1
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Roy TK, Liu T, Qian Y, Sojdak CA, Kozlowski MC, Lester MI. A five-carbon unsaturated Criegee intermediate: synthesis, spectroscopic identification, and theoretical study of 3-penten-2-one oxide. Chem Sci 2023; 14:10471-10477. [PMID: 37800006 PMCID: PMC10548502 DOI: 10.1039/d3sc03993e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/03/2023] [Indexed: 10/07/2023] Open
Abstract
Biogenic alkenes, such as isoprene and α-pinene, are the predominant source of volatile organic compounds (VOCs) emitted into the atmosphere. Atmospheric processing of alkenes via reaction with ozone leads to formation of zwitterionic reactive intermediates with a carbonyl oxide functional group, known as Criegee intermediates (CIs). CIs are known to exhibit a strong absorption (π* ← π) in the near ultraviolet and visible (UV-vis) region due to the carbonyl oxide moiety. This study focuses on the laboratory identification of a five-carbon CI with an unsaturated substituent, 3-penten-2-one oxide, which can be produced upon atmospheric ozonolysis of substituted isoprenes. 3-Penten-2-one oxide is generated in the laboratory by photolysis of a newly synthesized precursor, (Z)-2,4-diiodopent-2-ene, in the presence of oxygen. The electronic spectrum of 3-penten-2-one oxide was recorded by UV-vis induced depletion of the VUV photoionization signal on the parent m/z 100 mass channel using a time-of-flight mass spectrometer. The resultant electronic spectrum is broad and unstructured with peak absorption at ca. 375 nm. To complement the experimental findings, electronic structure calculations are performed at the CASPT2(12,10)/aug-cc-pVDZ level of theory. The experimental spectrum shows good agreement with the calculated electronic spectrum and vertical excitation energy obtained for the lowest energy conformer of 3-penten-2-one oxide. In addition, OH radical products resulting from unimolecular decay of energized 3-penten-2-oxide CIs are detected by UV laser-induced fluorescence. Finally, the experimental electronic spectrum is compared with that of a four-carbon, isoprene-derived CI, methyl vinyl ketone oxide, to understand the effects of an additional methyl group on the associated electronic properties.
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Affiliation(s)
- Tarun Kumar Roy
- Department of Chemistry, University of Pennsylvania Philadelphia PA 19104-6323 USA
| | - Tianlin Liu
- Department of Chemistry, University of Pennsylvania Philadelphia PA 19104-6323 USA
| | - Yujie Qian
- Department of Chemistry, University of Pennsylvania Philadelphia PA 19104-6323 USA
| | - Christopher A Sojdak
- Department of Chemistry, University of Pennsylvania Philadelphia PA 19104-6323 USA
| | - Marisa C Kozlowski
- Department of Chemistry, University of Pennsylvania Philadelphia PA 19104-6323 USA
| | - Marsha I Lester
- Department of Chemistry, University of Pennsylvania Philadelphia PA 19104-6323 USA
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2
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Fischer I, Hemberger P. Photoelectron Photoion Coincidence Spectroscopy of Biradicals. Chemphyschem 2023; 24:e202300334. [PMID: 37325876 DOI: 10.1002/cphc.202300334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/15/2023] [Accepted: 06/15/2023] [Indexed: 06/17/2023]
Abstract
The electronic structure of biradicals is characterized by the presence of two unpaired electrons in degenerate or near-degenerate molecular orbitals. In particular, some of the most relevant species are highly reactive, difficult to generate cleanly and can only be studied in the gas phase or in matrices. Unveiling their electronic structure is, however, of paramount interest to understand their chemistry. Photoelectron photoion coincidence (PEPICO) spectroscopy is an excellent approach to explore the electronic states of biradicals, because it enables a direct correlation between the detected ions and electrons. This permits to extract unique vibrationally resolved photoion mass-selected threshold photoelectron spectra (ms-TPES) to obtain insight in the electronic structure of both the neutral and the cation. In this review we highlight most recent advances on the spectroscopy of biradicals and biradicaloids, utilizing PEPICO spectroscopy and vacuum ultraviolet (VUV) synchrotron radiation.
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Affiliation(s)
- Ingo Fischer
- Julius-Maximilians-Universität Würzburg, Institut für Physikalische und Theoretische Chemie, Am Hubland, D-97074, Würzburg, Germany
| | - Patrick Hemberger
- Laboratory for Synchrotron Radiation and Femtochemistry, Paul Scherrer Institut (PSI), CH-5232, Villigen, Switzerland
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3
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Sit MK, Das S, Samanta K. Semiclassical Dynamics on Machine-Learned Coupled Multireference Potential Energy Surfaces: Application to the Photodissociation of the Simplest Criegee Intermediate. J Phys Chem A 2023; 127:2376-2387. [PMID: 36856588 DOI: 10.1021/acs.jpca.2c07229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
Determination of high-dimensional potential energy surfaces (PESs) and nonadiabatic couplings have always been quite challenging. To this end, machine learning (ML) models, trained with a finite set of ab initio data, allow accurate prediction of such properties. To express the PESs in terms of atomic contributions is the cornerstone of any ML based technique because it can be easily scaled to large systems. In this work, we have constructed high fidelity PESs and nonadiabatic coupling terms at the CASSCF level of ab initio data using a machine learning technique, namely, kernel-ridge regression. Additional MRCI-level calculations were carried out to assess the quality of the PESs. We use these machine-learned PESs and nonadiabatic couplings to simulate excited-state molecular dynamics based on Tully's fewest-switches surface hopping method (FSSH). FSSH is a semiclassical method in which nuclei move on the PESs due to the electrons according to the laws of classical mechanics. Nonadiabatic effects are taken into account in terms of transitions between PESs. We apply this scheme to study the O-O photodissociation of the simplest Criegee intermediate (CH2OO). The FSSH trajectories were initiated on the lowest optically bright singlet excited state (S2) and propagated along the three most important internal coordinates, namely, O-O and C-O bond distances and the COO bond angle. Some of the trajectories end up on energetically lower PESs as a result of radiationless transfer through conical intersections. All of the trajectories lead to the dissociation of the O-O bond due to the dissociative nature of the excited PESs through one of the two dissociative channels. The simulation reveals that there is about 88.4% probability of dissociation through the lower channel leading to the H2CO (X1A1) and O (1D) products, whereas there is only 11.6% probability of dissociation through the upper channel leading to H2CO (a3A″) and O (3P) products.
