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Hou S, Wang Z, Xie C. Full-dimensional potential energy surface for the photodissociation of HNCO via its S 1 band. Phys Chem Chem Phys 2023; 25:29556-29565. [PMID: 37877344 DOI: 10.1039/d3cp03703g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
A full-dimensional potential energy surface (PES) for the first excited state S1(1A'') of HNCO has been built up by the neural network method based on more than 36 000 ab initio points, which were calculated at the multireference configuration interaction level with Davidson correction using the augmented correlation consistent polarized valence triple zeta basis set. It was found that two minima, namely, trans and cis isomers of HNCO, and another seven stationary points exist on the S1 PES for the two dissociation pathways: HNCO(S1) → H + NCO/NH + CO. Particularly, a new out-of-plane transition state between the two minima was found in this work, thanks to including all the degree of freedoms for this system. The adiabatic excitation energy of the S1(1A'') ← S0(1A') transition and dissociation energies D0(HNCO → H + NCO) and D0((HNCO →NH(a1Δ) + CO) calculated on the PES are in good agreement with experimental results. In addition, based on the newly constructed S1 PES, the percentage of products H + NCO in the photodissociation of HNCO(S1) was obtained by a quasi-classical trajectory method at the photon wavelengths ranging from 190 to 225 nm, which is in reasonably good agreement with earlier theoretical and experimental results. For the dissociation lifetimes of the trajectories, they were calculated to be less than 5 ps, which is also consistent with experimental observations.
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Affiliation(s)
- Siting Hou
- Institute of Modern Physics, Shaanxi Key Laboratory for Theoretical Physics Frontiers, Northwest University, Xi'an, Shaanxi 710127, China.
| | - Zhimo Wang
- Institute of Modern Physics, Shaanxi Key Laboratory for Theoretical Physics Frontiers, Northwest University, Xi'an, Shaanxi 710127, China.
| | - Changjian Xie
- Institute of Modern Physics, Shaanxi Key Laboratory for Theoretical Physics Frontiers, Northwest University, Xi'an, Shaanxi 710127, China.
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2
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Xie T, Su S, Yu S, Luo Z, Chen Z, Wang X, Yuan K, Yang X. VUV photodissociation of DNCO: dynamics of the D atom elimination channel. Mol Phys 2021. [DOI: 10.1080/00268976.2020.1821923] [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]
Affiliation(s)
- Ting Xie
- Hefei National Laboratory for Materials Science at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei, People’s Republic of China
| | - Shu Su
- State key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, People’s Republic of China
| | - Shengrui Yu
- Hangzhou Institute of Advanced Studies, Zhejiang Normal University, Hangzhou, People’s Republic of China
| | - Zijie Luo
- State key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, People’s Republic of China
| | - Zhichao Chen
- State key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, People’s Republic of China
| | - Xingan Wang
- Hefei National Laboratory for Materials Science at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei, People’s Republic of China
| | - Kaijun Yuan
- State key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, People’s Republic of China
| | - Xueming Yang
- State key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, People’s Republic of China
- Department of Chemistry, College of Science, Southern University of Science and Technology, Shenzhen, People’s Republic of China
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3
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Su S, Chen Z, Chen ZC, Wu GR, Dai DX, Yuan KJ, Yang XM. Ultraviolet photodissociation dynamics of DNCO + hν → D + NCO: Two competitive pathways. CHINESE J CHEM PHYS 2019. [DOI: 10.1063/1674-0068/cjcp1904074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Shu Su
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhen Chen
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi-chao Chen
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Dalian 116023, China
| | - Guo-rong Wu
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Dalian 116023, China
| | - Dong-xu Dai
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Dalian 116023, China
| | - Kai-jun Yuan
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Dalian 116023, China
| | - Xue-ming Yang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Dalian 116023, China
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Bonnet L, Linguerri R, Hochlaf M, Yazidi O, Halvick P, Francisco JS. Full-Dimensional Theory of Pair-Correlated HNCO Photofragmentation. J Phys Chem Lett 2017; 8:2420-2424. [PMID: 28498666 DOI: 10.1021/acs.jpclett.7b00920] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Full-dimensional semiclassical dynamical calculations combining classical paths and Bohr quantization of product internal motions are reported for the prototype photofragmentation of isocyanic acid in the S1 state. These calculations allow one to closely reproduce for the first time key features of state-of-the-art imaging measurements at photolysis wavelengths of 201 and 210 nm while providing insight into the underlying dissociation mechanism. Quantum scattering calculations being beyond reach for most polyatomic fissions, pair-correlated data on these processes are much more often measured than predicted. Our theoretical approach can be used to fill this gap.
