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Adhikari S, Baer M, Sathyamurthy N. HeH 2+: structure and dynamics. INT REV PHYS CHEM 2022. [DOI: 10.1080/0144235x.2022.2037883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Satrajit Adhikari
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Michael Baer
- The Fritz Haber Center for Molecular Dynamics, The Hebrew University of Jerusalem, Jerusalem, Israel
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Hillenbrand PM, Bowen KP, Dayou F, Miller KA, de Ruette N, Urbain X, Savin DW. Experimental study of the proton-transfer reaction C + H 2+ → CH + + H and its isotopic variant (D 2+). Phys Chem Chem Phys 2020; 22:27364-27384. [PMID: 33231243 DOI: 10.1039/d0cp04810k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report absolute integral cross section (ICS) measurements using a dual-source merged-fast-beams apparatus to study the titular reactions over the relative translational energy range of Er ∼ 0.01-10 eV. We used photodetachment of C- to produce a pure beam of atomic C in the ground electronic 3P term, with statistically populated fine-structure levels. The H2+ and D2+ were formed in an electron impact ionization source, with well known vibrational and rotational distributions. The experimental work is complemented by a theoretical study of the CH2+ electronic system in the reactant and product channels, which helps to clarify the possible reaction mechanisms underlying the ICS measurements. Our measurements provide evidence that the reactions are barrierless and exoergic. They also indicate the apparent absence of an intermolecular isotope effect, to within the total experimental uncertainties. Capture models, taking into account either the charge-induced dipole interaction potential or the combined charge-quadrupole and charge-induced dipole interaction potentials, produce reaction cross sections that lie a factor of ∼4 above the experimental results. Based on our theoretical study, we hypothesize that the reaction is most likely to proceed adiabatically through the 14A' and 14A'' states of CH2+via the reaction C(3P) + H2+(2Σ+g) → CH+(3Π) + H(2S). We also hypothesize that at low collision energies only H2+(v ≤ 2) and D2+(v ≤ 3) contribute to the titular reactions, due to the onset of dissociative charge transfer for higher vibrational v levels. Incorporating these assumptions into the capture models brings them into better agreement with the experimental results. Still, for energies ⪅0.1 eV where capture models are most relevant, the modified charge-induced dipole model yields reaction cross sections with an incorrect energy dependence and lying ∼10% below the experimental results. The capture cross section obtained from the combined charge-quadrupole and charge-induced dipole model better matches the measured energy dependence but lies ∼30-50% above the experimental results. These findings provide important guidance for future quasiclassical trajectory and quantum mechanical treatments of this reaction.
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Manolopoulos DE. Editorial: Remembering John C. Light. II. Scientific contributions. J Chem Phys 2016; 144:150402. [PMID: 27389198 DOI: 10.1063/1.4947000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- David E Manolopoulos
- Physical and Theoretical Chemistry Laboratory, Department of Chemistry, Oxford University, South Parks Road, Oxford OX1 3QZ, United Kingdom
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Samanta AK, Ch’ng LC, Reisler H. Imaging bond breaking and vibrational energy transfer in small water containing clusters. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2013.05.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Dressler RA, Gardner JA, Cooke DL, Murad E. Analysis of ion densities in the vicinity of space vehicles: Ion-neutral chemical kinetics. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/91ja01410] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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6
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On the Differential Cross Sections in Complex-Forming Atom–Diatom Reactive Collisions. ACTA ACUST UNITED AC 2009. [DOI: 10.1007/978-90-481-2985-0_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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7
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Aoiz FJ, González-Lezana T, Sáez Rábanos V. A comparison of quantum and quasiclassical statistical models for reactions of electronically excited atoms with molecular hydrogen. J Chem Phys 2008; 129:094305. [DOI: 10.1063/1.2969812] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Aoiz FJ, González-Lezana T, Sáez Rábanos V. Stringent test of the statistical quasiclassical trajectory model for the H3+ exchange reaction: A comparison with rigorous statistical quantum mechanical results. J Chem Phys 2007; 127:174109. [DOI: 10.1063/1.2774982] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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9
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Tang X, Houchins C, Lau KC, Ng CY, Dressler RA, Chiu YH, Chu TS, Han KL. A time-dependent wave packet quantum scattering study of the reaction HD+(v=0–3;j0=1)+He→HeH+(HeD+)+D(H). J Chem Phys 2007; 127:164318. [DOI: 10.1063/1.2800009] [Citation(s) in RCA: 17] [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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Fernandez-Ramos A, Miller JA, Klippenstein SJ, Truhlar DG. Modeling the kinetics of bimolecular reactions. Chem Rev 2007; 106:4518-84. [PMID: 17091928 DOI: 10.1021/cr050205w] [Citation(s) in RCA: 474] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Antonio Fernandez-Ramos
- Departamento de Quimica Fisica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
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Calvo F, Parneix P. Accurate modeling of sequential decay in clusters over long time scales: Insights from phase space theory. J Chem Phys 2007; 126:034309. [PMID: 17249873 DOI: 10.1063/1.2426341] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A general theoretical framework for describing the thermally induced sequential decay in atomic clusters is presented. The scheme relies on a full treatment of individual dissociation steps based on phase space theory (PST), built into a kinetic Monte Carlo (kMC) procedure. This combined PST/kMC approach allows one to follow the evolution of several statistical properties such as the size, the angular momentum, or the temperature of the cluster over arbitrarily long time scales. Quantitative accuracy is achieved by incorporating anharmonicities of the vibrational densities of states, the rigorous conservation of angular momentum via the effective dissociation potential, and a proper calibration of the rate constants. The approach is tested and validated on selected Lennard-Jones clusters in various situations. Several approximations, including a mean-field rate equation treatment, are critically discussed; possible extensions are presented.
