1
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Reja D, Kumar S. He + +N 2 Charge Transfer Reaction: An Ab initio Analysis. Chemphyschem 2023; 24:e202200880. [PMID: 37071387 DOI: 10.1002/cphc.202200880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 04/16/2023] [Accepted: 04/17/2023] [Indexed: 04/19/2023]
Abstract
An ab initio analysis on the involved potential energy surfaces is presented for the investigation of the charge transfer mechanism for the He+ +N2 system. At high collision energy, as many as seven low-lying electronic states are observed to be involved in the charge transfer mechanism. Potential energy surfaces for these low-lying electronic states have been computed in the Jacobi scattering coordinates, applying multireference configuration interaction level of theory and aug-cc-pVQZ basis sets. Asymptotes for the ground and various excited states are assigned to mark the entrance (He+ +N2 ) and charge transfer channels (He+N2 + ). Nonadiabatic coupling matrix elements and quasi-diabatic potential energy surfaces have been computed for all seven states to rationalize the available experimental data on the charge transfer processes and to facilitate dynamics studies.
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Affiliation(s)
- Deboki Reja
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Sanjay Kumar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
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2
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Muchova E, Hollas D, Holland DMP, Bacellar C, Leroy L, Barillot TR, Longetti L, Coreno M, de Simone M, Grazioli C, Chergui M, Ingle RA. Jahn-Teller effects in initial and final states: high-resolution X-ray absorption, photoelectron and Auger spectroscopy of allene. Phys Chem Chem Phys 2023; 25:6733-6745. [PMID: 36799466 DOI: 10.1039/d2cp05299g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Carbon K-edge resonant Auger spectra of gas-phase allene following excitation of the pre-edge 1s → π* transitions are presented and analysed with the support of EOM-CCSD/cc-pVTZ calculations. X-Ray absorption (XAS), X-ray photoelectron (XPS), valence band and non-resonant Auger spectra are also reanalysed with a series of computational approaches. The results presented demonstrate the importance of including nuclear ensemble effects for simulating X-ray observables and as an effective strategy for capturing Jahn-Teller effects in spectra.
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Affiliation(s)
- Eva Muchova
- Department of Physical Chemistry, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic
| | - Daniel Hollas
- Centre for Computational Chemistry, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | | | - Camila Bacellar
- Laboratoire de Spectroscopie Ultrarapide, Ecole Polytechnique Fédérale de Lausanne, ISIC, FSB, CH-1015 Lausanne, Switzerland
| | - Ludmila Leroy
- Laboratoire de Spectroscopie Ultrarapide, Ecole Polytechnique Fédérale de Lausanne, ISIC, FSB, CH-1015 Lausanne, Switzerland
| | - Thomas R Barillot
- Laboratoire de Spectroscopie Ultrarapide, Ecole Polytechnique Fédérale de Lausanne, ISIC, FSB, CH-1015 Lausanne, Switzerland
| | - Luca Longetti
- Laboratoire de Spectroscopie Ultrarapide, Ecole Polytechnique Fédérale de Lausanne, ISIC, FSB, CH-1015 Lausanne, Switzerland
| | - Marcello Coreno
- ISM-CNR, Istituto di Struttura dei Materiali, LD2 Unit, 34149 Trieste, Italy
| | | | - Cesare Grazioli
- IOM-CNR, Istituto Officina dei Materiali, 34149 Trieste, Italy
| | - Majed Chergui
- Laboratoire de Spectroscopie Ultrarapide, Ecole Polytechnique Fédérale de Lausanne, ISIC, FSB, CH-1015 Lausanne, Switzerland
| | - Rebecca A Ingle
- Department of Chemistry, 20 Gordon Street, London, WC1H 0AJ, UK.
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3
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Garner MH, Laplaza R, Corminboeuf C. Helical versus linear Jahn–Teller distortions in allene and spiropentadiene radical cations. Phys Chem Chem Phys 2022; 24:26134-26143. [DOI: 10.1039/d2cp03544h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
The allene radical cation can be stabilized both by Jahn–Teller distortion of the bond lengths and by torsion of the end-groups.
