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Cerezo J, Santoro F. Revisiting Vertical Models To Simulate the Line Shape of Electronic Spectra Adopting Cartesian and Internal Coordinates. J Chem Theory Comput 2016; 12:4970-4985. [PMID: 27586086 DOI: 10.1021/acs.jctc.6b00442] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Vertical models for the simulation of spectroscopic line shapes expand the potential energy surface (PES) of the final state around the equilibrium geometry of the initial state. These models provide, in principle, a better approximation of the region of the band maximum. At variance, adiabatic models expand each PES around its own minimum. In the harmonic approximation, when the minimum energy structures of the two electronic states are connected by large structural displacements, adiabatic models can breakdown and are outperformed by vertical models. However, the practical application of vertical models faces the issues related to the necessity to perform a frequency analysis at a nonstationary point. In this contribution we revisit vertical models in harmonic approximation adopting both Cartesian (x) and valence internal curvilinear coordinates (s). We show that when x coordinates are used, the vibrational analysis at nonstationary points leads to a deficient description of low-frequency modes, for which spurious imaginary frequencies may even appear. This issue is solved when s coordinates are adopted. It is however necessary to account for the second derivative of s with respect to x, which here we compute analytically. We compare the performance of the vertical model in the s-frame with respect to adiabatic models and previously proposed vertical models in x- or Q1-frame, where Q1 are the normal coordinates of the initial state computed as combination of Cartesian coordinates. We show that for rigid molecules the vertical approach in the s-frame provides a description of the final state very close to the adiabatic picture. For sizable displacements it is a solid alternative to adiabatic models, and it is not affected by the issues of vertical models in x- and Q1-frames, which mainly arise when temperature effects are included. In principle the G matrix depends on s, and this creates nonorthogonality problems of the Duschinsky matrix connecting the normal modes of initial and final states in adiabatic approaches. We highlight that such a dependence of G on s is also an issue in vertical models, due to the necessity to approximate the kinetic term in the Hamiltonian when setting up the so-called GF problem. When large structural differences exist between the initial and the final-state minima, the changes in the G matrix can become too large to be disregarded.
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Affiliation(s)
- Javier Cerezo
- Istituto di Chimica dei Composti OrganoMetallici, Consiglio Nazionale delle Richerche (ICCOM-CNR) , Area della Ricerca, via G. Moruzzi 1, I-56124 Pisa, Italy
| | - Fabrizio Santoro
- Istituto di Chimica dei Composti OrganoMetallici, Consiglio Nazionale delle Richerche (ICCOM-CNR) , Area della Ricerca, via G. Moruzzi 1, I-56124 Pisa, Italy
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Petrone A, Cerezo J, Ferrer FJA, Donati G, Improta R, Rega N, Santoro F. Absorption and Emission Spectral Shapes of a Prototype Dye in Water by Combining Classical/Dynamical and Quantum/Static Approaches. J Phys Chem A 2015; 119:5426-38. [DOI: 10.1021/jp510838m] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Alessio Petrone
- Dipartimento di
Scienze Chimiche, Università di Napoli ‘Federico II’, Complesso Universitario di M.S. Angelo, via Cintia, I-80126 Napoli, Italy
| | - Javier Cerezo
- CNR−Consiglio
Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), UOS di Pisa, Area della Ricerca, via G. Moruzzi 1, I-56124 Pisa, Italy
| | - Francisco J. Avila Ferrer
- CNR−Consiglio
Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), UOS di Pisa, Area della Ricerca, via G. Moruzzi 1, I-56124 Pisa, Italy
- Physical Chemistry, Faculty of Science, University of Málaga, Málaga, 29071, Spain
| | - Greta Donati
- Dipartimento di
Scienze Chimiche, Università di Napoli ‘Federico II’, Complesso Universitario di M.S. Angelo, via Cintia, I-80126 Napoli, Italy
| | - Roberto Improta
- CNR−Consiglio
Nazionale delle Ricerche, Istituto di Biostrutture e Bioimmagini (IBB-CNR), via Mezzocannone 16, I-80136 Napoli, Italy
| | - Nadia Rega
- Dipartimento di
Scienze Chimiche, Università di Napoli ‘Federico II’, Complesso Universitario di M.S. Angelo, via Cintia, I-80126 Napoli, Italy
- Italian Institute
of Technology, IIT@CRIB Center for Advanced Biomaterials for Healthcare, Largo Barsanti e Matteucci, I-80125 Napoli, Italy
| | - Fabrizio Santoro
- CNR−Consiglio
Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), UOS di Pisa, Area della Ricerca, via G. Moruzzi 1, I-56124 Pisa, Italy
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3
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Ma H, Zhao Y, Liang W. Assessment of mode-mixing and Herzberg-Teller effects on two-photon absorption and resonance hyper-Raman spectra from a time-dependent approach. J Chem Phys 2014; 140:094107. [PMID: 24606353 DOI: 10.1063/1.4867273] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
