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Voznyuk O, Jochim B, Zohrabi M, Broin A, Averin R, Carnes KD, Ben-Itzhak I, Wells E. Adaptive strong-field control of vibrational population in NO 2+. J Chem Phys 2019; 151:124310. [DOI: 10.1063/1.5115504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- O. Voznyuk
- Department of Physics, Augustana University, Sioux Falls, South Dakota 57197, USA
| | - Bethany Jochim
- Department of Physics, Augustana University, Sioux Falls, South Dakota 57197, USA
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
| | - M. Zohrabi
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
| | - Adam Broin
- Department of Physics, Augustana University, Sioux Falls, South Dakota 57197, USA
| | - R. Averin
- Department of Physics, Augustana University, Sioux Falls, South Dakota 57197, USA
| | - K. D. Carnes
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
| | - I. Ben-Itzhak
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
| | - E. Wells
- Department of Physics, Augustana University, Sioux Falls, South Dakota 57197, USA
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Pandey A, Bapat B, Shamasundar KR. Charge symmetric dissociation of doubly ionized N2 and CO molecules. J Chem Phys 2014; 140:034319. [PMID: 25669391 DOI: 10.1063/1.4861665] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We report a comparative study of the features in dissociative double ionization by high energy electron impact of N2 and CO molecules. The ratio of cross-section of charge symmetric dissociative ionization to non-dissociative ionization (CSD-to-ND ratio) and the kinetic energy release (KER) spectra of dissociation are experimentally measured and carefully corrected for various ion transmission losses and detector inefficiencies. Given that the double ionization cross sections of these iso-electronic diatomics are very similar, the large difference in the CSD-to-ND ratios must be attributable to the differences in the evolution dynamics of the dications. To understand these differences, potential energy curves (PECs) of dications have been computed using multi-reference configuration interaction method. The Franck-Condon factors and tunneling life times of vibrational levels of dications have also been computed. While the KER spectrum of N2 (++) can be readily explained by considering dissociation via repulsive states and tunneling of meta-stable states, indirect dissociation processes such as predissociation and autoionization have to be taken into account to understand the major features of the KER spectrum of CO(++). Direct and indirect processes identified on the basis of the PECs and experimental KER spectra also provide insights into the differences in the CSD-to-ND ratios.
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Affiliation(s)
- A Pandey
- Physical Research Laboratory, Ahmedabad 380009, India
| | - B Bapat
- Physical Research Laboratory, Ahmedabad 380009, India
| | - K R Shamasundar
- Indian Institute of Science Education and Research, Mohali, Sector 81, SAS Nagar 140306, India
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Scheuermann F, Salzborn E, Hagelberg F, Scheier P. Formation and dissociation of triply charged fragment ions of benzene. J Chem Phys 2001. [DOI: 10.1063/1.1372756] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Handke G, Tarantelli F, Sgamellotti A, Cederbaum LS. Theoretical investigations of molecular triple ionization spectra. J Chem Phys 1996. [DOI: 10.1063/1.471696] [Citation(s) in RCA: 14] [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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Handke G, Tarantelli F, Cederbaum LS. Triple ionization of carbon monoxide. PHYSICAL REVIEW LETTERS 1996; 76:896-899. [PMID: 10061579 DOI: 10.1103/physrevlett.76.896] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Watson RL, Sampoll G, Horvat V, Heber O. Kinetic-energy release in the dissociative capture-ionization of CO molecules by 97-MeV Ar14+ ions. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1996; 53:1187-1190. [PMID: 9912999 DOI: 10.1103/physreva.53.1187] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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