission from the ion-pair states shows no indication of complex presence. It further indicates that the complex escapes detection due to a non-radiative relaxation.
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Affiliation(s)
- Eero Hulkko
- Nanoscience Center, Department of Chemistry, University of Jyväskylä, P.O. Box 35, FIN-40014, Finland.
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Buchachenko A, Halberstadt N, Lepetit B, Roncero O. Ar ··· I 2 : A model system for complex dynamics. INT REV PHYS CHEM 2010. [DOI: 10.1080/0144235031000075726] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Alexei Buchachenko
- a Laboratory of Molecular Structure and Quantum Mechanics, Department of Chemistry , Moscow State University , Moscow , 119992 , Russia
| | - Nadine Halberstadt
- b LPQT-IRSAMC , Université Paul Sabatier and CNRS , 118 route de Narbonne, Toulouse , 31062 , France
| | - Bruno Lepetit
- c LCAR-IRSAMC , Université Paul Sabatier and CNRS , 118 route de Narbonne, Toulouse , 31062 , France
| | - Octavio Roncero
- d Instituto de Matemáticas y Física Fundamental , CSIC , Serrano 123, Madrid , 28006 , Spain
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Akopyan ME, Lukashov SS, Poretsky SA, Pravilov AM, Torgashkova AS, Buchachenko AA, Suleimanov YV. Dynamics and mechanism of the E-->D, D', beta, gamma, and delta nonadiabatic transitions induced in molecular iodine by collisions with CF4 and SF6 molecules. J Chem Phys 2008; 129:114309. [PMID: 19044962 DOI: 10.1063/1.2978170] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Nonadiabatic transitions among the first-tier ion-pair states of the iodine molecule in collisions with CF(4) and SF(6) partners are investigated by detecting the luminescence following the optical-optical double resonance excitation of the E0(g) (+)-state to the vibrational levels v(E)=8, 13, and 19. Total and partial rate constants, as well as vibrational product state distributions, are determined. It is found that electronic energy transfer in all channels is predominantly assisted by excitation of the dipole-allowed nu(3) and nu(4) modes of the partner. The measurements are accompanied by quantum scattering calculations that implement a close coupling treatment for the electronic and vibrational degrees of freedom and combine diatomics-in-molecule and long-range models for diabatic potential energy surfaces and coupling matrix elements. The analysis of experimental and theoretical data shows that the transitions without excitation of the partner are due to short-range couplings, whereas the vibrational excitation of the partner in the D0(u) (+) channel originates from the long-range coupling of two transition dipole moments: electronic of the iodine molecule and vibrational of the partner. Unexpectedly efficient excitations of the partner in the other ion-pair states, which are not coupled to the initial E0(g) (+)-state by the transition dipole, are interpreted within the postcollision mechanism. Qualitatively, this implies that during a single collision the long-range nonadiabatic transitions to D, nu(3) and D, nu(4) channels are followed by secondary short-range transitions without changing the state of the partner.
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Affiliation(s)
- Mikhail E Akopyan
- V. A. Fock Institute of Physics, Physical Faculty, St. Petersburg State University, Ul'yanovskaya 1, Staryj Peterhof, 198504 St. Petersburg, Russia
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6
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Goldschleger IU, Kerenskaya G, Senekerimyan V, Janda KC, Apkarian VA. Dynamical interrogation of the hydration cage of bromine in single crystal clathrate hydrates versus water. Phys Chem Chem Phys 2008; 10:7226-32. [DOI: 10.1039/b811529j] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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7
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Sylvester-Hvid KO, Mikkelsen KV, Nymand TM, Astrand PO. Refractive index of liquid water in different solvent models. J Phys Chem A 2007; 109:905-14. [PMID: 16838963 DOI: 10.1021/jp046556g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We present a combined molecular dynamics/quantum chemical perturbation method for calculating the refractive index of liquid water at different temperatures. We compare results of this method with the refractive index obtained from other solvent models. The best agreement with the experimental refractive index of liquid water and its temperature dependence is obtained using correlated gas-phase polarizabilities in the classical Lorentz-Lorenz expression. Also, the iterative self-consistent reaction field approach in the semicontinuum implementation matches the experimental refractive index reasonably well.
