51
|
Varga K. Solution of the time-dependent Schrödinger equation using time-dependent basis functions. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2012; 85:016705. [PMID: 22400699 DOI: 10.1103/physreve.85.016705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2011] [Revised: 12/08/2011] [Indexed: 05/31/2023]
Abstract
The time-dependent Schrödinger equation is solved by using an explicitly time-dependent basis. This approach allows efficient reflection-free time propagation of the wave function. The applicability of the method is illustrated by solving various time-dependent problems including the calculation of the above threshold ionization of a model atom and the optical absorption spectrum of a sodium dimer.
Collapse
Affiliation(s)
- Kálmán Varga
- Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235, USA
| |
Collapse
|
52
|
Pylkkänen T, Sakko A, Hakala M, Hämäläinen K, Monaco G, Huotari S. Temperature Dependence of the Near-Edge Spectrum of Water. J Phys Chem B 2011; 115:14544-50. [DOI: 10.1021/jp2015462] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tuomas Pylkkänen
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
- European Synchrotron Radiation Facility, B.P. 220, F-38043 Grenoble, France
| | - Arto Sakko
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - Mikko Hakala
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - Keijo Hämäläinen
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - Giulio Monaco
- European Synchrotron Radiation Facility, B.P. 220, F-38043 Grenoble, France
| | - Simo Huotari
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
- European Synchrotron Radiation Facility, B.P. 220, F-38043 Grenoble, France
| |
Collapse
|
53
|
|
54
|
Fischer MK, Rossmadl H, Iglev H. Novel geminate recombination channel after indirect photoionization of water. J Chem Phys 2011; 134:214507. [PMID: 21663367 DOI: 10.1063/1.3597776] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
We studied the photolysis of neat protonated and heavy water using pump-probe and pump-repump-probe spectroscopy. A novel recombination channel is reported leading to ultrafast quenching (0.7 ± 0.1 ps) of almost one third of the initial number of photo-generated electrons. The efficiency and the recombination rate of this channel are lower in heavy water, 27 ± 5% and (0.9 ± 0.1 ps)(-1), respectively. Comparison with similar data measured after photodetachment of aqueous hydroxide provides evidence for the formation of short-lived OH:e(-) (OD:e(-)) pairs after indirect photoionization of water at 9.2 eV.
Collapse
Affiliation(s)
- Martin K Fischer
- Physik-Department E 11, Technische Universität München, D-85748 Garching, Germany
| | | | | |
Collapse
|
55
|
Ljungberg MP, Pettersson LGM, Nilsson A. Vibrational interference effects in x-ray emission of a model water dimer: Implications for the interpretation of the liquid spectrum. J Chem Phys 2011; 134:044513. [DOI: 10.1063/1.3533956] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
56
|
Livshits E, Granot RS, Baer R. A Density Functional Theory for Studying Ionization Processes in Water Clusters. J Phys Chem A 2010; 115:5735-44. [DOI: 10.1021/jp1057572] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Ester Livshits
- Fritz Haber Center for Molecular Dynamics, Chaim Weizmann Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Rebecca S. Granot
- Fritz Haber Center for Molecular Dynamics, Chaim Weizmann Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Roi Baer
- Fritz Haber Center for Molecular Dynamics, Chaim Weizmann Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| |
Collapse
|
57
|
Pylkkänen T, Giordano VM, Chervin JC, Sakko A, Hakala M, Soininen JA, Hämäläinen K, Monaco G, Huotari S. Role of non-hydrogen-bonded molecules in the oxygen K-edge spectrum of ice. J Phys Chem B 2010; 114:3804-8. [PMID: 20187617 DOI: 10.1021/jp912208v] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report the oxygen K-edge spectra of ices Ih, VI, VII, and VIII measured with X-ray Raman scattering. The pre-edge and main-edge contributions increase strongly with density, even though the hydrogen bond arrangements are very similar in these phases. While the near-edge spectral features in water and ice have often been linked to hydrogen bonding, we show that the spectral changes in the phases studied here can be quantitatively related to structural changes in the second coordination shell. Density-functional theory calculations reproduce the experimental results and support the conclusion. Our results suggest that non-hydrogen-bonded neighbors can have a significant effect also in the liquid water spectrum. We discuss the implications of the results for the actively debated interpretation of the liquid water spectrum in terms of local structure.