A time-dependent approach is presented to simulate the two-photon absorption (TPA) and resonance hyper-Raman scattering (RHRS) spectra including Duschinsky rotation (mode-mixing) and Herzberg-Teller (HT) vibronic coupling effects. The computational obstacles for the excited-state geometries, vibrational frequencies, and nuclear derivatives of transition dipole moments, which enter the expressions of TPA and RHRS cross sections, are further overcome by the recently developed analytical excited-state energy derivative approaches in the framework of time-dependent density functional theory. The excited-state potential curvatures are evaluated at different levels of approximation to inspect the effects of frequency differences, mode-mixing and HT on TPA and RHRS spectra. Two types of molecules, one with high symmetry (formaldehyde, p-difluorobenzene, and benzotrifluoride) and the other with non-centrosymmetry (cis-hydroxybenzylidene-2,3-dimethylimidazolinone in the deprotonated anion state (HDBI(-))), are used as test systems. The calculated results reveal that it is crucial to adopt the exact excited-state potential curvatures in the calculations of TPA and RHRS spectra even for the high-symmetric molecules, and that the vertical gradient approximation leads to a large deviation. Furthermore, it is found that the HT contribution is evident in the TPA and RHRS spectra of HDBI(-) although its one- and two-photon transitions are strongly allowed, and its effect results in an obvious blueshift of the TPA maximum with respect to the one-photon absorption maximum. With the HT and solvent effects getting involved, the simulated blueshift of 1291 cm(-1) agrees well with the experimental measurement.
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Affiliation(s)
- HuiLi Ma
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and Institute of Fujian Provincial Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
| | - Yi Zhao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and Institute of Fujian Provincial Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
| | - WanZhen Liang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and Institute of Fujian Provincial Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
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Bohinc R, Žitnik M, Bučar K, Kavčič M. Dissociation dynamics of simple chlorine containing molecules upon resonant Cl K-σ* excitation. J Chem Phys 2014; 140:164304. [DOI: 10.1063/1.4871878] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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Cerezo J, Zúñiga J, Requena A, Ávila Ferrer FJ, Santoro F. Harmonic Models in Cartesian and Internal Coordinates to Simulate the Absorption Spectra of Carotenoids at Finite Temperatures. J Chem Theory Comput 2013; 9:4947-58. [DOI: 10.1021/ct4005849] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Javier Cerezo
- Departamento de Química
Física, Universidad de Murcia, 30100 Murcia, Spain
| | - José Zúñiga
- Departamento de Química
Física, Universidad de Murcia, 30100 Murcia, Spain
| | - Alberto Requena
- Departamento de Química
Física, Universidad de Murcia, 30100 Murcia, Spain
| | - Francisco J. Ávila Ferrer
- CNR−Consiglio Nazionale
delle Ricerche, Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), UOS di Pisa, Area della Ricerca, via G. Moruzzi 1, I-56124 Pisa, Italy and
- Physical Chemistry, Faculty of Science, University of Málaga, Málaga 29071, Spain
| | - Fabrizio Santoro
- CNR−Consiglio
Nazionale delle Ricerche, Istituto di Chimica dei Composti Organo Metallici (ICCOM-CNR), UOS di Pisa, Area della Ricerca, via G. Moruzzi 1, I-56124 Pisa, Italy
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Padula D, Di Bari L, Santoro F, Gerlach H, Rizzo A. Analysis of the Electronic Circular Dichroism Spectrum of (−)-[9](2,5)Pyridinophane. Chirality 2012; 24:994-1004. [DOI: 10.1002/chir.22087] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Accepted: 05/30/2012] [Indexed: 12/28/2022]
Affiliation(s)
- Daniele Padula
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa; Pisa Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa; Pisa Italy
| | - Fabrizio Santoro
- Consiglio Nazionale delle Ricerche - CNR; Istituto di Chimica dei Composti Organo Metallici (ICCOM-CNR), UOS di Pisa, Area della Ricerca; Pisa Italy
| | - Hans Gerlach
- Department of Chemistry; University of Bayreuth; Bayreuth Germany
| | - Antonio Rizzo
- Consiglio Nazionale delle Ricerche - CNR; Istituto per i Processi Chimico-Fisici (IPCF-CNR); Pisa Italy
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7
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Lin N, Solheim H, Ruud K, Nooijen M, Santoro F, Zhao X, Kwit M, Skowronek P. Vibrationally resolved circular dichroism spectra of a molecule with isotopically engendered chirality. Phys Chem Chem Phys 2012; 14:3669-80. [PMID: 22314548 DOI: 10.1039/c2cp23584f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present a theoretical study of vibrationally resolved circular dichroism spectra, both in the adiabatic and non-adiabatic frameworks, with a full account of Franck-Condon and Herzberg-Teller vibrational contributions for the former. Model calculations have been performed on 2(R)-deuteriocyclopentanone, whose chirality is due solely to isotopic substitution. This molecule has two distinct, nearly isoenergetic, half-chair conformations in equilibrium, and its demanding nature in terms of computational accuracy makes it a perfect candidate for performing a detailed comparison between different vibronic models. Comparisons are made with experimental spectra, and we also consider temperature effects. In order to reproduce the experimental spectrum, it is necessary to consider the geometry relaxation occurring during the n→π* transition.