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Affiliation(s)
- Kristian O Sylvester-Hvid
- Department of Chemistry, H. C. Ørsted Institute, University of Copenhagen, DK-2100 Copenhagen Ø, Denmark.
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8
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Oelkers AB, Scatena LF, Tyler DR. Femtosecond Pump−Probe Transient Absorption Study of the Photolysis of [Cp‘Mo(CO)3]2 (Cp‘ = η5-C5H4CH3): Role of Translational and Rotational Diffusion in the Radical Cage Effect. J Phys Chem A 2007; 111:5353-60. [PMID: 17552498 DOI: 10.1021/jp064849z] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Femtosecond pump-probe studies of the photodissociation and subsequent radical cage pair recombination dynamics of the organometallic dimer [Cp'Mo(CO)3]2 (Cp' = eta5-C5H4CH3) are reported. The dynamics following photodissociation were studied in numerous noncoordinating hydrocarbon solvents. The results indicate that primary geminate recombination occurs on an ultrafast time scale (tau approximately 5 ps) and the efficiency of cage escape is inversely proportional to solvent viscosity. Investigation of the time-dependent anisotropy in this system allowed for an estimate of the rotational correlation time of the radical fragments (tau approximately 5-25 ps). Comparison of the rates of rotational motion with the population kinetics shows that the primary solvent cage dynamics and recombination efficiency are controlled by radical diffusion and not by radical rotation.
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Affiliation(s)
- Alan B Oelkers
- Department of Chemistry, University of Oregon, Eugene, OR 97403, USA
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10
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Fernandez-Ramos A, Miller JA, Klippenstein SJ, Truhlar DG. Modeling the kinetics of bimolecular reactions. Chem Rev 2007; 106:4518-84. [PMID: 17091928 DOI: 10.1021/cr050205w] [Citation(s) in RCA: 474] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Antonio Fernandez-Ramos
- Departamento de Quimica Fisica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
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11
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12
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Gühr M, Bargheer M, Fushitani M, Kiljunen T, Schwentner N. Ultrafast dynamics of halogens in rare gas solids. Phys Chem Chem Phys 2007; 9:779-801. [PMID: 17287873 DOI: 10.1039/b609058n] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We perform time resolved pump-probe spectroscopy on small halogen molecules ClF, Cl2, Br2, and I2 embedded in rare gas solids (RGS). We find that dissociation, angular depolarization, and the decoherence of the molecule is strongly influenced by the cage structure. The well ordered crystalline environment facilitates the modelling of the experimental angular distribution of the molecular axis after the collision with the rare gas cage. The observation of many subsequent vibrational wave packet oscillations allows the construction of anharmonic potentials and indicate a long vibrational coherence time. We control the vibrational wave packet revivals, thereby gaining information about the vibrational decoherence. The coherence times are remarkable larger when compared to the liquid or high pressure gas phase. This fact is attributed to the highly symmetric molecular environment of the RGS. The decoherence and energy relaxation data agree well with a perturbative model for moderate vibrational excitation and follow a classical model in the strong excitation limit. Furthermore, a wave packet interferometry scheme is applied to deduce electronic coherence times. The positions of those cage atoms, excited by the molecular electronic transitions are modulated by long living coherent phonons of the RGS, which we can probe via the molecular charge transfer states.