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Affiliation(s)
- F Calvo
- Laboratoire de Chimie et Physique Quantiques, IRSAMC, Université Paul Sabatier, 118 Route de Narbonne, F31062 Toulouse Cedex, France
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Tiwari AK, Sathyamurthy N. Preferential scattering of one isotopomer over another in (He, HD+) collisions. Chem Phys Lett 2005. [DOI: 10.1016/j.cplett.2005.08.130] [Citation(s) in RCA: 6] [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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16
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Tiwari AK, Panda AN, Sathyamurthy N. Isotopic Branching in (He, HD+) Collisions. J Phys Chem A 2005; 110:389-95. [PMID: 16405309 DOI: 10.1021/jp051796x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A three-dimensional time-dependent quantum mechanical approach is used to calculate the reaction probability (P(R)) and the integral reaction cross section (sigma(R)) for both channels of the reaction He + HD+(v = 0, 1, 2, 3; j = 0) --> HeH(D)+ + D(H), over a range of translational energy (E(trans)) on two different ab initio potential energy surfaces (McLaughlin-Thompson-Joseph-Sathyamurthy and Palmieri et al.). The reaction probability plots as a function of translational energy exhibit several oscillations, which are characteristic of the system. The vibrational enhancement of the reaction probability and the integral reaction cross section values are reproduced qualitatively by our calculations, in accordance with the experimental results. The isotopic branching ratio for the reaction decreases in going from v = 0 to v = 1 and then becomes nearly v-independent in going from v = 1 to v =3 on both the surfaces.
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Affiliation(s)
- Ashwani Kumar Tiwari
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
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Braunstein M, Adler-Golden S, Maiti B, Schatz GC. Quantum and classical studies of the O(3P)+H2(v=0–3,j=0)→OH+H reaction using benchmark potential surfaces. J Chem Phys 2004; 120:4316-23. [PMID: 15268601 DOI: 10.1063/1.1642580] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present results of time-dependent quantum mechanics (TDQM) and quasiclassical trajectory (QCT) studies of the excitation function for O(3P) + H2(v = 0-3,j = 0) --> OH + H from threshold to 30 kcal/mol collision energy using benchmark potential energy surfaces [Rogers et al., J. Phys. Chem. A 104, 2308 (2000)]. For H2(v = 0) there is excellent agreement between quantum and classical results. The TDQM results show that the reactive threshold drops from 10 kcal/mol for v = 0 to 6 for v = 1, 5 for v = 2 and 4 for v = 3, suggesting a much slower increase in rate constant with vibrational excitation above v = 1 than below. For H2(v > 0), the classical results are larger than the quantum results by a factor approximately 2 near threshold, but the agreement monotonically improves until they are within approximately 10% near 30 kcal/mol collision energy. We believe these differences arise from stronger vibrational adiabaticity in the quantum dynamics, an effect examined before for this system at lower energies. We have also computed QCT OH(v',j') state-resolved cross sections and angular distributions. The QCT state-resolved OH(v') cross sections peak at the same vibrational quantum number as the H2 reagent. The OH rotational distributions are also quite hot and tend to cluster around high rotational quantum numbers. However, the dynamics seem to dictate a cutoff in the energy going into OH rotation indicating an angular momentum constraint. The state-resolved OH distributions were fit to probability functions based on conventional information theory extended to include an energy gap law for product vibrations.
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Affiliation(s)
- M Braunstein
- Spectral Sciences, Incorporated, Burlington, Massachusetts 01803, USA.