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Affiliation(s)
- Na Lin
- Centre for Theoretical and Computational Chemistry, Department of Chemistry, University of Tromsø, N-9037 Tromsø, Norway
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Eland JHD, Fink RF, Linusson P, Hedin L, Plogmaker S, Feifel R. Single and multiple photoionisation of H2S by 40–250 eV photons. Phys Chem Chem Phys 2011; 13:18428-35. [DOI: 10.1039/c1cp21654f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Lin N, Santoro F, Zhao X, Rizzo A, Barone V. Vibronically Resolved Electronic Circular Dichroism Spectra of (R)-(+)-3-Methylcyclopentanone: A Theoretical Study. J Phys Chem A 2008; 112:12401-11. [DOI: 10.1021/jp8064695] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Na Lin
- Department of Theoretical Chemistry, School of Biotechnology, Royal Institute of Technology, SE-10691 Stockholm, Sweden, Institute of Crystal Materials, Shandong University, 250100 Jinan, Shandong, People’s Republic of China, and Area della Ricerca, Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche (IPCF-CNR), Via G. Moruzzi 1, I-56124 Pisa, Italy
| | - Fabrizio Santoro
- Department of Theoretical Chemistry, School of Biotechnology, Royal Institute of Technology, SE-10691 Stockholm, Sweden, Institute of Crystal Materials, Shandong University, 250100 Jinan, Shandong, People’s Republic of China, and Area della Ricerca, Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche (IPCF-CNR), Via G. Moruzzi 1, I-56124 Pisa, Italy
| | - Xian Zhao
- Department of Theoretical Chemistry, School of Biotechnology, Royal Institute of Technology, SE-10691 Stockholm, Sweden, Institute of Crystal Materials, Shandong University, 250100 Jinan, Shandong, People’s Republic of China, and Area della Ricerca, Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche (IPCF-CNR), Via G. Moruzzi 1, I-56124 Pisa, Italy
| | - Antonio Rizzo
- Department of Theoretical Chemistry, School of Biotechnology, Royal Institute of Technology, SE-10691 Stockholm, Sweden, Institute of Crystal Materials, Shandong University, 250100 Jinan, Shandong, People’s Republic of China, and Area della Ricerca, Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche (IPCF-CNR), Via G. Moruzzi 1, I-56124 Pisa, Italy
| | - Vincenzo Barone
- Department of Theoretical Chemistry, School of Biotechnology, Royal Institute of Technology, SE-10691 Stockholm, Sweden, Institute of Crystal Materials, Shandong University, 250100 Jinan, Shandong, People’s Republic of China, and Area della Ricerca, Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche (IPCF-CNR), Via G. Moruzzi 1, I-56124 Pisa, Italy
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Vall-Llosera G, Melero García E, Kivimäki A, Rachlew E, Coreno M, de Simone M, Richter R, Prince KC. Fluorescence emission from photo-fragments after resonant S 2p excitations in H2S. Phys Chem Chem Phys 2007; 9:389-95. [PMID: 17199155 DOI: 10.1039/b610199b] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Visible-UV fluorescence emission of gas-phase hydrogen sulfide, H(2)S, has been studied at the S 2p edge with synchrotron radiation excitation. Dispersed fluorescence measurements in the wavelength range 300-900 nm were taken at several photon energies corresponding to the excitations of the S 2p electrons to the unoccupied molecular and Rydberg orbitals. The spectra reveal fluorescence from the H, S, S(+), HS and HS(+) photo-fragments. H is found to be the strongest emitter at Rydberg excitations, while the emission from S(+) is dominant at the molecular resonances and above the S 2p ionization thresholds. The intensities of hydrogen Lyman-alpha (122 nm), Balmer-alpha (656 nm), Balmer-beta (486 nm) transitions as well as the visible-UV total fluorescence yield (300-900 nm) and the total ion yield were measured by scanning the photon energy in small steps across the S 2p edge. The different Balmer lines show some sensitivity to the specific core excitations, which is, however, not so strong as that recently observed in the water molecule [E. Melero García, A. Kivimäki, L. G. M. Pettersson, J. Alvarez Ruiz, M. Coreno, M. de Simone, R. Richter and K. C. Prince, Phys. Rev. Lett., 2006, 96, 063003].