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Affiliation(s)
- Mahesh K Sit
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Odisha 752050, India
| | - Subhasish Das
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Odisha 752050, India
| | - Kousik Samanta
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Odisha 752050, India
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4
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Karsili TNV, Marchetti B, Lester MI, Ashfold MNR. Electronic Absorption Spectroscopy and Photochemistry of Criegee Intermediates. Photochem Photobiol 2023; 99:4-18. [PMID: 35713380 DOI: 10.1111/php.13665] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 06/14/2022] [Indexed: 01/26/2023]
Abstract
Interest in Criegee intermediates (CIs), often termed carbonyl oxides, and their role in tropospheric chemistry has grown massively since the demonstration of laboratory-based routes to their formation and characterization in the gas phase. This article reviews current knowledge regarding the electronic spectroscopy of atmospherically relevant CIs like CH2 OO, CH3 CHOO, (CH3 )2 COO and larger CIs like methyl vinyl ketone oxide and methacrolein oxide that are formed in the ozonolysis of isoprene, and of selected conjugated carbene-derived CIs of interest in the synthetic chemistry community. Of the aforementioned atmospherically relevant CIs, all except CH2 OO and (CH3 )2 COO exist in different conformers which, under tropospheric conditions, can display strikingly different thermal loss rates via unimolecular and bimolecular processes. Calculated photolysis rates based on their absorption properties suggest that solar photolysis will rarely be a significant contributor to the total loss rate for any CI under tropospheric conditions. Nonetheless, there is ever-growing interest in the absorption cross sections and primary photochemistry of CIs following excitation to the strongly absorbing 1 ππ* state, and how this varies with CI, with conformer and with excitation wavelength. The later part of this review surveys the photochemical data reported to date, including a range of studies that demonstrate prompt photo-induced fission of the terminal O-O bond, and speculates about possible alternate decay processes that could occur following non-adiabatic coupling to, and dissociation from, highly internally excited levels of the electronic ground state of a CI.
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Affiliation(s)
| | | | - Marsha I Lester
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA
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5
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Antwi E, Ratliff JM, Ashfold MNR, Karsili TNV. Comparing the Excited State Dynamics of CH 2OO, the Simplest Criegee Intermediate, Following Vertical versus Adiabatic Excitation. J Phys Chem A 2022; 126:6236-6243. [PMID: 36067494 DOI: 10.1021/acs.jpca.2c05118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ab initio molecular dynamics studies of CH2OO molecules following excitation to the minimum-energy geometry of the strongly absorbing S2 (1ππ*) state reveal a much richer range of behaviors than just the prompt O-O bond fission, with unity quantum yield and retention of overall planarity, identified in previous vertical excitation studies from the ground (S0) state. Trajectories propagated for 100 fs from the minimum-energy region of the S2 state show a high surface hopping (nonadiabatic coupling) probability between the near-degenerate S2 and S1 (1nπ*) states at geometries close to the S2 minimum, which enables population transfer to the optically dark S1 state. Greater than 80% of the excited population undergoes O-O bond fission on the S2 or S1 potential energy surfaces (PESs) within the analysis period, mostly from nonplanar geometries wherein the CH2 moiety is twisted relative to the COO plane. Trajectory analysis also reveals recurrences in the O-O stretch coordinate, consistent with the resonance structure observed at the red end of the parent S2-S0 absorption spectrum, and a small propensity for out-of-plane motion after nonadiabatic coupling to the S1 PES that enables access to a conical intersection between the S1 and S0 states and cyclization to dioxirane products.
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Affiliation(s)
- Ernest Antwi
- Department of Chemistry, University of Louisiana at Lafayette, Lafayette, Louisiana 70503, United States
| | - Jordyn M Ratliff
- Department of Chemistry, University of Louisiana at Lafayette, Lafayette, Louisiana 70503, United States
| | - Michael N R Ashfold
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
| | - Tolga N V Karsili
- Department of Chemistry, University of Louisiana at Lafayette, Lafayette, Louisiana 70503, United States
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6
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Takahashi K. Wave Packet Calculation of Absolute UV Cross Section of Criegee Intermediates. J Phys Chem A 2022; 126:6080-6090. [PMID: 36041057 DOI: 10.1021/acs.jpca.2c04141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Criegee intermediates, R1R2COO, are reactive species formed in the atmosphere through the ozonolysis of alkenes. They have an intense ultraviolet (UV) adsorption between 300 to 400 nm. However, experimentally determining the absolute cross sections is not easy. We used wave packet propagation on an one-dimensional adiabatic potential energy curve (PEC) along the OO bond to simulate the UV spectra for various Criegee intermediates. Our results showed a very fast, ∼20 fs, decay out of the Franck-Condon region. This gives justification for using the semiclassical approach which was utilized in previous studies. From the comparison of various quantum chemistry methods, we found that multireference methods can give spectra with a width and cross section reproducing the experimental results, while single reference methods tend to give narrower skewed peaks with a larger cross section. From the test using wave packet propagation on various approximated PECs and transition moment functions, we show that the Gaussian approximation within the reflection method is valid. In addition, we found that we can obtain peak positions that reproduce the experimental results by shifting those obtained by MRCI+Q, CASSCF, EOMCCSD, and TDCAMB3LYP by -0.2, -1.0, -0.3, and -0.5 eV, respectively. The Gaussian approximation using peak position, oscillator strength, and peak width from MRCI+Q is a cost-effective way to simulate the UV spectra of Crigee intermediates for which experimental determination may be hard.