Collapse
Affiliation(s)
- Tuomas Pylkkänen
- Department of Physics, P.O. Box 64, FI-00014, University of Helsinki, Finland.
| | | | | | | | | | | | | | | | | |
Collapse
|
58
|
Wikfeldt KT, Leetmaa M, Mace A, Nilsson A, Pettersson LGM. Oxygen-oxygen correlations in liquid water: Addressing the discrepancy between diffraction and extended x-ray absorption fine-structure using a novel multiple-data set fitting technique. J Chem Phys 2010; 132:104513. [DOI: 10.1063/1.3330752] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
59
|
Wang Z, Zhang L, Cukier RI, Bu Y. States and migration of an excess electron in a pyridinium-based, room-temperature ionic liquid: an ab initio molecular dynamics simulation exploration. Phys Chem Chem Phys 2010; 12:1854-61. [DOI: 10.1039/b921104g] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
60
|
|
61
|
Odelius M. Information Content in O[1s] K-edge X-ray Emission Spectroscopy of Liquid Water. J Phys Chem A 2009; 113:8176-81. [DOI: 10.1021/jp903096k] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michael Odelius
- FYSIKUM, Stockholm University, Albanova, S-106 91 Stockholm, Sweden
| |
Collapse
|
62
|
Wang Z, Zhang L, Chen X, Cukier RI, Bu Y. Excess Electron Solvation in an Imidazolium-Based Room-Temperature Ionic Liquid Revealed by Ab Initio Molecular Dynamics Simulations. J Phys Chem B 2009; 113:8222-6. [DOI: 10.1021/jp902575s] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhiping Wang
- The Center for Modeling & Simulation Chemistry, Institute of Theoretical Chemistry, Shandong University, Jinan, 250100, People’s Republic of China, and Department of Chemistry, Michigan State University, East Lansing, Michigan 48823
| | - Liang Zhang
- The Center for Modeling & Simulation Chemistry, Institute of Theoretical Chemistry, Shandong University, Jinan, 250100, People’s Republic of China, and Department of Chemistry, Michigan State University, East Lansing, Michigan 48823
| | - Xiaohua Chen
- The Center for Modeling & Simulation Chemistry, Institute of Theoretical Chemistry, Shandong University, Jinan, 250100, People’s Republic of China, and Department of Chemistry, Michigan State University, East Lansing, Michigan 48823
| | - Robert I. Cukier
- The Center for Modeling & Simulation Chemistry, Institute of Theoretical Chemistry, Shandong University, Jinan, 250100, People’s Republic of China, and Department of Chemistry, Michigan State University, East Lansing, Michigan 48823
| | - Yuxiang Bu
- The Center for Modeling & Simulation Chemistry, Institute of Theoretical Chemistry, Shandong University, Jinan, 250100, People’s Republic of China, and Department of Chemistry, Michigan State University, East Lansing, Michigan 48823
| |
Collapse
|
63
|
Wikfeldt KT, Leetmaa M, Ljungberg MP, Nilsson A, Pettersson LGM. On the Range of Water Structure Models Compatible with X-ray and Neutron Diffraction Data. J Phys Chem B 2009; 113:6246-55. [DOI: 10.1021/jp9007619] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Kjartan T. Wikfeldt
- FYSIKUM, AlbaNova University Center, Stockholm University, SE-106 91 Stockholm, Sweden, and Stanford Synchrotron Radiation Laboratory, P.O. Box 20450, Stanford, California 94309
| | - Mikael Leetmaa
- FYSIKUM, AlbaNova University Center, Stockholm University, SE-106 91 Stockholm, Sweden, and Stanford Synchrotron Radiation Laboratory, P.O. Box 20450, Stanford, California 94309
| | - Mathias P. Ljungberg
