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Li W, Dong B, Niu X, Wang M, Zhang Y. Non-adiabatic dynamics studies of the C+(2P1/2, 3/2) + H2 reaction: Based on global diabatic potential energy surfaces of CH2. J Chem Phys 2024; 161:074302. [PMID: 39145555 DOI: 10.1063/5.0223199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Accepted: 07/31/2024] [Indexed: 08/16/2024] Open
Abstract
Global diabatic potential energy surfaces (PESs) of CH2+ are constructed using the neural network method with a specific function based on 18 213 ab initio points. The multi-reference configuration interaction method with the aug-cc-pVQZ basis set is adopted to perform the ab initio calculations. The topographical properties of the diabatic PESs are examined in detail. In general, the diabatic PESs provide an accurate quasi-diabatic representation. To validate the diabatic PESs, the dynamics studies of the C+(2P1/2, 3/2) + H2 (v0 = 0, j0 = 0) → H + CH+(X1Σ+) reaction are performed using the time-dependent wave packet method. The reaction probabilities, integral cross sections, differential cross sections, and rate constants are calculated and compared with the experimental and theoretical results. Non-adiabatic dynamics results are in good agreement with experimental data. In addition, the non-adiabatic effect in the C+(2P1/2, 3/2) + H2 reaction is significant due to the non-adiabatic results being obviously larger than adiabatic values. The reasonable non-adiabatic dynamics results indicate that present diabatic PESs can be recommended for any type of dynamics study.
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Affiliation(s)
- Wentao Li
- Weifang University of Science and Technology, Shouguang 262700, China
| | - Bin Dong
- Weifang University of Science and Technology, Shouguang 262700, China
| | - Xianghong Niu
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
| | - Meishan Wang
- College of Integrated Ciruits, Ludong University, Yantai 264025, People's Republic of China
| | - Yong Zhang
- Department of Physics, Tonghua Normal University, Tonghua, Jilin 134002, China
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State-to-state dynamical studies of the C+ + H2(v = 0, j = 0) → CH+ + H reaction using time-dependent wave packet method. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2022.111670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Buchachenko AA, Visentin G, Viehland LA. Gaseous transport properties of the ground and excited Cr, Co and Ni cations in He: Ab initio study of electronic state chromatography. J Chem Phys 2022; 157:104303. [DOI: 10.1063/5.0107110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The electronic state chromatography (ESC) effect allows the differentiation of ions in their ground and metastable states by their gaseous mobilities in the limit of low electrostatic fields. It is investigated here by means of accurate transport calculations with ab initio ion-atom potentials for the Cr, Co and Ni cations in He buffer gas near room temperature. The values for the open-shell ions in degenerate states are shown to be well approximated by using the single isotropic interaction potential. Minimalistic implementation of the multireference configuration interaction (MRCI) method is enough to describe the zero-field transport properties of metastable ions in the 3dm-14s configuration, such as Cr+(a6D), Co+(a5F) and Ni+(4F), due to their weak and almost isotropic interaction with He atom and the low sensitivity of the measured mobilities to the potential well region. By contrast, interactions involving the ions in the ground 3dm states, such as Cr+(a6S), Co+(a3F) and Ni+(2D), are strong and anisotropic; the MRCI potentials poorly describe their transport coefficients. Even the coupled cluster with singles, doubles and non-iterative triples [CCSD(T)] approach taking into account vectorial spin-orbit coupling may not be accurate enough, as shown here for Ni+(2D). The sensitivity of ion mobility and the ESC effect to interaction potentials, similarities in ion-He interactions of the studied ions in distinct configurations, accuracy and possible improvements of the ab initio schemes, and control of the ESC effect by macroscopic parameters are discussed. Extensive sets of improved interaction potentials and transport data are generated.
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Affiliation(s)
| | | | - Larry A. Viehland
- Department of Chemistry, Chatham University, United States of America
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Davies AR, Cranney A, Viehland LA, Wright TG. Interactions of Si +( 2PJ) and Ge + ( 2PJ) with rare gas atoms (He-Rn): interaction potentials, spectroscopy, and ion transport coefficients. Phys Chem Chem Phys 2022; 24:7144-7163. [PMID: 35274637 DOI: 10.1039/d1cp05710c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Accurate interatomic potentials were calculated for the interaction of a singly-charged silicon cation, Si+, with a single rare gas atom, RG (RG = Kr-Rn), as well as a singly-charged germanium cation, Ge+, with a single rare gas atom, RG (RG = He-Rn). The RCCSD(T) method and basis sets of quadruple-ζ and quintuple-ζ quality were employed; each interaction energy is counterpoise corrected and extrapolated to the basis set limit. The lowest electronic term (2P) of each cation was considered, and the interatomic potentials calculated for the diatomic terms that arise from these: 2Π and 2Σ+. Additionally, the interatomic potentials for the respective spin-orbit levels were calculated, and the effect on the spectroscopic parameters was examined. Variations in several spectroscopic parameters with the increasing atomic number of RG were examined. The presence of incipient chemical interaction was also examined via Birge-Sponer-like plots and various population analyses across the series. In the cases of heavier RG, these were consistent with a small amount of electron transfer from the heavier RG atom to the cation, rationalizing the spin-orbit splittings. This was also supported by the observed larger-than-expected spin-orbit splittings for the Si+-RG complexes. Finally, each set of RCCSD(T) potentials including spin-orbit coupling was employed to calculate transport coefficients for the cation moving through a bath of the RG. The calculated ion mobilities showed significant differences for the two atomic spin-orbit states, arising from subtle changes in the interaction potentials.