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Affiliation(s)
- Marc H. Garner
- Laboratory for Computational Molecular Design, Institute of Chemical Sciences and Engineering, Ecole Polytechnique federale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Ruben Laplaza
- Laboratory for Computational Molecular Design, Institute of Chemical Sciences and Engineering, Ecole Polytechnique federale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Clemence Corminboeuf
- Laboratory for Computational Molecular Design, Institute of Chemical Sciences and Engineering, Ecole Polytechnique federale de Lausanne (EPFL), 1015 Lausanne, Switzerland
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4
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Kanakati AK, Jhansi Rani V, Mahapatra S. The Jahn-Teller and pseudo-Jahn-Teller effects in propyne radical cation. Phys Chem Chem Phys 2022; 24:16522-16537. [DOI: 10.1039/d2cp01930b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Jahn-Teller (JT) and pseudo-Jahn-Teller (PJT) effects in the X 2E, A 2E and B 2A1 electronic states of propyne radical cation are investigated with the aid of ab initio...
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5
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Ozcelik A, Aranda D, Gil‐Guerrero S, Pola‐Otero XA, Talavera M, Wang L, Behera SK, Gierschner J, Peña‐Gallego Á, Santoro F, Pereira‐Cameselle R, Alonso‐Gómez JL. Distinct Helical Molecular Orbitals through Conformational Lock**. Chemistry 2020; 26:17342-17349. [DOI: 10.1002/chem.202002561] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Ani Ozcelik
- Departamento de Química Orgánica Universidad de Vigo Campus Universitario 36310 Vigo Spain
| | - Daniel Aranda
- Istituto di Chimica dei Composti Organometallici Consiglio Nazionale delle Ricerche Pisa Italy
- Departamento de Química Física Universidad de Málaga Bulevar Louis Pasteur 31 Málaga 29010 Spain
| | - Sara Gil‐Guerrero
- Departamento de Química Física Universidad de Vigo Campus Universitario 36310 Vigo Spain
| | - Xaquín A. Pola‐Otero
- Departamento de Química Orgánica Universidad de Vigo Campus Universitario 36310 Vigo Spain
| | - Maria Talavera
- Department of Chemistry Humboldt Universität zu Berlin Brook-Taylor-Strasse 2 12489 Berlin Germany
| | - Liangxuan Wang
- Madrid Institute for Advanced Studies IMDEA Nanoscience C/ Faraday 9, Ciudad Universitaria de Cantoblanco 28049 Madrid Spain
| | - Santosh Kumar Behera
- Madrid Institute for Advanced Studies IMDEA Nanoscience C/ Faraday 9, Ciudad Universitaria de Cantoblanco 28049 Madrid Spain
| | - Johannes Gierschner
- Madrid Institute for Advanced Studies IMDEA Nanoscience C/ Faraday 9, Ciudad Universitaria de Cantoblanco 28049 Madrid Spain
| | - Ángeles Peña‐Gallego
- Departamento de Química Física Universidad de Vigo Campus Universitario 36310 Vigo Spain
| | - Fabrizio Santoro
- Istituto di Chimica dei Composti Organometallici Consiglio Nazionale delle Ricerche Pisa Italy
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6
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Mandal S, Ghosh S, Sardar S, Adhikari S. The TDDVR approach for molecular photoexcitation, molecule–surface and triatomic reactive scattering processes. INT REV PHYS CHEM 2018. [DOI: 10.1080/0144235x.2018.1548103] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Souvik Mandal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, India
| | - Sandip Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, India
| | | | - Satrajit Adhikari
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, India
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7
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Chin CH, Lin MY, Huang TP, Wu YJ. UV absorption spectrum of allene radical cations in solid argon. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 196:233-237. [PMID: 29454251 DOI: 10.1016/j.saa.2018.02.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 02/05/2018] [Accepted: 02/07/2018] [Indexed: 06/08/2023]
Abstract
Electron bombardment during deposition of an Ar matrix containing a small proportion of allene generated allene cations. Further irradiation of the matrix sample at 385 nm destroyed the allene cations and formed propyne cations in solid Ar. Both cations were identified according to previously reported IR absorption bands. Using a similar technique, we recorded the ultraviolet absorption spectrum of allene cations in solid Ar. The vibrationally resolved progression recorded in the range of 266-237 nm with intervals of about 800 cm-1 was assigned to the A2E ← X2E transition of allene cations, and the broad continuum absorption recorded in the region of 229-214 nm was assigned to their B2A1 ← X2E transition. These assignments were made based on the observed photolytic behavior of the progressions and the vertical excitation energies and oscillator strengths calculated using time-dependent density functional theory.