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Affiliation(s)
- Kaito Takahashi
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
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7
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Chen TY, Lee YP. Dynamics of the reaction CH 2I + O 2 probed via infrared emission of CO, CO 2, OH and H 2CO. Phys Chem Chem Phys 2020; 22:17540-17553. [PMID: 32808958 DOI: 10.1039/d0cp01940b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction CH2I + O2 has been widely employed recently for the production of the simplest Criegee intermediate CH2OO in laboratories, but the detailed dynamics of this reaction have been little explored. Infrared emission of several products of this reaction, initiated on irradiation of CH2I2 and O2 (∼8 Torr) in a flowing mixture at 308 or 248 nm, was recorded with a step-scan Fourier-transform spectrometer; possible routes of formation were identified according to the observed vibrational distribution of products and published theoretical potential-energy schemes. Upon irradiation at 308 nm, Boltzmann distributions of CO (v ≤ 5, J ≤ 19) with an average vibrational energy of 32 ± 3 kJ mol-1 and OH (v ≤ 3, J ≤ 5.5) with an average vibrational energy of 29 ± 4 kJ mol-1 were observed and assigned to the decomposition of HCOOH* to form CO + H2O and OH + HCO, respectively. The broadband emission of CO2 was simulated with two vibrational distributions of average energies (91 ± 4) and (147 ± 8) kJ mol-1 and assigned to be produced from the decomposition of HCOOH* and methylene bis(oxy), respectively. Upon irradiation of samples at 248 nm, the emission of OH and CO2 showed similar distributions with slightly greater energies, but the distribution of CO (v ≤ 11, J ≤ 19) became bimodal with average vibrational energies of (23 ± 4) and (107 ± 29) kJ mol-1, and branching (56 ± 5) : (44 ± 5). The additional large-v component is assigned to be produced from a secondary reaction HCO + O2 to form CO + HO2; HCO is a coproduct of OH. The branching between CO and OH is (50 ± 5) : (50 ± 5) at 308 nm and (64 ± 5) : (36 ± 4) at 248 nm, consistent with the mechanism according to which an additional channel to produce CO opens at 248 nm. Highly internally excited H2CO was also observed. With O2 at 16 Torr, the extrapolated nascent internal distributions are similar to those with O2 at 8 Torr except for a slight quenching effect.
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Affiliation(s)
- Ting-Yu Chen
- Department of Applied Chemistry and Institute of Molecular Science National Chiao Tung University, Hsinchu 30010, Taiwan.
| | - Yuan-Pern Lee
- Department of Applied Chemistry and Institute of Molecular Science National Chiao Tung University, Hsinchu 30010, Taiwan. and Center for Emergent Functional Matter Science, National Chiao Tung University, Hsinchu 30010, Taiwan and Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
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8
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Wang Z, Tong S, Chen M, Jing B, Li W, Guo Y, Ge M, Wang S. Study on ozonolysis of asymmetric alkenes with matrix isolation and FT-IR spectroscopy. CHEMOSPHERE 2020; 252:126413. [PMID: 32197171 DOI: 10.1016/j.chemosphere.2020.126413] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 02/24/2020] [Accepted: 03/02/2020] [Indexed: 06/10/2023]
Abstract
O3 and alkenes are important reactants in the formation of SOA in the atmosphere. The intermediates and reaction mechanism of ozonation of alkene is an important topic in atmospheric chemistry. In this study, the low-temperature matrix isolation was used to capture the intermediates such as Primary ozonides (POZs), Criegee Intermediates (CIs), and Secondary ozonides (SOZs) generated from ozonation of 2-methyl-1-butene (2M1B) and 2-methyl-2-butene (2M2B). The results have been identified by the vacuum infrared spectroscopy and theoretical calculation. Our results show that during the ozonation of asymmetric alkenes, two kinds of CIs and more than two kinds of SOZs were generated due to the different decomposition modes of POZs. The infrared absorption peaks of (CH3)2COO and CH3CH2C(CH3)OO for O-O telescopic vibration was determined to be 889 cm-1 and 913 cm-1, respectively. Using the merged jet method, it was found that a large amount of HCHO was produced during the ozonation of 2M1B, and glyoxal and methylglyoxal were produced in the ozonation of 2M2B. Our findings highlight the importance of asymmetric alkene ozonolysis reactions in producing CIs, further improving the understanding of the generation of CIs from ozonation of alkenes.