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Affiliation(s)
- L Bonnet
- Institut des Sciences Moléculaires, Université de Bordeaux, CNRS, UMR 5255 , 33405 Talence, France
| | - R Linguerri
- Laboratoire Modélisation et Simulation Multi Echelle, Université Paris-Est, UMR 8208 CNRS , 5 Bd Descartes, 77454 Marne La Vallée, France
| | - M Hochlaf
- Laboratoire Modélisation et Simulation Multi Echelle, Université Paris-Est, UMR 8208 CNRS , 5 Bd Descartes, 77454 Marne La Vallée, France
| | - O Yazidi
- Laboratoire de Spectroscopie Atomique, Moléculaire et Applications, LR01ES09, Faculté des Sciences de Tunis, Université de Tunis El Manar , 2092 Tunis, Tunisia
| | - P Halvick
- Institut des Sciences Moléculaires, Université de Bordeaux, CNRS, UMR 5255 , 33405 Talence, France
| | - J S Francisco
- Department of Chemistry, University of Nebraska-Lincoln , 433 Hamilton Hall, Lincoln, Nebraska 68588-0304, United States
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Hanf A, Volpp HR, Sharma P, Mittal JP, Vatsa RK. Ultraviolet photochemistry of buta-1,3- and buta-1,2-dienes: Laser spectroscopic absolute hydrogen atom quantum yield and translational energy distribution measurements. J Chem Phys 2010; 133:024308. [DOI: 10.1063/1.3462951] [Citation(s) in RCA: 3] [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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6
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Zabardasti A, Kakanejadifard A. Theoretical study of hydrogen bonded clusters of water and cyanic acid: Hydrogen bonding in terms of the molecular structure. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.05.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zabardasti A, Solimannejad M. Theoretical study and AIM analysis of hydrogen bonded clusters of water and isocyanic acid. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.theochem.2007.05.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Läuter A, Naik PD, Mittal JP, Volpp HR, Wolfrum J. Laser-induced fluorescence study of the hydrogen atom formation dynamics in the 248 nm gas-phase photodissociation of vibrational state selected water (H2O (|04−〉)). RESEARCH ON CHEMICAL INTERMEDIATES 2007. [DOI: 10.1163/156856707782565796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Läuter A, Vatsa RK, Mittal JP, Volpp HR, Wolfrum J. Laser Spectroscopic Excitation Function and Reaction Threshold Studies of the H + DCl → HCl + D Gas-Phase Isotope Exchange Reaction. J Phys Chem A 2006; 110:3273-9. [PMID: 16509653 DOI: 10.1021/jp054818o] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The dynamics of the gas-phase hydrogen atom exchange reaction H + DCl --> HCl + D were studied using the pulsed laser photolysis/laser induced fluorescence "pump-and-probe" method. Laser photolysis of H2S at 222 nm was used to generate nonequilibrium distributions of translationally excited hydrogen atoms at high dilution in a flowing moderator gas (Ar)/reagent (DCl) mixture. H and D atoms were detected with sub-Doppler resolution via Lyman-alpha laser induced fluorescence spectroscopy, which allowed the measurement of the line shapes of the moderated H atom Doppler profiles as well as the concentration of the D atoms produced in the H + DCl --> HCl + D reaction. From the measured H atom Doppler profiles, the time evolution of the initially generated nascent nonequilibrium H atom speed distribution toward its room-temperature thermal equilibrium form was determined. In this way, the excitation function and the reaction threshold (E0 = 0.65 +/- 0.13 eV) for the H + DCl --> HCl + D reaction could be determined from the measured nonequilibrium D atom formation rates and single collision absolute reaction cross-section values of 0.12 +/- 0.04 A2 and 0.45 +/- 0.11 A2 measured at reagent collision energies of 1.0 and 1.4 eV, respectively.