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Affiliation(s)
- Chih-Hao Chin
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu 30076, Taiwan
| | - Meng-Yeh Lin
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu 30076, Taiwan
| | - Tzu-Ping Huang
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu 30076, Taiwan
| | - Yu-Jong Wu
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu 30076, Taiwan; Department of Applied Chemistry, National Chiao Tung University, 1001, Ta-Hsueh Road, Hsinchu 30010, Taiwan.
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8
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Rabidoux SM, Eijkhout V, Stanton JF. Parallelization Strategy for Large-Scale Vibronic Coupling Calculations. J Phys Chem A 2014; 118:12059-68. [DOI: 10.1021/jp507880q] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Scott M. Rabidoux
- Institute
for Computational Engineering and Sciences, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Victor Eijkhout
- Texas Advanced Computing Center, Austin, Texas 78758, United States
| | - John F. Stanton
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
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9
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Bhattacharyya S, Opalka D, Poluyanov LV, Domcke W. The (E + A) × (e + a) Jahn–Teller and Pseudo-Jahn–Teller Hamiltonian Including Spin–Orbit Coupling for Trigonal Systems. J Phys Chem A 2014; 118:11962-70. [DOI: 10.1021/jp506793z] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Daniel Opalka
- Department
of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom
| | - Leonid V. Poluyanov
- Institute
of Chemical Physics, Academy of Sciences, Chernogolovka, Moscow 142432, Russia
| | - Wolfgang Domcke
- Department
of Chemistry, Technische Universität München, D-85748 Garching, Germany
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10
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Krause P, Matsika S. Nuclear dynamics for a three-state Jahn–Teller model system. J Chem Phys 2012; 136:034110. [DOI: 10.1063/1.3677273] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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11
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Opalka D, Poluyanov LV, Domcke W. Relativistic Jahn-Teller effects in the photoelectron spectra of tetrahedral P4, As4, Sb4, and Bi4. J Chem Phys 2011; 135:104108. [DOI: 10.1063/1.3629779] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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12
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Klein K, Garand E, Ichino T, Neumark DM, Gauss J, Stanton JF. Quantitative vibronic coupling calculations: the formyloxyl radical. Theor Chem Acc 2011. [DOI: 10.1007/s00214-011-0893-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Sardar S, Puzari P, Adhikari S. Multi-state multi-mode nuclear dynamics on three isomers of C6H4F+2 using parallelized TDDVR approach. Phys Chem Chem Phys 2011; 13:15960-72. [DOI: 10.1039/c1cp20525k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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14
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Schulenburg A, Merkt F. Internal rotation in Jahn–Teller coupled systems: The ethene and allene cations. Chem Phys 2010. [DOI: 10.1016/j.chemphys.2010.08.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Penfold T, Worth G. The effect of molecular distortions on spin–orbit coupling in simple hydrocarbons. Chem Phys 2010. [DOI: 10.1016/j.chemphys.2010.07.019] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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16
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Kumar R, Sivaranjana Reddy V, Mahapatra S. (B+E⊗b)⊗e Jahn–Teller and pseudo-Jahn–Teller effects in the spiropentane radical cation. Chem Phys 2010. [DOI: 10.1016/j.chemphys.2010.05.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Sardar S, Paul AK, Adhikari S. A parallelised quantum-classical approach to the molecular dynamics of allene radical cation. Mol Phys 2009. [DOI: 10.1080/00268970903362326] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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18
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Neumark DM. Slow electron velocity-map imaging of negative ions: applications to spectroscopy and dynamics. J Phys Chem A 2009; 112:13287-301. [PMID: 19032143 DOI: 10.1021/jp807182q] [Citation(s) in RCA: 186] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Anion photoelectron spectroscopy (PES) has become one of the most versatile techniques in chemical physics. This article briefly reviews the history of anion PES and some of its applications. It describes efforts to improve the resolution of this technique, including anion zero electron kinetic energy (ZEKE) and the recently developed method of slow electron velocity-map imaging (SEVI). Applications of SEVI to studies of vibronic coupling in open-shell systems and the spectroscopy of prereactive van der Waals complexes are then discussed.