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Affiliation(s)
- Zhen Wang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Shengrui Tong
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China.
| | - Meifang Chen
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; College of Chemistry and Material Science, The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Normal University, Wuhu, 241000, PR China
| | - Bo Jing
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China
| | - Weiran Li
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Yucong Guo
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China
| | - Maofa Ge
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, PR China.
| | - Sufan Wang
- College of Chemistry and Material Science, The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Normal University, Wuhu, 241000, PR China
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9
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Barber VP, Esposito VJ, Trabelsi T, Hansen AS, McHenry TA, Francisco JS, Lester MI. Experimental and computational investigation of vinoxy and 1-methylvinoxy radicals from the unimolecular decay of alkyl-substituted Criegee intermediates. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137478] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Mir ZS, Lewis TR, Onel L, Blitz MA, Seakins PW, Stone D. CH2OO Criegee intermediate UV absorption cross-sections and kinetics of CH2OO + CH2OO and CH2OO + I as a function of pressure. Phys Chem Chem Phys 2020; 22:9448-9459. [DOI: 10.1039/d0cp00988a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The UV absorption cross-sections of the Criegee intermediate CH2OO, and kinetics of the CH2OO self-reaction and the reaction of CH2OO with I are reported as a function of pressure at 298 K.
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Affiliation(s)
- Zara S. Mir
- School of Chemistry, University of Leeds, University of Leeds
- UK
| | - Thomas R. Lewis
- School of Chemistry, University of Leeds, University of Leeds
- UK
| | - Lavinia Onel
- School of Chemistry, University of Leeds, University of Leeds
- UK
| | - Mark A. Blitz
- School of Chemistry, University of Leeds, University of Leeds
- UK
- National Centre for Atmospheric Science, University of Leeds
- UK
| | - Paul W. Seakins
- School of Chemistry, University of Leeds, University of Leeds
- UK
| | - Daniel Stone
- School of Chemistry, University of Leeds, University of Leeds
- UK
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11
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Stephenson TA, Lester MI. Unimolecular decay dynamics of Criegee intermediates: Energy-resolved rates, thermal rates, and their atmospheric impact. INT REV PHYS CHEM 2019. [DOI: 10.1080/0144235x.2020.1688530] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Thomas A. Stephenson
- Department of Chemistry and Biochemistry, Swarthmore College, Swarthmore, PA, USA
| | - Marsha I. Lester
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA, USA
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12
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Chicharro DV, Poullain SM, Bañares L, Hrodmarsson HR, García GA, Loison JC. Threshold photoelectron spectrum of the CH2OO Criegee intermediate. Phys Chem Chem Phys 2019; 21:12763-12766. [DOI: 10.1039/c9cp02538c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present the photoelectron spectroscopy of the simplest Criegee intermediate, CH2OO, close to the first ionization energy.
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Affiliation(s)
- David V. Chicharro
- Departamento de Química Física
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- 28040 Madrid
- Spain
| | - Sonia Marggi Poullain
- Departamento de Química
- Módulo 13
- Facultad de Ciencias
- Universidad Autónoma de Madrid
- 28049 Madrid
| | - Luis Bañares
- Departamento de Química Física
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- 28040 Madrid
- Spain
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13
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Yin C, Takahashi K. How big is the substituent dependence of the solar photolysis rate of Criegee intermediates? Phys Chem Chem Phys 2018; 20:16247-16255. [DOI: 10.1039/c8cp02015a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Substituent dependence of the UV spectra of Criegee intermediates were calculated using multireference methods.
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Affiliation(s)
- Cangtao Yin
- Institute of Atomic and Molecular Sciences
- Academia Sinica
- Taipei 10617
- Taiwan
| | - Kaito Takahashi
- Institute of Atomic and Molecular Sciences
- Academia Sinica
- Taipei 10617
- Taiwan
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14
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Sršeň Š, Hollas D, Slavíček P. UV absorption of Criegee intermediates: quantitative cross sections from high-level ab initio theory. Phys Chem Chem Phys 2018; 20:6421-6430. [DOI: 10.1039/c8cp00199e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Criegee Intermediates (CIs) are important intermediates in atmospheric and combustion chemistry. We quantitatively model their UV absorption spectra using ab initio techniques.
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Affiliation(s)
- Š. Sršeň
- University of Chemistry and Technology Prague
- Department of Physical Chemistry
- 16628 Prague 6
- Czech Republic
| | - D. Hollas
- University of Chemistry and Technology Prague
- Department of Physical Chemistry
- 16628 Prague 6
- Czech Republic
| | - P. Slavíček
- University of Chemistry and Technology Prague
- Department of Physical Chemistry
- 16628 Prague 6
- Czech Republic
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15
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Trabelsi T, Kumar M, Francisco JS. Substituent effects on the spectroscopic properties of Criegee intermediates. J Chem Phys 2017; 147:164303. [DOI: 10.1063/1.4998170] [Citation(s) in RCA: 7] [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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16
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Vansco MF, Li H, Lester MI. Prompt release of O 1D products upon UV excitation of CH2OO Criegee intermediates. J Chem Phys 2017; 147:013907. [DOI: 10.1063/1.4977987] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Michael F. Vansco
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA
| | - Hongwei Li
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA
| | - Marsha I. Lester
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA
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17
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Ting AWL, Lin JJM. UV Spectrum of the Simplest Deuterated Criegee Intermediate CD2
OO. J CHIN CHEM SOC-TAIP 2017. [DOI: 10.1002/jccs.201700049] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Allen Wei-Lun Ting
- Institute of Atomic and Molecular Sciences; Academia Sinica; Taipei 10617 Taiwan
| | - Jim Jr-Min Lin
- Institute of Atomic and Molecular Sciences; Academia Sinica; Taipei 10617 Taiwan
- Department of Chemistry; National Taiwan University; Taipei 10617 Taiwan
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18
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Liu Y, Liu F, Liu S, Dai D, Dong W, Yang X. A kinetic study of the CH2OO Criegee intermediate reaction with SO2, (H2O)2, CH2I2 and I atoms using OH laser induced fluorescence. Phys Chem Chem Phys 2017; 19:20786-20794. [DOI: 10.1039/c7cp04336h] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The OH laser induced fluorescence method was used to study the kinetics of CH2OO reacting with SO2, (H2O)2, CH2I2 and I atoms.