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Affiliation(s)
- Alexander R Davies
- School of Chemistry, University Park, University of Nottingham, Nottingham NG7 2RD, UK.
| | - Aiden Cranney
- School of Chemistry, University Park, University of Nottingham, Nottingham NG7 2RD, UK.
| | - Larry A Viehland
- Science Department, Chatham University, Pittsburgh, Pennsylvania 15232, USA.
| | - Timothy G Wright
- School of Chemistry, University Park, University of Nottingham, Nottingham NG7 2RD, UK.
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Wu H, Duan Z, Chen G. State-resolved quantum mechanical study of the intramolecular isotope effect in the C+ + HD reaction. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137783] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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Aïssaoui L, Bouledroua M, Alioua K. Mobility of carbon ions and C+(4P)in helium computed from quantum-mechanical transport cross sections. Mol Phys 2015. [DOI: 10.1080/00268976.2015.1059960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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7
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Tuttle WD, Thorington RL, Viehland LA, Wright TG. Interaction potentials, spectroscopy and transport properties of C+(2PJ) and C+(4PJ) with helium. Mol Phys 2015. [DOI: 10.1080/00268976.2015.1061153] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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8
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Ibrahim YM, Alsharaeh EH, El-Shall MS. Evidence for Penning Ionization in the Generation of Electronically Excited States of Transition Metal Cations by Laser Vaporization. J Phys Chem B 2004. [DOI: 10.1021/jp049627k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yehia M. Ibrahim
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284-2006
| | - Edreese H. Alsharaeh
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284-2006
| | - M. Samy El-Shall
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284-2006
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Affiliation(s)
- K M Ervin
- Department of Chemistry and Chemical Physics Program, University of Nevada, Reno, Nevada 89557, USA.
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11
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Ion-molecule kinetics at high temperatures (300–1800 K). ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s1071-9687(01)80006-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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12
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Hierl PM, Morris RA, Viggiano AA. Rate coefficients for the endothermic reactions C+(2P)+H2(D2)→CH+(CD+)+H(D) as functions of temperature from 400–1300 K. J Chem Phys 1997. [DOI: 10.1063/1.474093] [Citation(s) in RCA: 43] [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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Swarm Techniques. ACTA ACUST UNITED AC 1995. [DOI: 10.1016/s0076-695x(08)60660-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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14
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Effects of reactant ion kinetic energy on both endothermic and exothermic ion/molecule reactions in a quadrupole ion trap mass spectrometer. ACTA ACUST UNITED AC 1993. [DOI: 10.1016/0168-1176(93)80089-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Glosík J, Twiddy N, Javahery G, Ferguson E. Measurement of the equilibrium constant of the reaction HeH+ + Ne ⇌ NeH+ + He in a selected ion flow tube. ACTA ACUST UNITED AC 1991. [DOI: 10.1016/0168-1176(91)85097-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Tichy M, Javahery G, Twiddy N, Ferguson E. Selected ion flow drift tube studies of the reaction of HBr+ with various neutral molecules. ACTA ACUST UNITED AC 1990. [DOI: 10.1016/0168-1176(90)85060-f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Tichy M, Javahery G, Twiddy N, Ferguson E. The application of a selected-ion flow drift tube to the determination of proton affinity differences. ACTA ACUST UNITED AC 1989. [DOI: 10.1016/0168-1176(89)80094-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Grice ST, Harland PW, Maclagan RG, Simpson RW. Ab initio calculation of the mobility of C+(2P) and C+ (4P) in helium. ACTA ACUST UNITED AC 1989. [DOI: 10.1016/0168-1176(89)80021-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Rincon M, Kirchner NJ, Bowers MT. Translational energy spectroscopy of beams of C+(2Pu) and C+(4Pg) ions. ACTA ACUST UNITED AC 1988. [DOI: 10.1016/0168-1176(88)80079-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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