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Affiliation(s)
- Daniel M Neumark
- Department of Chemistry, University of California, Berkeley, and Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
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19
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Worth GA, Meyer HD, Köppel H, Cederbaum LS, Burghardt I. Using the MCTDH wavepacket propagation method to describe multimode non-adiabatic dynamics. INT REV PHYS CHEM 2008. [DOI: 10.1080/01442350802137656] [Citation(s) in RCA: 170] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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20
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de Groot M, Buma WJ, Gromov EV, Burghardt I, Köppel H, Cederbaum LS. Combined experimental-theoretical study of the lower excited singlet states of paravinyl phenol, an analog of the paracoumaric acid chromophore. J Chem Phys 2006; 125:204303. [PMID: 17144696 DOI: 10.1063/1.2366702] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The low-lying excited singlet states of paravinyl phenol (pVP) are investigated experimentally and theoretically paying attention to their similarity to excited states of paracoumaric acid, the chromophore of the photoactive yellow protein (PYP). Resonance enhanced multiphoton ionization and laser induced fluorescence spectroscopic techniques are employed to obtain supersonically cooled, vibrationally resolved excitation and emission spectra related to the lowest (1)A'(V') excited state of pVP. Comprehensive analyses of the spectral structures are carried out by means of the equation-of-motion coupled cluster singles and doubles and time dependent density functional theory methods in combination with the linear vibronic coupling model and Franck-Condon calculations. The assignments of the spectral patterns are given, mostly in terms of excitations of totally symmetric modes. Weak activity of the non-totally-symmetric modes indicates low probability of photochemical processes in the Franck-Condon region of the (1)A'(V') state. The second (1)A'(V) and third (1)A" (Ryd) excited states of pVP are characterized with regard to their electronic structure, properties, and effects of geometry relaxations. The lengthening of the double bond relevant to the trans-cis isomerization of the PYP chromophore is found for the (1)A'(V) state. A possibility of photochemical processes and strong vibronic interactions in this state can be expected. The theoretical results for the (1)A"(Ryd) state predict that dissociation with respect to the O-H bond is possible.
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Affiliation(s)
- Mattijs de Groot
- Van't Hoff Institute for Molecular Sciences, Faculty of Science, University of Amsterdam, Nieuwe Achtergracht 127-129, 1018 WS Amsterdam, The Netherlands
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22
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Markmann A, Worth GA, Mahapatra S, Meyer HD, Köppel H, Cederbaum LS. Simulation of a complex spectrum: Interplay of five electronic states and 21 vibrational degrees of freedom in C5H4+. J Chem Phys 2005; 123:204310. [PMID: 16351259 DOI: 10.1063/1.2104531] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Using a five-state, all-mode vibronic coupling model Hamiltonian derived in a previous publication [A. Markmann et al., J. Chem. Phys. 122, 144320 (2005)], we have calculated the photoelectron spectrum of the pentatetraene cation in the neighborhood of the B (2)E state, which can be represented with charge-localized components. To this end, quantum nuclear dynamics calculations were performed using the multiconfiguration time-dependent Hartree method, taking all 21 vibrational normal modes into account. Compared to experiment, the main features are reproduced but higher accuracy experiments are necessary to gauge the accuracy of the predictions for the vibronic progressions at the rising flank of the spectrum.
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Affiliation(s)
- Andreas Markmann
- Theoretische Chemie, Technische Universität München, Lichtenbergstrasse 4, 85 747 Garching, Germany.