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Affiliation(s)
- Yiqiang Liu
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- China
| | - Fenghua Liu
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- China
| | - Siyue Liu
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- China
| | - Dongxu Dai
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- China
| | - Wenrui Dong
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- China
| | - Xueming Yang
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- China
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19
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Chhantyal-Pun R, Welz O, Savee JD, Eskola AJ, Lee EPF, Blacker L, Hill HR, Ashcroft M, Khan MAH, Lloyd-Jones GC, Evans L, Rotavera B, Huang H, Osborn DL, Mok DKW, Dyke JM, Shallcross DE, Percival CJ, Orr-Ewing AJ, Taatjes CA. Direct Measurements of Unimolecular and Bimolecular Reaction Kinetics of the Criegee Intermediate (CH3)2COO. J Phys Chem A 2016; 121:4-15. [DOI: 10.1021/acs.jpca.6b07810] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rabi Chhantyal-Pun
- School of Chemistry, The University of Bristol, Cantock’s
Close BS8 1TS, U.K
| | - Oliver Welz
- Combustion Research Facility, Mail Stop
9055, Sandia National Laboratories, Livermore, California 94551-0969, United States
| | - John D. Savee
- Combustion Research Facility, Mail Stop
9055, Sandia National Laboratories, Livermore, California 94551-0969, United States
| | - Arkke J. Eskola
- Combustion Research Facility, Mail Stop
9055, Sandia National Laboratories, Livermore, California 94551-0969, United States
| | - Edmond P. F. Lee
- School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, U.K
- Department
of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
| | - Lucy Blacker
- School of Chemistry, The University of Bristol, Cantock’s
Close BS8 1TS, U.K
| | - Henry R. Hill
- School of Chemistry, The University of Bristol, Cantock’s
Close BS8 1TS, U.K
| | - Matilda Ashcroft
- School of Chemistry, The University of Bristol, Cantock’s
Close BS8 1TS, U.K
| | - M. Anwar H. Khan
- School of Chemistry, The University of Bristol, Cantock’s
Close BS8 1TS, U.K
| | - Guy C. Lloyd-Jones
- School of Chemistry, The University of Bristol, Cantock’s
Close BS8 1TS, U.K
| | - Louise Evans
- School of Chemistry, The University of Bristol, Cantock’s
Close BS8 1TS, U.K
| | - Brandon Rotavera
- Combustion Research Facility, Mail Stop
9055, Sandia National Laboratories, Livermore, California 94551-0969, United States
| | - Haifeng Huang
- Combustion Research Facility, Mail Stop
9055, Sandia National Laboratories, Livermore, California 94551-0969, United States
| | - David L. Osborn
- Combustion Research Facility, Mail Stop
9055, Sandia National Laboratories, Livermore, California 94551-0969, United States
| | - Daniel K. W. Mok
- The Centre
for Atmospheric Science, The School of Earth, Atmospheric and Environmental
Science, The University of Manchester, Simon Building, Brunswick Street, Manchester M13 9PL, U.K
| | - John M. Dyke
- Department
of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
| | | | - Carl J. Percival
- The Centre
for Atmospheric Science, The School of Earth, Atmospheric and Environmental
Science, The University of Manchester, Simon Building, Brunswick Street, Manchester M13 9PL, U.K
| | - Andrew J. Orr-Ewing
- School of Chemistry, The University of Bristol, Cantock’s
Close BS8 1TS, U.K
| | - Craig A. Taatjes
- Combustion Research Facility, Mail Stop
9055, Sandia National Laboratories, Livermore, California 94551-0969, United States
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20
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Elsamra RMI, Jalan A, Buras ZJ, Middaugh JE, Green WH. Temperature- and Pressure-Dependent Kinetics of CH2OO + CH3COCH3and CH2OO + CH3CHO: Direct Measurements and Theoretical Analysis. INT J CHEM KINET 2016. [DOI: 10.1002/kin.21007] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Rehab M. I. Elsamra
- Department of Chemical Engineering; Massachusetts Institute of Technology; Cambridge MA 02139
- Department of Chemistry; Faculty of Science; Alexandria University; Ibrahimia 21321 Alexandria Egypt
| | - Amrit Jalan
- Department of Chemical Engineering; Massachusetts Institute of Technology; Cambridge MA 02139
| | - Zachary J. Buras
- Department of Chemical Engineering; Massachusetts Institute of Technology; Cambridge MA 02139
| | - Joshua E. Middaugh
- Department of Chemical Engineering; Massachusetts Institute of Technology; Cambridge MA 02139
| | - William H. Green
- Department of Chemical Engineering; Massachusetts Institute of Technology; Cambridge MA 02139
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21
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22
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Kalinowski J, Foreman ES, Kapnas KM, Murray C, Räsänen M, Benny Gerber R. Dynamics and spectroscopy of CH2OO excited electronic states. Phys Chem Chem Phys 2016; 18:10941-6. [DOI: 10.1039/c6cp00807k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ab initio molecular dynamics with a high level of theory is used to explore the fate of a Criegee intermediate after an initial electronic excitation. Results are confronted with experiments.