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Affiliation(s)
- Almuth Läuter
- Physikalisch-Chemisches Institut der Universität Heidelberg, Im Neuenheimer Feld 253, D-69120 Heidelberg, Germany
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Portnov A, Bespechansky E, Ganot Y, Rosenwaks S, Bar I. Determining the vibrational pattern via overtone cold spectra: C-H methyl stretches of propyne. J Chem Phys 2005; 122:224316. [PMID: 15974677 DOI: 10.1063/1.1930832] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Vibrationally mediated photodissociation and photoacoustic (PA) spectroscopy were employed for studying the intramolecular dynamics of propyne initially excited to the first through fourth overtone of methyl C-H stretching modes. Room-temperature PA and jet-cooled action spectra, monitoring the absorption of the parent and the yield of the ensuing H photofragments, respectively, were obtained. The PA spectra exhibit mainly broad features, while the action spectra, due to inhomogeneous structure reduction, expose multiple peaks of recognizable shapes in the differing overtone manifolds. Symmetric rotor simulations of the band contours of the action spectra allowed retrieving of band origins and linewidths. The linewidths of the bands in each manifold enabled estimates for energy redistribution times out of the corresponding states to the bath states, the times ranging from 18+/-6 ps for two quanta of C-H excitation to subpicosecond for five quanta. The data were also analyzed in terms of a normal-mode model and a joint local-/normal-mode model. These models enabled determination of harmonic frequencies, anharmonicities, and interaction parameters reproducing the observed data in all monitored regions and provided spectral assignments. The measured Doppler profiles were well fitted by Gaussians with widths suggesting low average translational energies for the released H photofragments. These low energies and their similarities to those for dissociation of propyne isotopomers preexcited to acetylenic C-H stretches were ascribed to an indirect dissociation process occurring after internal conversion to the ground electronic state and isomerization to allene.
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Affiliation(s)
- Alex Portnov
- Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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Hanf A, Läuter A, Volpp HR. Absolute chlorine atom quantum yield measurements in the UV and VUV gas-phase laser photolysis of CCl4. Chem Phys Lett 2003. [DOI: 10.1016/s0009-2614(02)01896-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Abu-Bajeh M, Cameron M, Jung KH, Kappel C, Läuter A, Lee KS, Upadhyaya H, Vatsa RK, Volpp HR. Absolute quantum yield measurements for the formation of oxygen atoms after UV laser excitation of SO2 at 222-4 nm. J CHEM SCI 2002. [DOI: 10.1007/bf02708860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Läuter A, Lee K, Jung K, Vatsa R, Mittal J, Volpp HR. Absolute primary H atom quantum yield measurements in the 193.3 and 121.6 nm photodissociation of acetylene. Chem Phys Lett 2002. [DOI: 10.1016/s0009-2614(02)00625-5] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Berghout HL, Hsieh S, Crim FF. Relative product yields in the one-photon and vibrationally mediated photolysis of isocyanic acid (HNCO). J Chem Phys 2001. [DOI: 10.1063/1.1371283] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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15
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Valeev EF, Allen WD, Schaefer HF, Császár AG, East ALL. Interlocking Triplet Electronic States of Isocyanic Acid: Sources of Nonadiabatic Photofragmentation Dynamics. J Phys Chem A 2001. [DOI: 10.1021/jp0039114] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Edward F. Valeev
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602
| | - Wesley D. Allen
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602
| | - Henry F. Schaefer
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602
| | - Attila G. Császár
- Department of Theoretical Chemistry, Eötvös University, P.O. Box 32, H-1518 Budapest 112, Hungary
| | - Allan L. L. East
- Department of Chemistry, University of Regina, Regina, Saskatchewan, Canada SAS 0A2
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16