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23
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Markmann A, Worth GA, Cederbaum LS. Allene and pentatetraene cations as models for intramolecular charge transfer: vibronic coupling Hamiltonian and conical intersections. J Chem Phys 2005; 122:144320. [PMID: 15847535 DOI: 10.1063/1.1867433] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We consider the vibronic coupling effects involving cationic states with degenerate components that can be represented as charge localized at either end of the short cumulene molecules allene and pentatetraene. Our aim is to simulate dynamically the charge transfer process when one component is artificially depopulated. We model the Jahn-Teller vibronic interaction within these states as well as their pseudo-Jahn-Teller coupling with some neighboring states. For the manifold of these states, we have calculated cross sections of the ab initio adiabatic potential energy surfaces along all nuclear degrees of freedom, including points at large distances from the equilibrium to increase the physical significance of our model. Ab initio calculations for the cationic states of allene and pentatetraene were based on the fourth-order Møller-Plesset method and the outer valence Green's function method. In some cases we had to go beyond this method and use the more involved third-order algebraic diagrammatic construction method to include intersections with satellite states. The parameters for a five-state, all-mode diabatic vibronic coupling model Hamiltonian were least-square fitted to these potentials. The coupling parameters for the diabatic model Hamiltonian are such that, in comparison to allene, an enhanced preference for indirect charge transfer is predicted for pentatetraene.
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Affiliation(s)
- Andreas Markmann
- Theoretische Chemie, Physikalisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 229, 69 120 Heidelberg, Germany
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24
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Ryb I, Baer R. Combinatorial invariants and covariants as tools for conical intersections. J Chem Phys 2004; 121:10370-5. [PMID: 15549915 DOI: 10.1063/1.1808695] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The combinatorial invariant and covariant are introduced as practical tools for analysis of conical intersections in molecules. The combinatorial invariant is a quantity depending on adiabatic electronic states taken at discrete nuclear configuration points. It is invariant to the phase choice (gauge) of these states. In the limit that the points trace a loop in nuclear configuration space, the value of the invariant approaches the corresponding Berry phase factor. The Berry phase indicates the presence of an odd or even number of conical intersections on surfaces bounded by these loops. Based on the combinatorial invariant, we develop a computationally simple and efficient method for locating conical intersections. The method is robust due to its use of gauge invariant nature. It does not rely on the landscape of intersecting potential energy surfaces nor does it require the computation of nonadiabatic couplings. We generalize the concept to open paths and combinatorial covariants for higher dimensions obtaining a technique for the construction of the gauge-covariant adiabatic-diabatic transformation matrix. This too does not make use of nonadiabatic couplings. The importance of using gauge-covariant expressions is underlined throughout. These techniques can be readily implemented by standard quantum chemistry codes.
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Affiliation(s)
- Itai Ryb
- Department of Physical Chemistry and the Lise Meitner Minerva-Center for Quantum Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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25
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Dreuw A, Worth GA, Cederbaum LS, Head-Gordon M. Ultrafast Photoinitiated Long-Range Electron Transfer in Cyclophane-Bridged Zincporphyrin−Quinone Complexes via Conical Intersections. J Phys Chem B 2004. [DOI: 10.1021/jp048244j] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andreas Dreuw
- Institut für Physikalische und Theoretische Chemie, Johann Wolfgang Goethe-Universität Frankfurt, Marie-Curie-Strasse 11, 60439 Frankfurt, Germany
| | - Graham A. Worth
- Department of Chemistry, King's College London, Strand, London WC2R2LS, United Kingdom
| | - Lorenz S. Cederbaum
- Theoretische Chemie, Physikalisch-Chemisches Institut, Ruprecht Karls-Universität, INF 229, 69120 Heidelberg, Germany
| | - Martin Head-Gordon
- Department of Chemistry, University of California, Berkeley, and Chemical Sciences and Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720-1470
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26
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Gromov EV, Trofimov AB, Vitkovskaya NM, Köppel H, Schirmer J, Meyer HD, Cederbaum LS. Theoretical study of excitations in furan: Spectra and molecular dynamics. J Chem Phys 2004; 121:4585-98. [PMID: 15332889 DOI: 10.1063/1.1780160] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The excitation spectra and molecular dynamics of furan associated with its low-lying excited singlet states 1A2(3s), 1B2(V), 1A1(V'), and 1B1(3p) are investigated using an ab initio quantum-dynamical approach. The ab initio results of our previous work [J. Chem. Phys. 119, 737 (2003)] on the potential energy surfaces (PES) of these states indicate that they are vibronically coupled with each other and subject to conical intersections. This should give rise to complex nonadiabatic nuclear dynamics. In the present work the dynamical problem is treated using adequate vibronic coupling models accounting for up to four coupled PES and thirteen vibrational degrees of freedom. The calculations were performed using the multiconfiguration time-dependent Hartree method for wave-packet propagation. It is found that in the low-energy region the nuclear dynamics of furan is governed mainly by vibronic coupling of the 1A2(3s) and 1B2(V) states, involving also the 1A1(V') state. These interactions are responsible for the ultrafast internal conversion from the 1B2(V) state, characterized by a transfer of the electronic population to the 1A2(3s) state on a time scale of approximately 25 fs. The calculated photoabsorption spectrum of furan is in good qualitative agreement with experimental data. Some assignments of the measured spectrum are proposed.