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Affiliation(s)
- Jaroslaw Kalinowski
- Department of Chemistry
- University of Helsinki
- Finland
- Max-Planck Institute for Chemical Energy Conversion
- 45470 Mülheim an der Ruhr
| | | | | | | | | | - R. Benny Gerber
- Department of Chemistry
- University of Helsinki
- Finland
- University of California
- Irvine
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23
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Miliordos E, Xantheas SS. The Origin of the Reactivity of the Criegee Intermediate: Implications for Atmospheric Particle Growth. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509685] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Evangelos Miliordos
- Physical Sciences Division Pacific Northwest National Laboratory 902 Battelle Boulevard, P.O. Box 999, MS K1-83 Richland WA 99352 USA
| | - Sotiris S. Xantheas
- Physical Sciences Division Pacific Northwest National Laboratory 902 Battelle Boulevard, P.O. Box 999, MS K1-83 Richland WA 99352 USA
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24
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Miliordos E, Xantheas SS. The Origin of the Reactivity of the Criegee Intermediate: Implications for Atmospheric Particle Growth. Angew Chem Int Ed Engl 2015; 55:1015-9. [DOI: 10.1002/anie.201509685] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Evangelos Miliordos
- Physical Sciences Division Pacific Northwest National Laboratory 902 Battelle Boulevard, P.O. Box 999, MS K1-83 Richland WA 99352 USA
| | - Sotiris S. Xantheas
- Physical Sciences Division Pacific Northwest National Laboratory 902 Battelle Boulevard, P.O. Box 999, MS K1-83 Richland WA 99352 USA
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25
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Huang YH, Chen LW, Lee YP. Simultaneous infrared detection of the ICH2OO radical and Criegee intermediate CH2OO: the pressure dependence of the yield of CH2OO in the reaction CH2I + O2. J Phys Chem Lett 2015; 6:4610-4615. [PMID: 26539815 DOI: 10.1021/acs.jpclett.5b02298] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The simplest Criegee intermediate CH2OO, important in atmospheric reactions, has been recently produced from the reaction of CH2I + O2 and detected with various methods. In this reaction, the yield of CH2OO decreases with increasing pressure because of the stabilization of the adduct ICH2OO, but no definitive spectral identification of ICH2OO has been reported. We recorded the infrared spectrum of ICH2OO using the same reaction under high pressure; the spectrum agrees with that simulated according to theoretical predictions. With direct detection of both CH2OO and ICH2OO, we determined the pressure dependence of the yield of CH2OO. The yield of CH2OO near 1 atm is greater than previously reported values, which might have significant consequences in atmospheric chemistry.
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Affiliation(s)
- Yu-Hsuan Huang
- Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University , 1001, Ta-Hsueh Road, Hsinchu 30010, Taiwan
| | - Li-Wei Chen
- Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University , 1001, Ta-Hsueh Road, Hsinchu 30010, Taiwan
| | - Yuan-Pern Lee
- Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University , 1001, Ta-Hsueh Road, Hsinchu 30010, Taiwan
- Institute of Atomic and Molecular Sciences, Academia Sinica , Taipei 10617, Taiwan
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26
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Nakajima M, Endo Y. Observation of hydroxymethyl hydroperoxide in a reaction system containing CH2OO and water vapor through pure rotational spectroscopy. J Chem Phys 2015; 143:164307. [DOI: 10.1063/1.4933433] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Affiliation(s)
- Masakazu Nakajima
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Yasuki Endo
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
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27
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Li J, Guo H. Full-Dimensional Potential Energy Surface and Ro-vibrational Levels of Dioxirane. J Phys Chem A 2015; 120:2991-8. [DOI: 10.1021/acs.jpca.5b08491] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jun Li
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
- Department
of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Hua Guo
- Department
of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
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28
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Yu HG, Ndengue S, Li J, Dawes R, Guo H. Vibrational energy levels of the simplest Criegee intermediate (CH2OO) from full-dimensional Lanczos, MCTDH, and MULTIMODE calculations. J Chem Phys 2015; 143:084311. [DOI: 10.1063/1.4929707] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Hua-Gen Yu
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Steve Ndengue
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri 65409, USA
| | - Jun Li
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - Richard Dawes
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri 65409, USA
| | - Hua Guo
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, USA
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29
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Foreman ES, Murray C. Kinetics of IO Production in the CH2I + O2 Reaction Studied by Cavity Ring-Down Spectroscopy. J Phys Chem A 2015; 119:8981-90. [DOI: 10.1021/acs.jpca.5b05058] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Elizabeth S. Foreman
- Department
of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Craig Murray
- Department
of Chemistry, University of California, Irvine, Irvine, California 92697, United States
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30
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31
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Lee YP. Perspective: Spectroscopy and kinetics of small gaseous Criegee intermediates. J Chem Phys 2015; 143:020901. [DOI: 10.1063/1.4923165] [Citation(s) in RCA: 134] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Yuan-Pern Lee
- Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, Hsinchu 30010, Taiwan and Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
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32
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Vereecken L, Glowacki DR, Pilling MJ. Theoretical Chemical Kinetics in Tropospheric Chemistry: Methodologies and Applications. Chem Rev 2015; 115:4063-114. [DOI: 10.1021/cr500488p] [Citation(s) in RCA: 146] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Luc Vereecken
- Max Planck Institute for Chemistry, 55128 Mainz, Germany
| | - David R. Glowacki
- PULSE
Institute and Department of Chemistry, Stanford University, Stanford, California 94305, United States
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
- Department
of Computer Science, University of Bristol, Bristol BS8 1UB, United Kingdom
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33
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Lee YF, Lee YP. Infrared absorption of iodomethylperoxy (syn-ICH2OO) radical generated upon photolysis of CH2I2and O2in solidpara-H2. Mol Phys 2015. [DOI: 10.1080/00268976.2015.1012129] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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34
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Wiens JP, Shuman NS, Viggiano AA. Production of and Dissociative Electron Attachment to the Simplest Criegee Intermediate in an Afterglow. J Phys Chem Lett 2015; 6:383-387. [PMID: 26261951 DOI: 10.1021/jz502569w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The simplest Criegee intermediate, CH2OO, has been produced in a flowing afterglow using a novel technique. CH2I is produced by dissociative electron attachment to CH2I2, leading to the established reaction CH2I + O2 → CH2OO + I. The presence of CH2OO is established by observation of dissociative electron attachment to yield O(-) using the variable electron and neutral density attachment mass spectrometry (VENDAMS) technique. The measurements establish the electron attachment rate coefficient of thermal electrons at 300 K to CH2OO as 1.2 ± 0.3 × 10(-8) cm(3) s(-1). Thermal electron attachment is solely dissociative and is not a promising route to producing stable CH2OO(-). The results open the possibility of measuring ion-molecule chemistry involving Criegee intermediates, as well as the reactivity of other unstable radicals produced in an analogous manner.
