1
|
Tyuterev VG, Kochanov RV, Tashkun SA. Accurateab initiodipole moment surfaces of ozone: First principle intensity predictions for rotationally resolved spectra in a large range of overtone and combination bands. J Chem Phys 2017; 146:064304. [DOI: 10.1063/1.4973977] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
2
|
Grebenshchikov SY, Picconi D. Fano resonances in the photoinduced H-atom elimination dynamics in the πσ* states of pyrrole. Phys Chem Chem Phys 2017; 19:14902-14906. [DOI: 10.1039/c7cp01401e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interference is supported by two distinct dynamical scenarios controlled by two exit channel conical intersections between the πσ* states and the ground electronic state.
Collapse
Affiliation(s)
| | - David Picconi
- Department of Chemistry
- Technische Universität München
- 85747 Garching
- Germany
| |
Collapse
|
3
|
Pinelo LF, Kugel RW, Ault BS. Charge-Transfer Complexes and Photochemistry of Ozone with Ferrocene and n-Butylferrocene: A UV–vis Matrix-Isolation Study. J Phys Chem A 2015; 119:10272-8. [DOI: 10.1021/acs.jpca.5b07292] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Laura F. Pinelo
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
| | - Roger W. Kugel
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
| | - Bruce S. Ault
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
| |
Collapse
|
5
|
Tyuterev VG, Kochanov RV, Tashkun SA, Holka F, Szalay PG. New analytical model for the ozone electronic ground state potential surface and accurate ab initio vibrational predictions at high energy range. J Chem Phys 2013; 139:134307. [DOI: 10.1063/1.4821638] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
6
|
Grebenshchikov SY. Photodissociation of carbon dioxide in singlet valence electronic states. II. Five state absorption spectrum and vibronic assignment. J Chem Phys 2013; 138:224107. [PMID: 23781783 DOI: 10.1063/1.4808370] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Sergy Yu Grebenshchikov
- Department of Chemistry, Technical University of Munich, Lichtenbergstr. 4, 85747 Garching, Germany.
| |
Collapse
|
8
|
Holka F, Szalay PG, Müller T, Tyuterev VG. Toward an Improved Ground State Potential Energy Surface of Ozone. J Phys Chem A 2010; 114:9927-35. [DOI: 10.1021/jp104182q] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Filip Holka
- Faculty of Materials Science and Technology, Slovak University of Technology, Paulínska 16, 917 24 Trnava, Slovak Republic, Laboratory of Theoretical Chemistry, Institute of Chemistry,Eötvös University, P.O. Box 32, H-1518, Budapest 112, Hungary, Institute of Advanced Simulation, Jülich Supercomputer Centre, Research Centre Jülich GmbH D-52425 Jülich, Germany, and Groupe de Spectromé trie Moléculaire et Atmosphérique, Reims University, F-51687, Reims Cedex 2, France
| | - Péter G. Szalay
- Faculty of Materials Science and Technology, Slovak University of Technology, Paulínska 16, 917 24 Trnava, Slovak Republic, Laboratory of Theoretical Chemistry, Institute of Chemistry,Eötvös University, P.O. Box 32, H-1518, Budapest 112, Hungary, Institute of Advanced Simulation, Jülich Supercomputer Centre, Research Centre Jülich GmbH D-52425 Jülich, Germany, and Groupe de Spectromé trie Moléculaire et Atmosphérique, Reims University, F-51687, Reims Cedex 2, France
| | - Thomas Müller
- Faculty of Materials Science and Technology, Slovak University of Technology, Paulínska 16, 917 24 Trnava, Slovak Republic, Laboratory of Theoretical Chemistry, Institute of Chemistry,Eötvös University, P.O. Box 32, H-1518, Budapest 112, Hungary, Institute of Advanced Simulation, Jülich Supercomputer Centre, Research Centre Jülich GmbH D-52425 Jülich, Germany, and Groupe de Spectromé trie Moléculaire et Atmosphérique, Reims University, F-51687, Reims Cedex 2, France
| | - Vladimir G. Tyuterev
- Faculty of Materials Science and Technology, Slovak University of Technology, Paulínska 16, 917 24 Trnava, Slovak Republic, Laboratory of Theoretical Chemistry, Institute of Chemistry,Eötvös University, P.O. Box 32, H-1518, Budapest 112, Hungary, Institute of Advanced Simulation, Jülich Supercomputer Centre, Research Centre Jülich GmbH D-52425 Jülich, Germany, and Groupe de Spectromé trie Moléculaire et Atmosphérique, Reims University, F-51687, Reims Cedex 2, France
| |
Collapse
|
10
|
Abstract
The ground and low-lying states of ozone (O(3)) have been studied by multireference variational methods and large basis sets. We have constructed potential energy curves along the bending coordinate for (1,2) (1)A('), (1,2) (1)A("), (1,2) (3)A('), and (1,2) (3)A(") symmetries, optimizing at the same time the symmetric stretching coordinate. Thirteen minima have been located whose geometrical and energetic characteristics are in very good agreement with existing experimental data. Special emphasis has been given to the interpretation of the chemical bond through valence-bond-Lewis diagrams; their appropriate use captures admirably the bonding nature of the O(3) molecule. The biradical character of its ground state, adopted long ago by the scientific community, does not follow from a careful analysis of its wave function.