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Affiliation(s)
- E V Gromov
- Laboratory of Quantum Chemistry, Computer Center, Irkutsk State University, 664003 Irkutsk, Russian Federation
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27
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Multimode Jahn–Teller and pseudo-Jahn–Teller coupling effects in the photoelectron spectrum of CH3F. Chem Phys 2004. [DOI: 10.1016/j.chemphys.2004.04.021] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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28
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Venkatesan TS, Mahapatra S, Cederbaum LS, Köppel H. Theoretical Investigation of Jahn−Teller Dynamics in the 2E‘ Electronic Ground State of the Cyclopropane Radical Cation. J Phys Chem A 2004. [DOI: 10.1021/jp037468j] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Köppel H, Döscher M, Bâldea I, Meyer HD, Szalay PG. Multistate vibronic interactions in the benzene radical cation. II. Quantum dynamical simulations. J Chem Phys 2002. [DOI: 10.1063/1.1491398] [Citation(s) in RCA: 115] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Deretey E, Shapiro M, Brumer P. Chiral Molecules with Achiral Excited States: A Computational Study of 1,3-Dimethylallene. J Phys Chem A 2001. [DOI: 10.1021/jp010557g] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Eugen Deretey
- Chemical Physics Theory Group, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
| | - Moshe Shapiro
- Chemical Physics Theory Group, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
| | - Paul Brumer
- Chemical Physics Theory Group, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
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Cattarius C, Worth GA, Meyer HD, Cederbaum LS. All mode dynamics at the conical intersection of an octa-atomic molecule: Multi-configuration time-dependent Hartree (MCTDH) investigation on the butatriene cation. J Chem Phys 2001. [DOI: 10.1063/1.1384872] [Citation(s) in RCA: 109] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Worth G, Cederbaum L. Mediation of ultrafast electron transfer in biological systems by conical intersections. Chem Phys Lett 2001. [DOI: 10.1016/s0009-2614(01)00132-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Bersuker IB. Modern aspects of the Jahn-Teller effect theory and applications to molecular problems. Chem Rev 2001; 101:1067-114. [PMID: 11709858 DOI: 10.1021/cr0004411] [Citation(s) in RCA: 426] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- I B Bersuker
- Institute for Theoretical Chemistry, Department of Chemistry & Biochemistry, University of Texas at Austin, Austin, Texas 78712, USA.
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Mahapatra S, Worth GA, Meyer HD, Cederbaum LS, Köppel H. The Ã2E/B̃2B2 Photoelectron Bands of Allene beyond the Linear Coupling Scheme: An ab Initio Dynamical Study Including All Fifteen Vibrational Modes. J Phys Chem A 2001. [DOI: 10.1021/jp003727i] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S. Mahapatra
- Department of Theoretical Chemistry, University of Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany, and School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
| | - G. A. Worth
- Department of Theoretical Chemistry, University of Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany, and School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
| | - H.-D. Meyer
- Department of Theoretical Chemistry, University of Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany, and School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
| | - L. S. Cederbaum
- Department of Theoretical Chemistry, University of Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany, and School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
| | - H. Köppel
- Department of Theoretical Chemistry, University of Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany, and School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
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