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Affiliation(s)
- Justin P Wiens
- Air Force Research Laboratory, Space Vehicles Directorate, Kirtland Air Force Base, New Mexico 87117, United States
| | - Nicholas S Shuman
- Air Force Research Laboratory, Space Vehicles Directorate, Kirtland Air Force Base, New Mexico 87117, United States
| | - Albert A Viggiano
- Air Force Research Laboratory, Space Vehicles Directorate, Kirtland Air Force Base, New Mexico 87117, United States
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35
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Foreman ES, Kapnas KM, Jou Y, Kalinowski J, Feng D, Gerber RB, Murray C. High resolution absolute absorption cross sections of the B̃1A′–X̃1A′ transition of the CH2OO biradical. Phys Chem Chem Phys 2015; 17:32539-46. [DOI: 10.1039/c5cp04977f] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbonyl oxides, or Criegee intermediates, are formed from the gas phase ozonolysis of alkenes and play a pivotal role in night-time and urban area atmospheric chemistry.
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Affiliation(s)
| | - Kara M. Kapnas
- Department of Chemistry
- University of California
- Irvine, USA
| | - YiTien Jou
- Department of Chemistry
- University of California
- Irvine, USA
| | | | - David Feng
- Department of Mechanical and Aerospace Engineering
- University of California
- Irvine, USA
| | - R. Benny Gerber
- Department of Chemistry
- University of California
- Irvine, USA
- Department of Chemistry
- University of Helsinki
| | - Craig Murray
- Department of Chemistry
- University of California
- Irvine, USA
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36
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Chhantyal-Pun R, Davey A, Shallcross DE, Percival CJ, Orr-Ewing AJ. A kinetic study of the CH2OO Criegee intermediate self-reaction, reaction with SO2 and unimolecular reaction using cavity ring-down spectroscopy. Phys Chem Chem Phys 2015; 17:3617-26. [DOI: 10.1039/c4cp04198d] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A rate coefficient is reported for the CH2OO self-reaction and evidence presented for SO2-catalysed CH2OO isomerization or intersystem crossing.
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Affiliation(s)
| | | | | | - Carl J. Percival
- Centre for Atmospheric Science
- School of Earth
- Atmospheric and Environmental Sciences
- University of Manchester
- Manchester
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37
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Dawes R, Jiang B, Guo H. UV Absorption Spectrum and Photodissociation Channels of the Simplest Criegee Intermediate (CH2OO). J Am Chem Soc 2014; 137:50-3. [DOI: 10.1021/ja510736d] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Richard Dawes
- Department
of Chemistry, Missouri University of Science and Technology, Rolla, Missouri 65409, United States
| | - Bin Jiang
- Department
of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Hua Guo
- Department
of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
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38
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Huang YH, Lee YP. Infrared absorption of gaseous CH2BrOO detected with a step-scan Fourier-transform absorption spectrometer. J Chem Phys 2014; 141:164302. [DOI: 10.1063/1.4897982] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Yu-Hsuan Huang
- Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Yuan-Pern Lee
- Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, Hsinchu 30010, Taiwan
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
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39
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Samanta K, Beames JM, Lester MI, Subotnik JE. Quantum dynamical investigation of the simplest Criegee intermediate CH2OO and its O–O photodissociation channels. J Chem Phys 2014; 141:134303. [DOI: 10.1063/1.4894746] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Affiliation(s)
- Kousik Samanta
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA
| | - Joseph M. Beames
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA
| | - Marsha I. Lester
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA
| | - Joseph E. Subotnik
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA
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40
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Meng Q, Meyer HD. A full-dimensional multilayer multiconfiguration time-dependent Hartree study on the ultraviolet absorption spectrum of formaldehyde oxide. J Chem Phys 2014; 141:124309. [DOI: 10.1063/1.4896201] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [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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Ting WL, Chang CH, Lee YF, Matsui H, Lee YP, Lin JJM. Detailed mechanism of the CH2I + O2reaction: Yield and self-reaction of the simplest Criegee intermediate CH2OO. J Chem Phys 2014; 141:104308. [DOI: 10.1063/1.4894405] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Wei-Lun Ting
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
| | - Chun-Hung Chang
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
| | - Yu-Fang Lee
- Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, 1001, Ta-Hsueh Road, Hsinchu 30010, Taiwan
| | - Hiroyuki Matsui
- Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, 1001, Ta-Hsueh Road, Hsinchu 30010, Taiwan
| | - Yuan-Pern Lee
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
- Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, 1001, Ta-Hsueh Road, Hsinchu 30010, Taiwan
| | - Jim Jr-Min Lin
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
- Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, 1001, Ta-Hsueh Road, Hsinchu 30010, Taiwan
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
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42