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Song JB. Theoretical Study of the Isotope Effect for the Reaction Cl+HD at the High Energy Using Pairwise Energy Model. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2003. [DOI: 10.5012/jkcs.2003.47.3.191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Song JB. Theoretical study of collision-induced dissociation cross-sections for the reactions , Cl, and F). Chem Phys 2002. [DOI: 10.1016/s0301-0104(02)00834-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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20
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Srivastava A, Picconatto CA, Valentini JJ. State-to-state dynamics of the H+c-C6H12→H2(v′,j′)+c-C6H11 reaction. J Chem Phys 2001. [DOI: 10.1063/1.1386651] [Citation(s) in RCA: 5] [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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21
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Larregaray P, Bonnet L, Rayez JC. On product state distributions in triatomic unimolecular reactions: Beyond phase space theory and the adiabatic assumption. J Chem Phys 2001. [DOI: 10.1063/1.1342220] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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22
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Peslherbe GH, Hase WL. Product Energy and Angular Momentum Partitioning in the Unimolecular Dissociation Of Aluminum Clusters. J Phys Chem A 2000. [DOI: 10.1021/jp0012146] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gilles H. Peslherbe
- Department of Chemistry and Biochemistry, 1455 De Maisonneuve Blvd. West, Concordia University, Montréal, Québec H3G 1M8, Canada
| | - William L. Hase
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202-3489
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23
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Kalyanaraman C, Clary DC, Sathyamurthy N. Isotopic branching in (He, HD+) collisions: A time-dependent quantum mechanical study in three dimensions. J Chem Phys 1999. [DOI: 10.1063/1.480454] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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24
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Bonnet L, Rayez JC. A model of exit-channel corrected state distributions in the products of three-atom barrierless unimolecular reactions. J Chem Phys 1999. [DOI: 10.1063/1.478363] [Citation(s) in RCA: 4] [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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25
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Bonnet L, Rayez J. Statistical analysis of the recoil energy distributions in the products of the unimolecular dissociations of NO2 and C2O. Chem Phys Lett 1998. [DOI: 10.1016/s0009-2614(98)01027-6] [Citation(s) in RCA: 6] [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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26
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Kay RD, Raff LM. Statistical and Nonstatistical Dynamics in the Unimolecular Decomposition of Vinyl Bromide. J Phys Chem A 1997. [DOI: 10.1021/jp962624q] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ronald D. Kay
- Department of Chemistry, Gordon College, 255 Grapevine Road, Wenham, Massachusetts 01984
| | - Lionel M. Raff
- Department of Chemistry, Oklahoma State University, Stillwater, Oklahoma 74078
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27
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Pan R, Raff LM. Intramolecular energy transfer rates for vinyl bromide and deuterium-substituted vinyl bromides from power spectrum line splittings. J Chem Phys 1997. [DOI: 10.1063/1.473282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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28
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Song JB, Gislason EA. Application of the pairwise energy model to various isotopic variations of the H + H2 reaction. Chem Phys 1997. [DOI: 10.1016/s0301-0104(96)00297-2] [Citation(s) in RCA: 8] [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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Peslherbe GH, Hase WL. Comparison of zero‐point energy constrained and quantum anharmonic Rice–Ramsperger–Kassel–Marcus and phase space theory rate constants for Al3dissociation. J Chem Phys 1996. [DOI: 10.1063/1.471704] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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31
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Bonnet L, Rayez J. On the classical approach of microcanonical statistical theory of three-atom reactions governed by long-range forces. Chem Phys 1995. [DOI: 10.1016/0301-0104(95)00246-1] [Citation(s) in RCA: 10] [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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32
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Bonnet L, Rayez JC. Main factors influencing the recoil energy distribution in the products of three‐atom reactions governed by long‐range forces and proceeding through long‐lived complexes. J Chem Phys 1995. [DOI: 10.1063/1.468821] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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33
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Arnold ST, Dressler RA, Bastian MJ, Gardner JA, Murad E. Dynamics of hyperthermal Kr++H2O charge‐transfer collisions. J Chem Phys 1995. [DOI: 10.1063/1.469345] [Citation(s) in RCA: 15] [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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34
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Graul ST, Williams S, Dressler RA, Salter RH, Murad E. Guided‐ion beam measurements of X++NO (X=Ar, N2) reactions. J Chem Phys 1994. [DOI: 10.1063/1.466879] [Citation(s) in RCA: 8] [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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35
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Bohac EJ, Miller RE. The trans‐bending and F–F stretching vibrations of HF dimer in νHF=1: The influence of intermolecular vibrational excitation on the predissociation dynamics. J Chem Phys 1993. [DOI: 10.1063/1.465322] [Citation(s) in RCA: 37] [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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36