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Affiliation(s)
- M Gühr
- Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, D-14195, Berlin, Germany
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13
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Flachenecker G, Materny A. The elementary steps of the photodissociation and recombination reactions of iodine molecules enclosed in cages and channels of zeolite crystals: a femtosecond time-resolved study of the geometry effect. J Chem Phys 2006; 120:5674-90. [PMID: 15267445 DOI: 10.1063/1.1650298] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present femtosecond time-resolved pump-probe experiments on iodine molecules enclosed into well-defined cages and channels of different crystalline SiO2 modifications of zeolites. The new experimental results obtained from iodine in TON (Silica-ZSM-22), FER (Silica-Ferrierit), and MFI (Silicalit-1) porosils are compared with data published earlier on the iodine/DDR (Decadodecasil 3R) porosil system [Flachenecker et al., Phys. Chem. Chem. Phys. 5, 865 (2003)]. A summary of all findings is given. The processes analyzed by means of the ultrafast spectroscopy are the vibrational relaxation as well as the dissociation and recombination reactions, which are caused by the interaction of the photo-excited iodine molecules with the cavity walls of the porosils. A clear dependence of the observed dynamics on the geometry of the surrounding lattice structure can be seen. These measurements are supported by temperature-dependent experiments. Making use of a theoretical model which is based on the classical Langevin equation, an analysis of the geometry-reaction relation is performed. The Brownian dynamics simulations show that in contrast to the vibrational relaxation the predissociation dynamics are independent of the frequency of collisions with the surroundings. From the results obtained in the different surroundings, we conclude that mainly local fields are responsible for the crossing from the bound B state to the repulsive a/a' states of the iodine molecules.
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Affiliation(s)
- G Flachenecker
- International University Bremen, School of Engineering and Science, Campus Ring 8, D-28759 Bremen, Germany
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14
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Grimm C, Kandratsenka A, Wagener P, Zerbs J, Schroeder J. Photoinduced Isomerization Kinetics of Diiodomethane in Supercritical Fluid Solution: Local Density Effects. J Phys Chem A 2006; 110:3320-9. [PMID: 16509658 DOI: 10.1021/jp055608e] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The density dependence of diiodomethane photoinduced isomerization in supercritical (sc) CO2, CHF3, and C2H6 was investigated by transient absorption spectroscopy, covering a fluid density range from 0.7 to 2.5 (in reduced units). The solvent-caged photoproduct iso-diiodomethane is formed even at the lowest density, and its yield increases about 4-fold over the whole range. At the same time, isomer formation rate constants increase by roughly an order of magnitude and show little variation between CO2, C2H6, and CHF3. Furthermore, the formation rate constant decreases significantly with increasing excitation energy. We propose an isomer formation mechanism involving a rapidly established preequilibrium between a solvent-caged iodine atom-methyliodide radical pair and a loosely bound iodine-methyliodide radical complex, from which the reaction subsequently proceeds to the isomer. The latter step seems to be controlled by collisional stabilization of the initially hot radical moiety, as the formation rate constant increases linearly with sc solvent viscosity. The model predicts a quadratic dependence of relative isomer yield on fluid density. A corresponding correlation is found with the local fluid density, calculated via solute-solvent radial distribution functions obtained from molecular dynamics (MD) simulations.
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Affiliation(s)
- Christian Grimm
- Institut für Physikalische Chemie, Universität Göttingen, Tammannstrasse 6, 37077 Göttingen, Germany
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15
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Kimura Y, Saga N. Application of the time-resolved spectroscopy on the photo-dissociation dynamics of disulfide compounds in supercritical fluids. J Mol Liq 2005. [DOI: 10.1016/j.molliq.2004.10.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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17
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Meier C. Mixed quantum-classical treatment of vibrational decoherence. PHYSICAL REVIEW LETTERS 2004; 93:173003. [PMID: 15525072 DOI: 10.1103/physrevlett.93.173003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2004] [Indexed: 05/24/2023]
Abstract
The mixed quantum-classical method based on the Bohmian formulation of quantum mechanics [J. Chem. Phys. 113, 9369 (2000)]] is applied to study the process of vibrational decoherence of I2 in a dense helium environment. Specifically, the revival of vibrational wave packets, detectable by pump-probe spectroscopy, is a quantum phenomena which depends sensitively on the coherence between the vibrational levels excited by the pump pulse. The time-dependent pump-probe revival signal is a very sensitive way of detecting vibrational dephasing induced by an environment. The very good agreement between previous experimental signals and calculations presented in ths work confirms the theoretical approach and provides a promising basis for the prediction and interpretation of future experiments exploiting quantum revivals as a probe of decoherence.
