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Unn-Toc W, Uranga-Piña L, Meier C, Halberstadt N, Rubayo-Soneira J. Quantum dynamics of solid Ne upon photo-excitation of a NO impurity: a Gaussian wave packet approach. J Chem Phys 2012; 137:054112. [PMID: 22894337 DOI: 10.1063/1.4739754] [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
A high-dimensional quantum wave packet approach based on Gaussian wave packets in Cartesian coordinates is presented. In this method, the high-dimensional wave packet is expressed as a product of time-dependent complex Gaussian functions, which describe the motion of individual atoms. It is applied to the ultrafast geometrical rearrangement dynamics of NO doped cryogenic Ne matrices after femtosecond laser pulse excitation. The static deformation of the solid due to the impurity as well as the dynamical response after femtosecond excitation are analyzed and compared to reduced dimensionality studies. The advantages and limitations of this method are analyzed in the perspective of future applications to other quantum solids.
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Affiliation(s)
- W Unn-Toc
- Laboratoire Collisions Agrègats et Réactivité, IRSAMC, UMR CNRS 5589, Université Paul Sabatier, 31062 Toulouse, France
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Uranga-Piña L, Meier C, Rubayo-Soneira J. Ultrafast, correlated multidimensional shell dynamics of neon matrices after photoexcitation of an NO impurity: An MCTDH approach. Chem Phys Lett 2012. [DOI: 10.1016/j.cplett.2012.05.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Uranga-Piña L, Meier C, Rubayo-Soneira J. Response of solid Ne upon photoexcitation of a NO impurity: A quantum dynamics study. J Chem Phys 2011; 135:164504. [DOI: 10.1063/1.3646507] [Citation(s) in RCA: 3] [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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Pajón-Suárez P, Rojas-Lorenzo GA, Rubayo-Soneira J, Hernández-Lamoneda R, Larrégaray P. On the Local Relaxation of Solid Neon upon Rydberg Excitation of a NO Impurity: The Role of the NO(A)−Ne Interaction Potential and Zero-Point Quantum Delocalization. J Phys Chem A 2009; 113:14399-406. [DOI: 10.1021/jp903538f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pedro Pajón-Suárez
- Instituto Superior de Tecnologías y Ciencias Aplicadas, Quinta de los Molinos, Avenida Salvador Allende y Luaces, Plaza C. Habana, Cuba, Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca, Morelos 62210, Mexico, and Institut des Sciences Moléculaires, Université Bordeaux 1/CNRS, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Germán A. Rojas-Lorenzo
- Instituto Superior de Tecnologías y Ciencias Aplicadas, Quinta de los Molinos, Avenida Salvador Allende y Luaces, Plaza C. Habana, Cuba, Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca, Morelos 62210, Mexico, and Institut des Sciences Moléculaires, Université Bordeaux 1/CNRS, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Jesús Rubayo-Soneira
- Instituto Superior de Tecnologías y Ciencias Aplicadas, Quinta de los Molinos, Avenida Salvador Allende y Luaces, Plaza C. Habana, Cuba, Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca, Morelos 62210, Mexico, and Institut des Sciences Moléculaires, Université Bordeaux 1/CNRS, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Ramón Hernández-Lamoneda
- Instituto Superior de Tecnologías y Ciencias Aplicadas, Quinta de los Molinos, Avenida Salvador Allende y Luaces, Plaza C. Habana, Cuba, Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca, Morelos 62210, Mexico, and Institut des Sciences Moléculaires, Université Bordeaux 1/CNRS, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Pascal Larrégaray
- Instituto Superior de Tecnologías y Ciencias Aplicadas, Quinta de los Molinos, Avenida Salvador Allende y Luaces, Plaza C. Habana, Cuba, Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca, Morelos 62210, Mexico, and Institut des Sciences Moléculaires, Université Bordeaux 1/CNRS, 351 Cours de la Libération, 33405 Talence Cedex, France
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Egorov SA, Larrégaray P. Absorption and emission lineshapes and ultrafast solvation dynamics of NO in parahydrogen. J Chem Phys 2008; 128:244502. [DOI: 10.1063/1.2943316] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Fushitani M, Miyamoto Y, Hoshina H, Momose T. In Situ Photolysis of CD3I in Solid Orthodeuterium. J Phys Chem A 2007; 111:12629-34. [DOI: 10.1021/jp0761113] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mizuho Fushitani
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan, and Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver BC, V6T1Z1, Canada
| | - Yuki Miyamoto
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan, and Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver BC, V6T1Z1, Canada
| | - Hiromichi Hoshina
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan, and Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver BC, V6T1Z1, Canada
| | - Takamasa Momose
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan, and Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver BC, V6T1Z1, Canada
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Bonacina L, Larrégaray P, van Mourik F, Chergui M. The ultrafast structural response of solid parahydrogen: A complementary experimental/simulation investigation. J Chem Phys 2006; 125:054507. [PMID: 16942226 DOI: 10.1063/1.2217736] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present a complete characterization, based on femtosecond pump-probe spectroscopy and molecular dynamics simulations, of the ultrafast dynamics of electronic bubble formation in solid parahydrogen upon impulsive excitation of impurity-doped sites, which correlate with the lowest Rydberg state of the NO impurity. The high temporal resolution of the experiment allows us to identify three time scales in the structural dynamics. A first ultrafast expansion (<150 fs), associated with the release of approximately 80% of the excess energy available to the system after excitation, is accompanied by a transient narrowing of the spatial distribution of the first shell of H2 molecules around the impurity. In a subsequent stage (up to approximately 800 fs), the cavity expansion slows down, and energy starts to flow irreversibly into the crystal. Finally, the lattice undergoes a slow structural reorganization at the impurity site (5-10 ps). A weak low-frequency recurrence, probably associated with an elastic response of the crystal, is observed at approximately 10 ps. The absence of polarization dependence indicates that the dynamics is largely dominated by translational (radial) motions of the molecules surrounding NO and not by the rotational motion of the impurity. Molecular dynamics simulations with temperature corrections, to mimic zero-point fluctuations, fully support the experimental results and show that the bubble model is suited to describe the dynamics of the system. It appears that the response of the medium around the impurity at short times is typical of a liquid solvent rather than that of a solid.
