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Dengel H, Merz A, Müller M, Gérard K, Ruf MW, Hotop H. Electron-ion coincidence study of ionizing thermal energy collisions between He*(21S) and Ar atoms. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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2
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Hapka M, Chałasiński G, Kłos J, Żuchowski PS. First-principle interaction potentials for metastable He(3S) and Ne(3P) with closed-shell molecules: Application to Penning-ionizing systems. J Chem Phys 2013; 139:014307. [DOI: 10.1063/1.4812182] [Citation(s) in RCA: 18] [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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3
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Wright TG, Gray BR, Viehland LA, Johnsen R. Interaction potentials, spectroscopy, and transport properties of Ne+–He and He+–Ne. J Chem Phys 2008; 129:184307. [DOI: 10.1063/1.3009262] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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4
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The Calculation of Potential Energy Surfaces for Excited States. ADVANCES IN CHEMICAL PHYSICS 2007. [DOI: 10.1002/9780470142745.ch8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register]
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5
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Horio T, Maeda S, Kishimoto N, Ohno K. Anisotropic interaction and stereoreactivity in a chemi-ionization process of OCS by collision with He*(2(3)S) metastable atoms. J Phys Chem A 2006; 110:11010-7. [PMID: 16986833 DOI: 10.1021/jp0637781] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Ionic-state-resolved collision energy dependence of Penning ionization cross sections for OCS with He*(2(3)S) metastable atoms was measured in a wide collision energy range from 20 to 350 meV. Anisotropic interaction potential for the OCS-He*(2(3)S) system was obtained by comparison of the experimental data with classical trajectory simulations. It has been found that attractive potential wells around the O and S atoms are clearly different in their directions. Around the O atom, the collinear approach is preferred (the well depth is ca. 90 meV), while the perpendicular approach is favored around the S atom (the well depth is ca. 40 meV). On the basis of the optimized potential energy surface and theoretical simulations, stereo reactivity around the O and S atoms was also investigated. The results were discussed in terms of anisotropy of the potential energy surface and the electron density distribution of molecular orbitals to be ionized.
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Affiliation(s)
- Takuya Horio
- Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
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Horio T, Hatamoto T, Maeda S, Kishimoto N, Ohno K. Probing anisotropic interaction potentials of unsaturated hydrocarbons with He*(2 3S) metastable atom: attractive-site preference of sigma-direction in C2H2 and pi-direction in C2H4. J Chem Phys 2006; 124:104308. [PMID: 16542080 DOI: 10.1063/1.2178298] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
State-resolved collision energy dependence of Penning ionization cross sections of acetylene (C2H2) and ethylene (C2H4) with He*(2 3S) metastable atoms was observed in a wide collision energy range from 20 to 350 meV. A recently developed discharge nozzle source with a liquid N2 circulator was employed for the measurements in the low-energy range from 20 to 80 meV. Based on classical trajectory calculations for the energy dependence of the partial ionization cross sections, anisotropic potential energy surfaces for the present systems were obtained by optimizing ab initio model potentials for the chemically related systems Li+C2H2 and C2H4. In the case of C2H2, the global minimum was found to be located around the H atom along the molecular axis with a well depth of 48 meV (ca. 1.1 kcal/mol). On the other hand, a dominant attractive well with a depth of 62 meV (ca. 1.4 kcal/mol) was found in the piCC electron region of C2H4. These findings were discussed in connection with orbital interactions between molecular orbitals of the target molecules and atomic orbitals of the metastable atom. It is concluded that sigma-type unoccupied molecular orbitals of C2H2 and a piCC-type highest occupied molecular orbital of C2H4 play a significant role for the attractive-site preference of sigma direction in C2H2 and pi direction in C2H4, respectively.