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Affiliation(s)
- G Vall-Llosera
- Royal Institute of Technology, Department of Physics, AlbaNova University Center, 10691 Stockholm, Sweden.
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11
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Lago AF, Dávalos JZ, Kerdpin U, Schlachter AS. Cationic and Anionic Fragmentation of Dichloromethane following Inner-Shell (Cl 1s) Photoexcitation. J Phys Chem A 2006; 110:13717-23. [PMID: 17181326 DOI: 10.1021/jp063423h] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The cationic and anionic fragmentation of dichloromethane (CH2Cl2) molecule have been investigated in the energy range of the Cl K shell by using synchrotron radiation, ion yield spectroscopy, and electron-ion coincidence spectroscopy. Total and partial ion-yield and mass spectra have been recorded as a function of the photon energy. We were able to identify several singly and multiply charged cationic fragments and the following anionic species: H-; C-; Cl-. The present results provide the first experimental report of negative ion formation from a molecule excited at the Cl 1s edge. In addition, our electron-ion coincidence data provide strong evidence of the preservation of molecular alignment for the photodissociation of CH2Cl2 after deep core-electron resonant excitation.
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Affiliation(s)
- A F Lago
- Department of Chemistry, University of North Carolina, Chapel Hill, NC 27599-3290, USA.
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12
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Scott GE, Irikura KK. Electron-Impact Ionization Cross Sections of Molecules Containing Heavy Elements (Z > 10). J Chem Theory Comput 2005; 1:1153-61. [DOI: 10.1021/ct050077j] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Gregory E. Scott
- Department of Chemistry, Davidson College, Davidson, North Carolina 28035-7120
| | - Karl K. Irikura
- Computational Chemistry Group, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8380
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13
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Guillemin R, Stolte WC, Dang LTN, Yu SW, Lindle DW. Fragmentation dynamics of H2S following S 2p photoexcitation. J Chem Phys 2005; 122:094318. [PMID: 15836139 DOI: 10.1063/1.1860012] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The fragmentation dynamics of core-excited H(2)S has been studied by means of partial anion and cation yield measurements around the S L(2,3)-subshell ionization thresholds. All detectable ionic fragments are reported, and significant differences between partial ion yields are observed. Possible dissociation pathways are discussed by comparison to previous studies of electron spectra.