Collapse
Affiliation(s)
- Apostolos Kalemos
- Laboratory of Physical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, P.O. Box 64 004, Zografou, Athens 157 10, Greece.
| | | |
Collapse
|
12
|
Mota VC, Varandas AJC. HN2(2A‘) Electronic Manifold. II. Ab Initio Based Double-Sheeted DMBE Potential Energy Surface via a Global Diabatization Angle. J Phys Chem A 2008; 112:3768-86. [DOI: 10.1021/jp710610d] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vinícius C. Mota
- Departamento de Química, Universidade de Coimbra, 3004-535 Coimbra, Portugal
| | | |
Collapse
|
13
|
Penfold TJ, Worth GA. The photodissociation of ozone: A quasi-classical approach to a quantum dynamics problem. J Mol Graph Model 2007; 26:613-21. [PMID: 17337348 DOI: 10.1016/j.jmgm.2007.01.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2006] [Revised: 01/26/2007] [Accepted: 01/29/2007] [Indexed: 10/23/2022]
Abstract
It is extremely difficult to execute full quantum dynamics calculations on complex systems (more then three degrees of freedom) due to the exponential increase in computer resources required by these methods. Classical mechanics simulations do not suffer from this problem, but are unable to treat quantum mechanical phenomena such as non-adiabatic effects, which often play a vital role in photochemical processes. A method has been implemented for carrying out dynamical calculations using quasi-classical theory. The time dependent Schrödinger equation is solved using a swarm of trajectories treated under Newtonian laws and Tully's fewest switches trajectory surface hopping is applied to implement the surface switches. The method was applied to ozone, looking at the photodissociation that takes place after excitation into the Chappuis band of the absorption spectrum. While the goal is to treat larger systems, comparison can be made for ozone with numerically exact wavepacket calculations. The method proved successful at calculating quantities such as the rate of population transfer, but there were discrepancies in the details, especially when surface switching occurred from the lower state.
Collapse
Affiliation(s)
- Thomas J Penfold
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | | |
Collapse
|
14
|
Grebenshchikov SY, Qu ZW, Zhu H, Schinke R. New theoretical investigations of the photodissociation of ozone in the Hartley, Huggins, Chappuis, and Wulf bands. Phys Chem Chem Phys 2007; 9:2044-64. [PMID: 17464386 DOI: 10.1039/b701020f] [Citation(s) in RCA: 115] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We review recent theoretical studies of the photodissociation of ozone in the wavelength region from 200 nm to 1100 nm comprising four major absorption bands: Hartley and Huggins (near ultraviolet), Chappuis (visible), and Wulf (near infrared). The quantum mechanical dynamics calculations use global potential energy surfaces obtained from new high-level electronic structure calculations. Altogether nine electronic states are taken into account in the theoretical descriptions: four 1A', two 1A'', one 3A' and two 3A'' states. Of particular interest is the analysis of diffuse vibrational structures, which are prominent in all absorption bands, and their dynamical origin and assignment. Another focus is the effect of non-adiabatic coupling on lifetimes in the excited states and on the population of the specific electronic product channels.
Collapse
Affiliation(s)
- S Yu Grebenshchikov
- Max-Planck-Institut für Dynamik und Selbstorganisation, D-37073, Göttingen, Germany.
| | | | | | | |
Collapse
|