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Affiliation(s)
- Takuya Horio
- Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Sendai 980-8578, Japan
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8
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Pirani F, Maciel GS, Cappelletti D, Aquilanti V. Experimental benchmarks and phenomenology of interatomic forces: open-shell and electronic anisotropy effects. INT REV PHYS CHEM 2006. [DOI: 10.1080/01442350600674033] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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9
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Horio T, Yamazaki M, Maeda S, Hatamoto T, Kishimoto N, Ohno K. Development of a cooled He*(23S) beam source for measurements of state-resolved collision energy dependence of Penning ionization cross sections: Evidence for a stereospecific attractive well around methyl group in CH3CN. J Chem Phys 2005; 123:194308. [PMID: 16321089 DOI: 10.1063/1.2114808] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A low-temperature discharge nozzle source with a liquid-N(2) circulator for He*(2(3)S) metastable atoms has been developed in order to obtain the state-resolved collision energy dependence of Penning ionization cross sections in a low collision energy range from 20 to 80 meV. By controlling the discharge condition, we have made it possible to measure the collision energy dependence of partial ionization cross sections (CEDPICS) for a well-studied system of CH(3)CN+He*(2(3)S) in a wide energy range from 20 to 350 meV. The anisotropic interaction potential energy surface for the present system was obtained starting from an ab initio model potential via an optimization procedure based on classical trajectory calculations for the observed CEDPICS. A dominant attractive well depth was found to be 423 meV (ca. 10 kcal/mol) at a distance of 3.20 A from the center of mass of CH(3)CN in the N-atom side along the CCN axis. In addition, a weak attractive well (ca. 0.9 kcal/mol) surrounding the methyl group (-CH(3)) has been found and ascribed to the interaction between an unoccupied molecular orbital of CH(3)CN and 2s atomic orbital of He*(2(3)S).
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Affiliation(s)
- Takuya Horio
- Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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Biondini F, Brunetti BG, Candori P, De Angelis F, Falcinelli S, Tarantelli F, Pirani F, Vecchiocattivi F. Penning ionization of N2O molecules by He*(2S3,1) and Ne*(P2,03) metastable atoms: Theoretical considerations about the intermolecular interactions. J Chem Phys 2005; 122:164308. [PMID: 15945685 DOI: 10.1063/1.1884605] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A theoretical investigation of the intermolecular interaction, operative in collision complexes of He*(2 3S1), He*(2 1S0), and Ne*(3P2,0) with N2O, is carried out to explain the main results of the experimental study reported in the preceding paper. The analysis is carried out by means of a semiempirical method based on the identification, modeling, and combination of the leading interaction components, including the effect of the selective polarization of the more external electronic cloud of the metastable atom in the intermolecular electric field. These and other crucial aspects of our approach have been quantitatively verified by ab initio calculations. The proposed method permits to evaluate the interaction at any configuration of the complexes and provides a useful and inexpensive representation of the intermolecular potential energy for dynamics studies. The main experimental findings can be rationalized taking into account the critical balancing between molecular orientation effects in the intermolecular interaction field and the ionization probability. These orientation effects tend to become less pronounced with increasing collision energy.
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Affiliation(s)
- Francesco Biondini
- Dipartimento di Ingegneria Civile ed Ambientale, Università di Perugia, 06125 Perugia, Italy
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11
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Biondini F, Brunetti BG, Candori P, De Angelis F, Falcinelli S, Tarantelli F, Moix Teixidor M, Pirani F, Vecchiocattivi F. Penning ionization of N2O molecules by He*(2S3,1) and Ne*(P2,03) metastable atoms: A crossed beam study. J Chem Phys 2005; 122:164307. [PMID: 15945684 DOI: 10.1063/1.1884604] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The energetics of [Rg... N2O]* autoionizing collision complexes (where Rg=He or Ne) and their dynamical evolution have been studied in a crossed beam apparatus, respectively, by Penning ionization electron spectroscopy (PIES) and by mass spectrometry (MS) techniques in the thermal energy range. The PIES spectra, detected by an electron energy analyzer, were recorded for both complexes at four different collision energies. Such spectra allowed the determination of the energy shifts for Penning electron energy distributions, and the branching ratios for the population of different electronic states and for the vibrational population in the molecular nascent ions. For the [Ne...N2O]* collision complex it was found, by MS, that the autoionization leads to the formation of N2O+, NO+, O+, and NeN2O+ product ions whose total and partial cross sections were measured in the collision energy range between 0.03 and 0.2 eV. The results are analyzed exploiting current models for the Penning ionization process: the observed collision energy dependence in the PIES spectra as well as in the cross sections are correlated with the nature of the N2O molecule orbitals involved in the ionization and are discussed in term of the Rg-N2O interaction potentials, which are estimated by using a semiempirical method developed in our laboratory.