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Affiliation(s)
- C Meier
- Laboratoire Collisions, Agrégats, Réactivité, Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes, Université Paul Sabatier, 31062 Toulouse, France
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Meier C, Beswick JA. Femtosecond pump-probe spectroscopy of I2 in a dense rare gas environment: A mixed quantum/classical study of vibrational decoherence. J Chem Phys 2004; 121:4550-8. [PMID: 15332885 DOI: 10.1063/1.1774159] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The process of decoherence of vibrational states of I2 in a dense helium environment is studied theoretically using the mixed quantum/classical method based on the Bohmian formulation of quantum mechanics [E. Gindensperger, C. Meier, and J. A. Beswick, J. Chem. Phys. 113, 9369 (2000)]. Specifically, the revival of vibrational wave packets is a quantum phenomena which depends sensitively on the coherence between the vibrational states excited by an ultrafast laser pulse. Its detection by a pump-probe setup as a function of rare gas pressure forms a very accurate way of detecting vibrational dephasing. Vibrational revivals of I2 in high pressure rare gas environments have been observed experimentally, and the very good agreement with the simulated spectra confirms that the method can accurately describe decoherence processes of quantum systems in interaction with an environment.
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Affiliation(s)
- C Meier
- Laboratoire Collisions, Agregats et Reactivite, UMR 5589, IRSAMC, Universite Paul Sabatier, 31062 Toulouse, France
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19
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Lohmüller T, Engel V, Beswick JA, Meier C. Fractional revivals in the rovibrational motion of I2. J Chem Phys 2004; 120:10442-9. [PMID: 15268072 DOI: 10.1063/1.1711809] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Motivated by pump-probe experiments of I(2) in a room-temperature sample, the detection of fractional revivals is investigated using full-dimensional quantum wave packet calculations. It is shown that the structures observed in the pump-probe signal depend sensitively on the probe parameters employed and that the observed signal reflects a particular phase effect between fractional revivals.
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Affiliation(s)
- T Lohmüller
- Institut für Physikalische Chemie, Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
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20
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Bihary Z, Zadoyan R, Karavitis M, Apkarian VA. Dynamics and the breaking of a driven cage: I2 in solid Ar. J Chem Phys 2004; 120:7576-89. [PMID: 15267670 DOI: 10.1063/1.1689958] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Pump-probe measurements of I2 in solid Ar are reported and analyzed to extract a description of cage response to impulsive excitation, from the gentle kick, up to the breaking point. The most informative data are obtained through wavepacket motion on cage-bound, but otherwise dissociative, potentials where the chromophore acts as a transducer to drive the cage and to report on the local dynamics. This general class of dynamics is identified and analyzed as a function of energy in Ar, Kr, and Xe. The overdriven cage rebounds with a characteristic period of 1.2 ps that shows little dependence on excitation amplitude in all hosts. After rebound, the cage rings as a local resonant mode in Ar, with a period of 1 ps and dephasing time of 3 ps. This mode remains at the Debye edge in Kr and Xe, with periods of 630 and 800 fs, and dephasing times of 8 and 6 ps, respectively. In the bound B-state, the cage fluctuates toward its dilated equilibrium structure on a time scale of 3 ps, which is extracted from the down-chirp in the molecular vibrational frequency. When kicked with excess energy of 4 eV, the Ar cage breaks with 50% probability, and the molecule dissociates. The kinetics of polarization selective, multiphoton dissociation with Gaussian laser intensity profiles is delineated and the ballistics of cage breakout is described: The photodissociation proceeds by destruction of the local lattice, by creating interstitials and vacancies. During large amplitude motion on cage-bound potentials, sudden, nonadiabatic spin-flip transitions can be observed and quantified in space and time. The spin-flip occurs with unit probability in Ar when the I*-I bond is stretched beyond 6 A.
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Affiliation(s)
- Z Bihary
- Department of Chemistry, University of California, Irvine, California 92697, USA
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Affiliation(s)
- Abderrazzak Douhal
- Departamento de Química Física, Sección de Químicas, Facultad de Ciencias del Medio Ambiente, Universidad de Castilla-La Mancha, Avenida Carlos III, S.N. 45071 Toledo, Spain.
