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Effects of rovibrational excitation of LiH on the LiH depletion and H exchange channels for the reaction H ( 2S) + LiH (X 1Σ+) on a new potential energy surface. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2019.137043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zagidullin MV, Khvatov NA, Medvedkov IA, Tolstov GI, Mebel AM, Heaven MC, Azyazov VN. O 2(b 1Σ g+) Quenching by O 2, CO 2, H 2O, and N 2 at Temperatures of 300-800 K. J Phys Chem A 2017; 121:7343-7348. [PMID: 28892383 DOI: 10.1021/acs.jpca.7b07885] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Rate constants for the removal of O2(b1Σg+) by collisions with O2, N2, CO2, and H2O have been determined over the temperature range from 297 to 800 K. O2(b1Σg+) was excited by pulses from a tunable dye laser, and the deactivation kinetics were followed by observing the temporal behavior of the b1Σg+-X3Σg- fluorescence. The removal rate constants for CO2, N2, and H2O were not strongly dependent on temperature and could be represented by the expressions kCO2 = (1.18 ± 0.05) × 10-17 × T1.5 × exp[Formula: see text], kN2 = (8 ± 0.3) × 10-20 × T1.5 × exp[Formula: see text], and kH2O = (1.27 ± 0.08) × 10-16 × T1.5 × exp[Formula: see text] cm3 molecule-1 s-1. Rate constants for O2(b1Σg+) removal by O2(X), being orders of magnitude lower, demonstrated a sharp increase with temperature, represented by the fitted expression kO2 = (7.4 ± 0.8) × 10-17 × T0.5 × exp[Formula: see text] cm3 molecule-1 s-1. All of the rate constants measured at room temperature were found to be in good agreement with previously reported values.
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Affiliation(s)
- M V Zagidullin
- Samara National Research University , Samara 443086, Russia.,Lebedev Physical Institute , Samara 443011, Russia
| | - N A Khvatov
- Samara National Research University , Samara 443086, Russia.,Lebedev Physical Institute , Samara 443011, Russia
| | - I A Medvedkov
- Samara National Research University , Samara 443086, Russia
| | - G I Tolstov
- Samara National Research University , Samara 443086, Russia
| | - A M Mebel
- Samara National Research University , Samara 443086, Russia.,Florida International University , Miami, Florida 33199, United States
| | - M C Heaven
- Samara National Research University , Samara 443086, Russia.,Emory University , Atlanta, Georgia 30322, United States
| | - V N Azyazov
- Samara National Research University , Samara 443086, Russia.,Lebedev Physical Institute , Samara 443011, Russia
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Huang Z, Li R, Ge M, Zheng Y, Meng X, Yang H. Study of the dynamics and isotopic effects in the D + MgD reaction using the quasi-classical trajectory method. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.07.076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Lu R, Wang Y, Deng K. Quantum wave packet and quasiclassical trajectory studies of the reaction H(2S) + CH(X2 Π; v = 0, j = 1) → C(1D) + H2 (X1 Σg+): Coriolis coupling effects and stereodynamics. J Comput Chem 2013; 34:1735-42. [PMID: 23670833 DOI: 10.1002/jcc.23309] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Revised: 04/01/2013] [Accepted: 04/09/2013] [Indexed: 12/14/2022]
Abstract
The quantum mechanics (QM) and quasiclassical trajectory (QCT) calculations have been carried out for the title reaction with the ground minimal allowed rotational state of CH (j = 1) on the 1 (1)A' potential energy surface. For the reaction probability at total angular momentum J = 0, a similar trend of the QM and QCT calculations is observed, and the QM results are larger than the latter almost in the whole considered energy range (0.1-1.5 eV). The QCT integral cross sections are larger than the QM results with centrifugal sudden approximation, while smaller than those from QM method including Coriolis coupling for collision energies bigger than 0.25 eV. The quantum wave-packet computations show that the Coriolis coupling effects get more and more pronounced with increasing of J. In addition to the scalar properties, the stereodynamical properties, such as the average rotational alignment factor <P2 (j'•k)>, the angular distributions P(θr ), P(ϕr ), P(θr ,ϕr ), and the polarization-dependent generalized differential cross sections have been explored in detail by QCT approach.
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Affiliation(s)
- Ruifeng Lu
- Department of Applied Physics, Nanjing University of Science and Technology, Nanjing, 210094, People's Republic of China
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Quantum wave packet dynamics study of the S(3P)+H2 reaction on the lowest SH2(13A′′) state. COMPUT THEOR CHEM 2012. [DOI: 10.1016/j.comptc.2012.07.041] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Lv SJ, Zhang PY, He GZ. Time-dependent Wave Packet Quantum Scattering Study of Reaction S(3P)+H2→HS+H on a New ab initio Potential Energy Surface 3A′. CHINESE J CHEM PHYS 2012. [DOI: 10.1088/1674-0068/25/03/291-296] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Lv SJ, Zhang PY, Han KL, He GZ. Exact quantum scattering study of the H + HS reaction on a new ab initio potential energy surface H2S (3A″). J Chem Phys 2012; 136:094308. [DOI: 10.1063/1.3690051] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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Zhang AJ, He GZ. Quantum Mechanics Rate Constant for the N+ND Reaction. CHINESE J CHEM PHYS 2011. [DOI: 10.1088/1674-0068/24/05/547-550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Lu RF, Zhang PY, Han KL. Attosecond-resolution quantum dynamics calculations for atoms and molecules in strong laser fields. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2008; 77:066701. [PMID: 18643391 DOI: 10.1103/physreve.77.066701] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2007] [Revised: 02/28/2008] [Indexed: 05/26/2023]
Abstract
A parallel quantum electron and nuclei wave packet computer code, LZH-DICP, has been developed to study laser-atom-molecule interaction in the nonperturbative regime with attosecond resolution. The nonlinear phenomena occurring in that regime can be studied with the code in a rigorous way by numerically solving the time-dependent Schrödinger equation of electrons and nuclei. Time propagation of the wave functions is performed using a split-operator approach, and based on a sine discrete variable representation. Photoelectron spectra for hydrogen and kinetic-energy spectra for molecular hydrogen ion in linearly polarized laser fields are calculated using a flux operator scheme, which testifies to the validity and the high efficiency of LZH-DICP.
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Affiliation(s)
- Rui-Feng Lu
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
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Zhang PY, Lu RF, Zhang AJ, Chu TS, Han KL. Full six-dimensional nonadiabatic quantum dynamics calculation for the energy pooling reaction O2(aΔ1)+O2(aΔ1)→O2(bΣ1)+O2(XΣ3). J Chem Phys 2008; 128:091103. [DOI: 10.1063/1.2884352] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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