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Affiliation(s)
- Francesco Biondini
- Dipartimento di Ingegneria Civile ed Ambientale, Università di Perugia, 06125 Perugia, Italy
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Maeda S, Yamazaki M, Kishimoto N, Ohno K. An overlap expansion method for improvingab initiomodel potentials: Anisotropic intermolecular potentials of N2, CO, and C2H2 with He*(2 3S). J Chem Phys 2004; 120:781-90. [PMID: 15267914 DOI: 10.1063/1.1630954] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
An overlap expansion method is proposed for improving ab initio model potentials. Correction terms are expanded in terms of overlap integrals between orbitals of the interacting system. The method is used to improve ab initio model potentials for N2+He*(2(3)S), CO+He*(2(3)S), and C2H2+He*(2(3)S). Physical meanings of the optimization are elucidated in terms of target orbitals. Correction terms are found to be dominated by the components of HOMO, LUMO, next-HOMO, and next-LUMO on the target molecule. The present overlap expansion method using a limited number of correction terms related to frontier orbitals provides an efficient and intuitive approach for construction of highly anisotropic intermolecular interaction potentials.
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Affiliation(s)
- Satoshi Maeda
- Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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13
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Patil S, Tang K, Toennies J. Perturbation calculations of the van der Waals potentials of He(2 3S, 2 1S) metastable atoms with rare gas atoms. Chem Phys Lett 2002. [DOI: 10.1016/s0009-2614(02)01092-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Yamazaki M, Maeda S, Kishimoto N, Ohno K. Classical trajectory calculations for collision-energy/electron-energy resolved two-dimensional Penning ionization electron spectra of N2, CO, and CH3CN with metastable He*(2 3S) atoms. J Chem Phys 2002. [DOI: 10.1063/1.1503312] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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15
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Feltgen R, Ferkel H, Helbing RKB, Lindinger A, Pikorz D, Vehmeyer H. The chemi-ionization of He*(2 1,3S)+Ar,Kr,Xe for collision energies from 0.003 to 6 eV. J Chem Phys 1999. [DOI: 10.1063/1.480103] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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16
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Haberland H, Weber W. Optical interaction potentials from differential cross section measurements at thermal energies. III. He(21S)+Na. ACTA ACUST UNITED AC 1999. [DOI: 10.1088/0022-3700/13/21/010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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17
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Buermann L, Burdenski S, Feltgen R, Hoffmann G. Chemi-ionisation of Xe in thermal collisions with He*(21S) and He*(23S) metastable atoms. ACTA ACUST UNITED AC 1999. [DOI: 10.1088/0022-3700/20/12/025] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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18
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Brutschy B, Haberland H, Werner F. On the structure of the He(21S)+Ar potential energy curve. ACTA ACUST UNITED AC 1999. [DOI: 10.1088/0022-3700/15/5/016] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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19
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Falcetta MF, Siska PE. Theoretical study of ion–molecule potentials for He+ and Li+ with N2. J Chem Phys 1998. [DOI: 10.1063/1.477312] [Citation(s) in RCA: 12] [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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20
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Longley EJ, Siska PE. Angle-energy distributions of Penning ions in crossed molecular beams. III. Angle-energy coupling in He*(2 1S,2 3S)+Ar→He+Ar++e−. J Chem Phys 1997. [DOI: 10.1063/1.473626] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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21
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Dunlavy DC, Siska PE. Probing the Transition State of the He*(2S) + N2 Penning Ionization Reaction with Electron Spectroscopy. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp952230j] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- D. C. Dunlavy
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - P. E. Siska
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
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22
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Last I, George TF. Theoretical study of small Ar*nclusters in low‐lying electronic states. J Chem Phys 1993. [DOI: 10.1063/1.464805] [Citation(s) in RCA: 17] [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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23
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Feltgen R, Ferkel H, Helbing RKB, Pikorz D, Vehmeyer H. State‐selected chemiionization cross sections of He*(2 1,3S)+Xe for collision energies from 0.003 to 6 eV. J Chem Phys 1993. [DOI: 10.1063/1.464175] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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24
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Boltjes B, de Graaf C, de Leeuw SW. Computation of the energyV0of an excess electron in dense helium and argon. J Chem Phys 1993. [DOI: 10.1063/1.464601] [Citation(s) in RCA: 19] [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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25
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State-selected chemiionization cross sections of He* (2 1,3S)+Ar for collision energies from 0.003 to 5.5 eV. Chem Phys Lett 1992. [DOI: 10.1016/0009-2614(92)87022-h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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26