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Grimm C, Kling M, Schroeder J, Troe J, Zerbs J, Schroeder J, Troe J. Density-dependent photochemical branching ratio in supercritical CO2: Photodissociation and isomerization of diiodomethane. Isr J Chem 2003. [DOI: 10.1560/d8hj-jqtw-w43y-qf1g] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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23
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Comstock M, Lozovoy VV, Dantus M. Femtosecond photon echo measurements of electronic coherence relaxation between the X(1Σg+) and B(3Π0u+) states of I2 in the presence of He, Ar, N2, O2, C3H8. J Chem Phys 2003. [DOI: 10.1063/1.1603739] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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24
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Kim NJ, Paik DH, Zewail AH. Femtosecond dynamics of solvated oxygen anions. II. Nature of dissociation and caging in finite-sized clusters. J Chem Phys 2003. [DOI: 10.1063/1.1561434] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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25
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Gühr M, Bargheer M, Dietrich P, Schwentner N. Predissociation and Vibrational Relaxation in the B State of I2 in a Kr Matrix. J Phys Chem A 2002. [DOI: 10.1021/jp0202993] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- M. Gühr
- Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - M. Bargheer
- Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - P. Dietrich
- Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - N. Schwentner
- Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
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26
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Rasmusson M, Tarnovsky AN, Pascher T, Sundström V, Åkesson E. Photodissociation of CH2ICH2I, CF2ICF2I, and CF2BrCF2I in Solution. J Phys Chem A 2002. [DOI: 10.1021/jp020720n] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marcus Rasmusson
- Department of Chemical Physics, Lund University, Box 124, 221 00 Lund, Sweden
| | | | - Torbjörn Pascher
- Department of Chemical Physics, Lund University, Box 124, 221 00 Lund, Sweden
| | - Villy Sundström
- Department of Chemical Physics, Lund University, Box 124, 221 00 Lund, Sweden
| | - Eva Åkesson
- Department of Chemical Physics, Lund University, Box 124, 221 00 Lund, Sweden
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27
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Pedersen DB, Weitz E. Photolysis of intrasilicalite I2: Spectroscopy and dynamics. J Chem Phys 2002. [DOI: 10.1063/1.1386488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
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28
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Helbing J, Chergui M. Solvation of ion-pair states in nonpolar media: I2 in solid neon, argon and krypton. J Chem Phys 2001. [DOI: 10.1063/1.1401808] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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29
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Vieceli J, Chorny I, Benjamin I. Photodissociation of ICN at the liquid/vapor interface of chloroform. J Chem Phys 2001. [DOI: 10.1063/1.1388196] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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30
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Ermoshin VA, Engel V, Kazansky AK. Phase and Energy Relaxation of Vibrational Motion and Its Manifestation in Femtosecond Pump−Probe Experiments on I2 in Rare Gas Environments. J Phys Chem A 2001. [DOI: 10.1021/jp004408u] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- V. A. Ermoshin
- Institut für Physikalische Chemie, Universität Würzburg Am Hubland, 97074 Würzburg, Germany
| | - V. Engel
- Institut für Physikalische Chemie, Universität Würzburg Am Hubland, 97074 Würzburg, Germany
| | - A. K. Kazansky
- Fock Institute of Physics, The University of St. Petersburg, 198504 St. Petersburg, Russia
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Ermoshin VA, Flachenecker G, Materny A, Engel V. Caging of I2 in deca-dodecasil 3R: Pump–probe experiments and molecular dynamics modeling. J Chem Phys 2001. [DOI: 10.1063/1.1359739] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Fidder H, Tschirschwitz F, Dühr O, Nibbering ETJ. Vibrational mode-specific photochemical reaction dynamics of chlorine dioxide in solution. J Chem Phys 2001. [DOI: 10.1063/1.1357202] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ermoshin V, Engel V. Manifestation of predissociation and vibrational relaxation in femtosecond pump–probe signals: a theoretical analysis. Chem Phys Lett 2001. [DOI: 10.1016/s0009-2614(01)00162-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wang H, Thoss M, Sorge KL, Gelabert R, Giménez X, Miller WH. Semiclassical description of quantum coherence effects and their quenching: A forward–backward initial value representation study. J Chem Phys 2001. [DOI: 10.1063/1.1337802] [Citation(s) in RCA: 116] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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Pastirk I, Lozovoy VV, Dantus M. Femtosecond photon echo and virtual echo measurements of the vibronic and vibrational coherence relaxation times of iodine vapor. Chem Phys Lett 2001. [DOI: 10.1016/s0009-2614(00)01334-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