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Affiliation(s)
- L Bonacina
- Laboratoire de Spectroscopie Ultrarapide, ISIC, FSB-BSP, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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Polyakova E, Stolyarov D, Wittig C. Multiple photon excitation and ionization of NO in and on helium droplets. J Chem Phys 2006; 124:214308. [PMID: 16774408 DOI: 10.1063/1.2198844] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The photoexcitation of NO embedded in superfluid Hen nanodroplets having n approximately 10(4) has been examined. Two-photon excitation prepares electronically excited states (NO(*)), most notably, the embedded analog of the A 2Sigma state of gas phase NO. Vertical excitation to this low Rydberg state is blueshifted and broadened relative to its gas phase counterpart because of the repulsive electron-helium interaction. Transport to the droplet surface is believed to be facile in the superfluid. For example, NO* prefers (energetically) to reside at the droplet surface rather than at the droplet center, in contrast to NO. Photoionization of surface-bound NO* occurs over a significant photon energy range. This yields small cluster ions NO+Hek) with approximately 90% of these clusters having k< or =10. The variation of ion yield with photon energy displays a precipitous change in the region of 24 300-24 400 cm(-1) for all values of k. Possible photoionization mechanisms are discussed and it is suggested that intermediate levels with high-n Rydberg character play a role. This work underscores the important role played by transport in the photophysics of species embedded in the superfluid host.
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Affiliation(s)
- E Polyakova
- Department of Chemistry, Columbia University, New York, New York 10027, USA
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Bonacina L, Larrégaray P, van Mourik F, Chergui M. Lattice response of quantum solids to an impulsive local perturbation. PHYSICAL REVIEW LETTERS 2005; 95:015301. [PMID: 16090627 DOI: 10.1103/physrevlett.95.015301] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2005] [Indexed: 05/03/2023]
Abstract
The lattice response of solid para-H2 to an impulsive electronic excitation was studied using femtosecond pump-probe spectroscopy. The evolution of an electronic bubble in the crystal, created upon excitation of the A(3ssigma) Rydberg state of an NO impurity, was followed in real time, with a resolution of 100 fs. The experimental results, interpreted in connection with molecular dynamics simulations with quantum corrections, indicate the presence of three stages in the dynamics: a sub-100 fs "adiabatic" phase, a 0.5-1 ps phase, corresponding to the interaction of the first with the next shells driven by the bubble expansion, and a 5 ps phase, corresponding to a slow rearrangement of the environment surrounding the impurity. These findings indicate that the lattice response in solid para-H2 resembles that of a liquid.
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Affiliation(s)
- L Bonacina
- Laboratoire de Spectroscopie Ultrarapide, ISIC, FSB-BSP, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
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Wang X, Wolfe B, Andrews L. Emission Spectra of Group 13 Metal Atoms and Indium Hydrides in Solid H2 and D2. J Phys Chem A 2004. [DOI: 10.1021/jp0494887] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xuefeng Wang
- University of Virginia, Department of Chemistry, McCormick Road, P.O. Box 400319, Charlottesville, Virginia 22904-4319
| | - Bret Wolfe
- University of Virginia, Department of Chemistry, McCormick Road, P.O. Box 400319, Charlottesville, Virginia 22904-4319
| | - Lester Andrews
- University of Virginia, Department of Chemistry, McCormick Road, P.O. Box 400319, Charlottesville, Virginia 22904-4319
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Vigliotti F, Bonacina L, Chergui M. Structural dynamics in quantum solids. II. Real-time probing of the electronic bubble formation in solid hydrogens. J Chem Phys 2002. [DOI: 10.1063/1.1449946] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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