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Affiliation(s)
- R Guillemin
- Department of Chemistry, University of Nevada, Las Vegas, Nevada 89154-4003, USA
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14
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Scott GE, Irikura KK. Performance of binary-encounter-Bethe (BEB) theory for electron-impact ionization cross sections of molecules containing heavy elements (Z > 10). SURF INTERFACE ANAL 2005. [DOI: 10.1002/sia.2091] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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15
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16
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Kolczewski C, Püttner R, Plashkevych O, Ågren H, Staemmler V, Martins M, Snell G, Schlachter AS, Sant’Anna M, Kaindl G, Pettersson LGM. Detailed study of pyridine at the C 1sand N 1sionization thresholds: The influence of the vibrational fine structure. J Chem Phys 2001. [DOI: 10.1063/1.1397797] [Citation(s) in RCA: 226] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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17
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Ehara M, Ishida M, Nakatsuji H. Theoretical study on the outer- and inner-valence ionization spectra of H2O, H2S and H2Se using the SAC-CI general-R method. J Chem Phys 2001. [DOI: 10.1063/1.1367372] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Plashkevych O, Privalov T, Ågren H, Carravetta V, Ruud K. On the validity of the equivalent cores approximation for computing X-ray photoemission and photoabsorption spectral bands. Chem Phys 2000. [DOI: 10.1016/s0301-0104(00)00171-3] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Naves de Brito A, Svensson S, Osborne SJ, Ausmees A, Kivimäki A, Sairanen OP, Nõmmiste E, Aksela H, Aksela S, Saethre LJ. Auger decay of the molecular field split S 2p core excited states in HS radical. J Chem Phys 1997. [DOI: 10.1063/1.473035] [Citation(s) in RCA: 15] [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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Schulte HD, Cederbaum LS, Tarantelli F. Core‐valence doubly ionized states: General aspects, examples, production mechanisms. J Chem Phys 1996. [DOI: 10.1063/1.472912] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Siggel MRF, Field C, Sæthre LJ, Bo/rve KJ, Thomas TD. High resolution photoelectron spectroscopy of sulfur 2p electrons in H2S, SO2, CS2, and OCS. J Chem Phys 1996. [DOI: 10.1063/1.472761] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.7] [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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An experimental investigation of the double ionization of hydrogen sulphide to triplet electronic states of the dication. Chem Phys Lett 1996. [DOI: 10.1016/0009-2614(96)00271-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Gel'mukhanov F, gren H, Svensson S, Aksela H, Aksela S. Theory of Auger spectra for molecular-field-split core levels. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1996; 53:1379-1387. [PMID: 9913027 DOI: 10.1103/physreva.53.1379] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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28
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Svensson S, Ausmees A, Osborne SJ, Bray G, Gel'mukhanov F, Ågren H, Sairanen O, Kivimäki A, Nõmmiste E, Aksela H, Aksela S. Observation of an anomalous decay ratio between the molecular field split levels in the S 2p core photoelectron and LVV Auger spectrum of H2S. PHYSICAL REVIEW LETTERS 1994; 72:3021-3024. [PMID: 10056047 DOI: 10.1103/physrevlett.72.3021] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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29
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All ab initio Auger spectra of HF and LiF: energies, intensities and vibrational shifts and broadenings. Chem Phys Lett 1993. [DOI: 10.1016/0009-2614(93)85548-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Correia N, Wannberg B, Baltzer P, Karlsson L, Svensson S, Adam MY, Aksela H, Aksela S. Vibrationally resolved states in the HS fragment studied by means of electron-excited Auger spectroscopy. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1992; 46:6067-6070. [PMID: 9908867 DOI: 10.1103/physreva.46.6067] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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31
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Double-charge-transfer spectrometry and the measurement of electronic-state energies of doubly charged ions. ACTA ACUST UNITED AC 1992. [DOI: 10.1016/0168-1176(92)80050-b] [Citation(s) in RCA: 59] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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32
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gren H. Nonradiative and dissociative decay channels of core-excited H2S studied by ab initio calculations. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1992; 45:7953-7962. [PMID: 9906886 DOI: 10.1103/physreva.45.7953] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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33
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Pettersson LGM, Karlsson L, Keane MP, Naves de Brito A, Correia N, Larsson M, Broström L, Mannervik S, Svensson S. The x‐ray excited Auger electron spectrum of NO and potential curves and photodissociation of the NO2+ ion. J Chem Phys 1992. [DOI: 10.1063/1.462778] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Cesar A, gren H. State interference in resonance Auger and x-ray emission. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1992; 45:2833-2841. [PMID: 9907315 DOI: 10.1103/physreva.45.2833] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Cederbaum LS, Campos P, Tarantelli F, Sgamellotti A. Band shape and vibrational structure in Auger spectra: Theory and application to carbon monoxide. J Chem Phys 1991. [DOI: 10.1063/1.461533] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Correia N, Naves de Brito A, Keane MP, Karlsson L, Svensson S, Liegener C, Cesar A, Ågren H. Doubly charged valence states of formaldehyde, acetaldehyde, acetone, and formamide studied by means of photon excited Auger electron spectroscopy and ab initio calculations. J Chem Phys 1991. [DOI: 10.1063/1.461687] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Svensson S, Keane MP, Correia N, Karlsson L. Observation of an energy shift in the S2p3/2-S2p1/2 spin-orbit splitting between x-ray photoelectron and Auger-electron spectra for the H2S molecule. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1991; 43:6441-6443. [PMID: 9904990 DOI: 10.1103/physreva.43.6441] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Bozek JD, Bancroft GM, Tan KH. Vibrational fine structure in the Si 2p photoelectron spectra of simple gaseous molecules. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1991; 43:3597-3608. [PMID: 9905447 DOI: 10.1103/physreva.43.3597] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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