Quantum yields of photodissociation were determined for iodine in compressed liquid
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Kazansky AK, Ermoshin VA, Engel V. Phase-energy approach to collision-induced vibrational relaxation. J Chem Phys 2000. [DOI: 10.1063/1.1326906] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Zhong Q, Castleman AW. An ultrafast glimpse of cluster solvation effects on reaction dynamics. Chem Rev 2000; 100:4039-58. [PMID: 11749339 DOI: 10.1021/cr990056f] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Q Zhong
- Departments of Chemistry and Physics, The Pennsylvania State University, University Park, Pennsylvania 16802
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Ermoshin VA, Engel V, Meier C. Collision-induced bound state motion in I2. A classical molecular dynamics study. J Chem Phys 2000. [DOI: 10.1063/1.1310224] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Zewail A. Femtochemie: Studium der Dynamik der chemischen Bindung auf atomarer Skala mit Hilfe ultrakurzer Laserpulse (Nobel-Aufsatz). Angew Chem Int Ed Engl 2000. [DOI: 10.1002/1521-3757(20000804)112:15<2688::aid-ange2688>3.0.co;2-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Flachenecker G, Materny A. Ultrafast Reaction Dynamics in Different Environments. J CHIN CHEM SOC-TAIP 2000. [DOI: 10.1002/jccs.200000082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Otomo J, Oshima Y, Takami A, Koda S. KrF Excimer Laser-induced Ozone Formation in Supercritical Carbon Dioxide. J Phys Chem A 2000. [DOI: 10.1021/jp9935485] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Junichiro Otomo
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yoshito Oshima
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Akinori Takami
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Seiichiro Koda
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan
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Ermoshin V, Engel V. Molecular Dynamics Simulation of Femtosecond Pump-Probe Experiments on I2 in Ar Environments. Z PHYS CHEM 2000. [DOI: 10.1524/zpch.2000.214.9.1265] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
We present the application of classical molecular dynamics methods to the simulation of femtosecond time-resolved experiments. Choosing I
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Ermoshin VA, Kazansky AK, Engel V. Quantum-classical molecular dynamics simulation of femtosecond spectroscopy on I2 in inert gases: Mechanisms for the decay of pump–probe signals. J Chem Phys 1999. [DOI: 10.1063/1.480116] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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Tarnovsky AN, Alvarez JL, Yartsev AP, Sundström V, Åkesson E. Photodissociation dynamics of diiodomethane in solution. Chem Phys Lett 1999. [DOI: 10.1016/s0009-2614(99)00916-1] [Citation(s) in RCA: 89] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zhong D, Bernhardt TM, Zewail AH. Femtosecond Real-Time Probing of Reactions. 24. Time, Velocity, and Orientation Mapping of the Dynamics of Dative Bonding in Bimolecular Electron Transfer Reactions. J Phys Chem A 1999. [DOI: 10.1021/jp9919359] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dongping Zhong
- Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California 91125
| | - Thorsten M. Bernhardt
- Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California 91125
| | - Ahmed H. Zewail
- Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California 91125
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Ooe H, Kimura Y, Terazima M, Hirota N. Photodissociation Quantum Yield of Iodine in the Low-, Medium-, and High-Density Fluids Studied by the Transient Grating Method. J Phys Chem A 1999. [DOI: 10.1021/jp991337u] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- H. Ooe
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Y. Kimura
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - M. Terazima
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - N. Hirota
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
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Nauta K, Miller RE. Solvent mediated vibrational relaxation: Superfluid helium droplet spectroscopy of HCN dimer. J Chem Phys 1999. [DOI: 10.1063/1.479627] [Citation(s) in RCA: 113] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Møller KB, Zewail AH. The concept of coherent resonances in the nuclear motion of bimolecular collisions: femtosecond probing and the classical picture. Chem Phys Lett 1999. [DOI: 10.1016/s0009-2614(99)00667-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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