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Schinke R, Bittererová M. On the S1→S0 internal conversion in the photodissociation of HNCO: the role of the NC stretch as a promoting mode. Chem Phys Lett 2000. [DOI: 10.1016/s0009-2614(00)01286-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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18
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Klossika JJ, Schinke R. The photodissociation of HNCO in the S1 band: A five-dimensional classical trajectory study. J Chem Phys 1999. [DOI: 10.1063/1.479883] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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19
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Kaledin AL, Cui Q, Heaven MC, Morokuma K. Ab initio theoretical studies on photodissociation of HNCO upon S1(1A″)←S0(1A′) excitation: The role of internal conversion and intersystem crossing. J Chem Phys 1999. [DOI: 10.1063/1.479758] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [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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Brownsword RA, Schmiechen P, Volpp HR, Upadhyaya HP, Jung YJ, Jung KH. Chlorine atom formation dynamics in the dissociation of CH3CF2Cl(HCFC-142b) after UV laser photoexcitation. J Chem Phys 1999. [DOI: 10.1063/1.479124] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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21
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Zyrianov M, Sanov A, Droz-Georget T, Reisler H. Photoinitiated decomposition of HNCO near the H+NCO threshold: Centrifugal barriers and channel competition. J Chem Phys 1999. [DOI: 10.1063/1.478998] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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22
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Zyrianov M, Droz-Georget T, Reisler H. Fragment recoil anisotropies in the photoinitiated decomposition of HNCO. J Chem Phys 1999. [DOI: 10.1063/1.477874] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.7] [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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Szichman H, Baer M, Volpp HR, Wolfrum J. Comparison between Experimental and Three-Dimensional Quantum Mechanical Rate Constants for the NH(D) + NO Reactions. J Phys Chem A 1998. [DOI: 10.1021/jp9828641] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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24
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Berghout HL, Brown SS, Delgado R, Fleming Crim F. Nonadiabatic effects in the photodissociation of vibrationally excited HNCO: The branching between singlet (a 1Δ) and triplet (X 3Σ−) NH. J Chem Phys 1998. [DOI: 10.1063/1.476793] [Citation(s) in RCA: 41] [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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25
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Brownsword R, Kappel C, Schmiechen P, Upadhyaya H, Volpp HR. Dynamics of the H+HCl gas-phase reaction: absolute reactive cross-section for Cl(2P3/2) atom formation. Chem Phys Lett 1998. [DOI: 10.1016/s0009-2614(98)00404-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Stevens JE, Cui Q, Morokuma K. An ab initio study of the dissociation of HNCO in the S1 electronic state. J Chem Phys 1998. [DOI: 10.1063/1.475517] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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27
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Droz-Georget T, Zyrianov M, Reisler H, Chandler DW. Correlated distributions in the photodissociation of HNCO to NH(X3Σ−, a1Δ) + CO(X1Σ+) near the barrier on S1. Chem Phys Lett 1997. [DOI: 10.1016/s0009-2614(97)00804-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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Brownsword RA, Hillenkamp M, Laurent T, Volpp HR, Wolfrum J, Vatsa RK, Yoo HS. H atom formation dynamics in the dissociation of CH3–CF2Cl (HCFC-142b) after UV and VUV laser photoexcitation. J Chem Phys 1997. [DOI: 10.1063/1.474376] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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29
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Brownsword RA, Laurent T, Hillenkamp M, Vatsa RK, Volpp HR. Dissociation dynamics of HNCO and DNCO after laser photoexcitation in the vacuum ultraviolet. J Chem Phys 1997. [DOI: 10.1063/1.473857] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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