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Dressler RA, Salter RH, Murad E. Guided‐ion beam measurements of the X++H2O(D2O) (X=Ar,N2) collision systems. J Chem Phys 1993. [DOI: 10.1063/1.465413] [Citation(s) in RCA: 55] [Impact Index Per Article: 1.8] [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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Buntin SA, Cavanagh RR, Richter LJ. Photodecomposition dynamics of Mo(CO)6/Si(111) 7×7: CO internal state and translational energy distributions. J Chem Phys 1993. [DOI: 10.1063/1.464705] [Citation(s) in RCA: 8] [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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38
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Bohac EJ, Miller RE. State‐to‐state vibrational predissociation of H2–HF and D2–HF. Direct comparisons between theory and experiment. J Chem Phys 1993. [DOI: 10.1063/1.464142] [Citation(s) in RCA: 29] [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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39
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Boering KA, Brauman JI. Collisional relaxation of vibrational excitation: Effects of bath gas structure. J Chem Phys 1992. [DOI: 10.1063/1.463803] [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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40
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Bohac EJ, Marshall MD, Miller RE. Initial state effects in the vibrational predissociation of hydrogen fluoride dimer. J Chem Phys 1992. [DOI: 10.1063/1.462578] [Citation(s) in RCA: 126] [Impact Index Per Article: 3.9] [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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Dressler RA, Gardner JA, Salter RH, Murad E. Luminescence measurements of Ar++H2O and N+2+H2O suprathermal charge transfer collisions: Product state distributions from H2O+Ã 2A1–X̃ 2B1 analysis. J Chem Phys 1992. [DOI: 10.1063/1.462193] [Citation(s) in RCA: 23] [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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Orlando R, Wu Z, Fenselau C, Cotter RJ. Endothermic ion/molecule reactions Part VI. Reaction-induced dissociation of peptides containing basic residues using dimethyl- and trimethylamine. ACTA ACUST UNITED AC 1991. [DOI: 10.1016/0168-1176(91)85046-o] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Gardner JA, Dressler RA, Salter RH, Murad E. A laboratory study of charge transfer and hydrogen atom pickup reactions in N+H2O(D2O) collisions at suprathermal energies. Chem Phys Lett 1991. [DOI: 10.1016/0009-2614(91)90212-r] [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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Orlando R, Fenselau C, Cotter RJ. Endothermic ion molecule reactions. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 1991; 2:189-197. [PMID: 24242272 DOI: 10.1016/1044-0305(91)80043-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/1990] [Accepted: 12/10/1990] [Indexed: 06/02/2023]
Abstract
Endothermic ion-molecule reactions in a tandem mass spectrometer have been used for a number of years for determining thermodynamic quantities, such as heats of formation and proton affinities, for gaseous ions. Recently, the reactive, endothermic collision has been exploited as an analytical technique for the structural analysis of peptides and other biomolecules. The technique is based upon the endothermic transfer of protons associated with amide bonds to ammonia. This reaction proceeds via a long-lived collision complex. When additional beam energy is supplied, other dissociation channels are opened up, leading to the production of sequence ions for the mass-selected, protonated analyte that are normally observed in high energy collision-induced dissociation spectra. The advantage, however, is that such spectra can be produced at very low beam energies. In this article, the rationale for developing this scheme, and its roots in previous ion-molecule studies, are explored.
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Affiliation(s)
- R Orlando
- Structural Biochemistry Center, Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, Baltimore, Maryland, USA
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45
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Gardner JA, Dressler RA, Salter RH, Murad E. Reaction cross section and product ion time‐of‐flight measurements for collisions of N+ and N+2 with CO2 at suprathermal energies. J Chem Phys 1990. [DOI: 10.1063/1.459358] [Citation(s) in RCA: 11] [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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46
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Song K, Chesnavich WJ. Multiple transition states in chemical reactions. II. The effect of angular momentum in variational studies of HO2and HeH+2systems. J Chem Phys 1990. [DOI: 10.1063/1.459569] [Citation(s) in RCA: 20] [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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47
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Dressler RA, Gardner JA, Salter RH, Wodarczyk FJ, Murad E. Cross section and product time‐of‐flight measurements of the reaction of N+2 with H2O and D2O at suprathermal energies. J Chem Phys 1990. [DOI: 10.1063/1.458173] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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48
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Holland JP, Rosenfeld RN. Energy disposal in the photofragmentation of W(CO)6: Experimental observations and physical models. J Chem Phys 1988. [DOI: 10.1063/1.455300] [Citation(s) in RCA: 28] [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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49
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Holland JP, Rosenfeld RN. A time-resolved tunable diode laser study of the photodissociation dynamics of W(CO)6. Chem Phys Lett 1988. [DOI: 10.1016/0009-2614(88)87406-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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50
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Ervin KM, Armentrout PB. C+(2P)+H2(D2,HD)→CH+(CD+)+H(D). II. Statistical phase space theory. J Chem Phys 1986. [DOI: 10.1063/1.450678] [Citation(s) in RCA: 43] [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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