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Space B, Coker DF, Liu ZH, Berne BJ, Martyna G. Density dependence of excess electronic ground‐state energies in simple atomic fluids. J Chem Phys 1992. [DOI: 10.1063/1.463138] [Citation(s) in RCA: 62] [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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27
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Martyna G, Cheng C, Klein ML. Electronic states and dynamical behavior of LiXen and CsXen clusters. J Chem Phys 1991. [DOI: 10.1063/1.461115] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Simon SH, Dobrosavljevic V, Stratt RM. Semiclassical percolation approach to electronic states in simple fluids. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1990; 42:6278-6281. [PMID: 9903922 DOI: 10.1103/physreva.42.6278] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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29
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Dunlavy DC, Martin DW, Siska PE. Collision energy dependence of Penning ionization electron spectra in crossed supersonic beams: He*(2 1S)+N2. J Chem Phys 1990. [DOI: 10.1063/1.459655] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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30
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Johnsen R, Tosh R, Viehland LA. Mobility of helium ions in neon: Comparison of theory and experiment. J Chem Phys 1990. [DOI: 10.1063/1.458212] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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31
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Martin DW, Fukuyama T, Siska PE. Multichannel analysis of He*(21S)+Ne elastic and inelastic scattering in crossed atomic beams. J Chem Phys 1990. [DOI: 10.1063/1.458367] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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32
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Monchicourt P, Pradel P, Dubreuil D, Laucagne JJ. Laser-assisted ionization as the only process consistent with experiment. PHYSICAL REVIEW. A, GENERAL PHYSICS 1989; 40:1147-1149. [PMID: 9902244 DOI: 10.1103/physreva.40.1147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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33
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Fukuyama T, Siska PE. A curve‐crossing model for He*(23S)+Ne collisions consistent with differential and total scattering cross sections, and quenching rate constants. J Chem Phys 1989. [DOI: 10.1063/1.456241] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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34
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Sonnenfroh DM, Leone SR. Bimodal rotational distributions of N2+ produced in the thermal energy penning ionization of N2 by Ne*(3P2). ACTA ACUST UNITED AC 1987. [DOI: 10.1016/0168-1176(87)87022-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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35
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Coker DF, Berne BJ, Thirumalai D. Path integral Monte Carlo studies of the behavior of excess electrons in simple fluids. J Chem Phys 1987. [DOI: 10.1063/1.452495] [Citation(s) in RCA: 170] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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36
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Jordan RM, Siddiqui HR, Siska PE. Potential energy curves for thea 3Σu+andc 3Σ+gstates of He2consistent with differential scattering,abinitiotheory, and low‐temperature exchange rates. J Chem Phys 1986. [DOI: 10.1063/1.450674] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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37
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Martin DW, Siska PE. Differential nonreactive scattering of He*(2 1S, 2 3S) by D2and H2: Anisotropic optical potentials and comparison withab initiotheory. J Chem Phys 1985. [DOI: 10.1063/1.448313] [Citation(s) in RCA: 35] [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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38
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Jordan RM, Siska PE. Potential energy curves for the A 1Σ+u and C 1Σ+g states of He2 obtained by combining scattering, spectroscopy, and ab initio theory. J Chem Phys 1984. [DOI: 10.1063/1.446525] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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39
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40
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Parr TP, Parr DM, Martin RM. Velocity dependence for the chemi‐ionization of Ar, Kr, N2, CO, and O2 by He(2 1S) and He(2 3S) metastable atoms. J Chem Phys 1982. [DOI: 10.1063/1.442780] [Citation(s) in RCA: 88] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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41
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Hefferlin R, Kutzner M. Systematics of ground‐state potential minima between two main‐group atoms or ions. J Chem Phys 1981. [DOI: 10.1063/1.442068] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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42
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Burdenski S, Feltgen R, Lichterfeld F, Pauly H. Total and ionization cross sections for He*(23S)-Ar and He*(21S)-Ar in the thermal energy range. Chem Phys Lett 1981. [DOI: 10.1016/0009-2614(81)80020-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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43
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Siska PE. One‐electron model potential calculations. II. 1Σ+ and 3Σ+ excited states of HeNe relevant to electronic energy transfer. J Chem Phys 1980. [DOI: 10.1063/1.440387] [Citation(s) in RCA: 27] [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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