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Early time detection of OH radical products from energized Criegee intermediates CH2OO and CH3CHOO. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.02.049] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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43
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Buras ZJ, Elsamra RMI, Jalan A, Middaugh JE, Green WH. Direct Kinetic Measurements of Reactions between the Simplest Criegee Intermediate CH2OO and Alkenes. J Phys Chem A 2014; 118:1997-2006. [DOI: 10.1021/jp4118985] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zachary J. Buras
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
| | - Rehab M. I. Elsamra
- Department
of Chemistry, Faculty of Science, Alexandria University, Ibrahimia, 21321, Alexandria, Egypt
| | - Amrit Jalan
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
| | - Joshua E. Middaugh
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
| | - William H. Green
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
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44
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Wei WM, Zheng RH, Pan YL, Wu YK, Yang F, Hong S. Ozone Dissociation to Oxygen Affected by Criegee Intermediate. J Phys Chem A 2014; 118:1644-50. [DOI: 10.1021/jp4121047] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wen-mei Wei
- Department
of Chemistry, College of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, P. R. China
| | - Ren-hui Zheng
- Beijing National Laboratory for Molecular
Sciences, State Key Laboratory for Structural Chemistry of Unstable
and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun, Beijing 100190, P. R. China
| | - Yue-li Pan
- Department
of Chemistry, College of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, P. R. China
| | - Yun-kai Wu
- Department
of Chemistry, College of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, P. R. China
| | - Fan Yang
- Department
of Chemistry, College of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, P. R. China
| | - Shi Hong
- Department
of Chemistry, College of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, P. R. China
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45
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Taatjes CA, Shallcross DE, Percival CJ. Research frontiers in the chemistry of Criegee intermediates and tropospheric ozonolysis. Phys Chem Chem Phys 2014; 16:1704-18. [DOI: 10.1039/c3cp52842a] [Citation(s) in RCA: 214] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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46
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Ting WL, Chen YH, Chao W, Smith MC, Lin JJM. The UV absorption spectrum of the simplest Criegee intermediate CH2OO. Phys Chem Chem Phys 2014; 16:10438-43. [DOI: 10.1039/c4cp00877d] [Citation(s) in RCA: 110] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The absolute UV absorption spectrum of CH2OO was determined using multiple methods.
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Affiliation(s)
- Wei-Lun Ting
- Institute of Atomic and Molecular Sciences
- Academia Sinica
- Taipei 10617, Taiwan
| | - Ying-Hsuan Chen
- Institute of Atomic and Molecular Sciences
- Academia Sinica
- Taipei 10617, Taiwan
| | - Wen Chao
- Institute of Atomic and Molecular Sciences
- Academia Sinica
- Taipei 10617, Taiwan
- Department of Chemistry
- National Taiwan University
| | - Mica C. Smith
- Institute of Atomic and Molecular Sciences
- Academia Sinica
- Taipei 10617, Taiwan
- Department of Chemistry
- University of California at Berkeley
| | - Jim Jr-Min Lin
- Institute of Atomic and Molecular Sciences
- Academia Sinica
- Taipei 10617, Taiwan
- Department of Chemistry
- National Taiwan University
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47
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Sheps L. Absolute Ultraviolet Absorption Spectrum of a Criegee Intermediate CH2OO. J Phys Chem Lett 2013; 4:4201-4205. [PMID: 26296165 DOI: 10.1021/jz402191w] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We present the time-resolved UV absorption spectrum of the B̃ ((1)A') ← X̃ ((1)A') electronic transition of formaldehyde oxide, CH2OO, produced by the reaction of CH2I radicals with O2. In contrast to its UV photodissociation action spectrum, the absorption spectrum of formaldehyde oxide extends to longer wavelengths and exhibits resolved vibrational structure on its low-energy side. Chemical kinetics measurements of its reactivity establish the identity of the absorbing species as CH2OO. Separate measurements of the initial CH2I radical concentration allow a determination of the absolute absorption cross section of CH2OO, with the value at the peak of the absorption band, 355 nm, of σabs = (3.6 ± 0.9) × 10(-17) cm(2). The difference between the absorption and action spectra likely arises from excitation to long-lived B̃ ((1)A') vibrational states that relax to lower electronic states by fluorescence or nonradiative processes, rather than by photodissociation.
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Affiliation(s)
- Leonid Sheps
- Combustion Research Facility, Sandia National Laboratories, Mail Stop 9055, Livermore, California 94551-0969, United States
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Lehman JH, Li H, Lester MI. Ion imaging studies of the photodissociation dynamics of CH2I2 at 248nm. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2013.10.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Karton A, Kettner M, Wild D. Sneaking up on the Criegee intermediate from below: Predicted photoelectron spectrum of the CH2OO− anion and W3-F12 electron affinity of CH2OO. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2013.08.075] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Beames JM, Liu F, Lu L, Lester MI. UV spectroscopic characterization of an alkyl substituted Criegee intermediate CH3CHOO. J Chem Phys 2013; 138:244307. [DOI: 10.1063/1.4810865] [Citation(s) in RCA: 105] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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