- FYSIKUM, AlbaNova University Center, Stockholm University, SE-106 91 Stockholm, Sweden, and Stanford Synchrotron Radiation Laboratory, P.O. Box 20450, Stanford, California 94309
| | - Anders Nilsson
- FYSIKUM, AlbaNova University Center, Stockholm University, SE-106 91 Stockholm, Sweden, and Stanford Synchrotron Radiation Laboratory, P.O. Box 20450, Stanford, California 94309
| | - Lars G. M. Pettersson
- FYSIKUM, AlbaNova University Center, Stockholm University, SE-106 91 Stockholm, Sweden, and Stanford Synchrotron Radiation Laboratory, P.O. Box 20450, Stanford, California 94309
| |
Collapse
|
64
|
Lindblad A, Bergersen H, Pokapanich W, Tchaplyguine M, Ohrwall G, Björneholm O. Charge delocalization dynamics of ammonia in different hydrogen bonding environments: free clusters and in liquid water solution. Phys Chem Chem Phys 2009; 11:1758-64. [PMID: 19290347 DOI: 10.1039/b815657c] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Valence and core level photoelectron spectra and Auger electron spectra of ammonia in pure clusters have been measured. The Auger electron spectra of gas-phase ammonia, pure ammonia clusters and ammonia in aqueous solution are compared and interpreted via ab initio calculations of the Auger spectrum of the ammonia monomer and dimer. The calculations reveal that the final two-hole valence states can be delocalized over both ammonia molecules. Features at energies pertaining to delocalized states involving one, or more, hydrogen bonding orbitals can be found in both the ammonia cluster Auger electron spectrum and in that of the liquid solvated molecule. The lower Coulombic repulsion between two delocalized valence final state holes gives higher kinetic energy of the Auger electrons which is also observed in the spectra. This decay path--specific to the condensed phase--is responsible for more than 5% of the total cluster Auger intensity. Moreover, this interpretation is also applicable to the solid phase since the same features have been observed, but not assigned, in the Auger spectrum of solid ammonia.
Collapse
Affiliation(s)
- A Lindblad
- Dep. of Physics and Materials Sciences, Uppsala University, Box 530, SE-751 21, Uppsala, Sweden.
| | | | | | | | | | | |
Collapse
|
65
|
Huse N, Wen H, Nordlund D, Szilagyi E, Daranciang D, Miller TA, Nilsson A, Schoenlein RW, Lindenberg AM. Probing the hydrogen-bond network of water via time-resolved soft X-ray spectroscopy. Phys Chem Chem Phys 2009; 11:3951-7. [PMID: 19440624 DOI: 10.1039/b822210j] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report time-resolved studies of hydrogen bonding in liquid H(2)O, in response to direct excitation of the O-H stretch mode at 3 mum, probed via soft X-ray absorption spectroscopy at the oxygen K-edge. This approach employs a newly developed nanofluidic cell for transient soft X-ray spectroscopy in the liquid phase. Distinct changes in the near-edge spectral region (XANES) are observed, and are indicative of a transient temperature rise of 10 K following transient laser excitation and rapid thermalization of vibrational energy. The rapid heating occurs at constant volume and the associated increase in internal pressure, estimated to be 8 MPa, is manifested by distinct spectral changes that differ from those induced by temperature alone. We conclude that the near-edge spectral shape of the oxygen K-edge is a sensitive probe of internal pressure, opening new possibilities for testing the validity of water models and providing new insight into the nature of hydrogen bonding in water.
Collapse
Affiliation(s)
- Nils Huse
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
66
|
Elles CG, Rivera CA, Zhang Y, Pieniazek PA, Bradforth SE. Electronic structure of liquid water from polarization-dependent two-photon absorption spectroscopy. J Chem Phys 2009; 130:084501. [DOI: 10.1063/1.3078336] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
|
67
|
Brown MA, Faubel M, Winter B. X-Ray photo- and resonant Auger-electron spectroscopy studies of liquid water and aqueous solutions. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b803023p] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
68
|
|
69
|
Jay-Gerin JP, Lin M, Katsumura Y, He H, Muroya Y, Meesungnoen J. Effect of water density on the absorption maximum of hydrated electrons in sub- and supercritical water up to 400 °C. J Chem Phys 2008; 129:114511. [DOI: 10.1063/1.2978955] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
|
70
|
|
71
|
Tay KA, Coudert FX, Boutin A. Mechanism and kinetics of hydrated electron diffusion. J Chem Phys 2008; 129:054505. [DOI: 10.1063/1.2964101] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
72
|
Fister TT, Seidler GT, Shirley EL, Vila FD, Rehr JJ, Nagle KP, Linehan JC, Cross JO. The local electronic structure of alpha-Li3N. J Chem Phys 2008. [PMID: 18681665 DOI: 10.1103/physrevb.79.174117] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023] Open
Abstract
New theoretical and experimental investigations of the occupied and unoccupied local electronic densities of states (DOS) are reported for alpha-Li(3)N. Band-structure and density-functional theory calculations confirm the absence of covalent bonding character. However, real-space full-multiple-scattering (RSFMS) calculations of the occupied local DOS find less extreme nominal valences than have previously been proposed. Nonresonant inelastic x-ray scattering, RSFMS calculations, and calculations based on the Bethe-Salpeter equation are used to characterize the unoccupied electronic final states local to both the Li and N sites. There is a good agreement between experiment and theory. Throughout the Li 1s near-edge region, both experiment and theory find strong similarities in the s-and p-type components of the unoccupied local final DOS projected onto an orbital angular momentum basis (l-DOS). An unexpected, significant correspondence exists between the near-edge spectra for the Li 1s and N 1s initial states. We argue that both spectra are sampling essentially the same final DOS due to the combination of long core-hole lifetimes, long photoelectron lifetimes, and the fact that orbital angular momentum is the same for all relevant initial states. Such considerations may be generally applicable for low atomic number compounds.
Collapse
Affiliation(s)
- T T Fister
- Physics Department, University of Washington, Seattle, Washington 98195, USA
| | | | | | | | | | | | | | | |
Collapse
|
73
|
High resolution X-ray emission spectroscopy of liquid water: The observation of two structural motifs. Chem Phys Lett 2008. [DOI: 10.1016/j.cplett.2008.04.077] [Citation(s) in RCA: 298] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
74
|
Nordlund D, Odelius M, Bluhm H, Ogasawara H, Pettersson L, Nilsson A. Electronic structure effects in liquid water studied by photoelectron spectroscopy and density functional theory. Chem Phys Lett 2008. [DOI: 10.1016/j.cplett.2008.04.096] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
75
|
Iannuzzi M. X-ray absorption spectra of hexagonal ice and liquid water by all-electron Gaussian and augmented plane wave calculations. J Chem Phys 2008; 128:204506. [DOI: 10.1063/1.2928842] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
76
|
Stähler J, Bovensiepen U, Meyer M, Wolf M. A surface science approach to ultrafast electron transfer and solvation dynamics at interfaces. Chem Soc Rev 2008; 37:2180-90. [DOI: 10.1039/b800257f] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
77
|
Meyer M, Stähler J, Kusmierek DO, Wolf M, Bovensiepen U. Determination of the electron’s solvation site on D2O/Cu(111) using Xe overlayers and femtosecond photoelectron spectroscopy. Phys Chem Chem Phys 2008; 10:4932-8. [DOI: 10.1039/b807314g] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|