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Title: Four-Carbon Criegee Intermediate from Isoprene Ozonolysis: Methyl Vinyl Ketone Oxide Synthesis, Infrared Spectrum, and OH Production

Journal Article · · Journal of the American Chemical Society

The reaction of ozone with isoprene, one of the most abundant volatile organic compounds in the atmosphere, produces three distinct carbonyl oxide species (RR'COO) known as Criegee intermediates: formaldehyde oxide (CH2OO), methyl vinyl ketone oxide (MVK-OO), and methacrolein oxide (MACR-OO). The nature of the substituents (R,R' = H, CH3, CH=CH2) and conformations of the Criegee intermediates control their subsequent chemistry in the atmosphere. In particular, unimolecular decay of MVK-OO is predicted to be the major source of hydroxyl radicals (OH) in isoprene ozonolysis. Our study reports the initial laboratory synthesis and direct detection of MVK-OO through reaction of a photolytically generated, resonance-stabilized monoiodoalkene radical with O2. MVK-OO is characterized utilizing infrared (IR) action spectroscopy, in which IR activation of MVK-OO with two quanta of CH stretch at ca. 6000 cm–1 is coupled with ultraviolet detection of the resultant OH products. MVK-OO is identified by comparison of the experimentally observed IR spectral features with theoretically predicted IR absorption spectra. For syn-MVK-OO, the rate of appearance of OH products agrees with the unimolecular decay rate predicted using statistical theory with tunneling. This validates the hydrogen atom transfer mechanism and computed transition-state barrier (18.0 kcal mol–1) leading to OH products. Theoretical calculations display a further roaming pathway between the separating radical fragments, which results in other products. Master equation modeling yields a thermal unimolecular decay rate for syn-MVK-OO of 33 s–1 (298 K, 1 atm). For anti-MVK-OO, theoretical exploration of several unimolecular decay pathways predicts that isomerization to dioxole is the most likely initial step to products.

Research Organization:
Univ. of Pennsylvania, Philadelphia, PA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division; National Science Foundation (NSF)
Grant/Contract Number:
FG02-87ER13792; AC02-06CH11357; CHE-1664572; CHE-1464744; DMR-1628407
OSTI ID:
1598267
Journal Information:
Journal of the American Chemical Society, Vol. 140, Issue 34; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 98 works
Citation information provided by
Web of Science

References (78)

Atmospheric fates of Criegee intermediates in the ozonolysis of isoprene journal January 2016
Mechanism of OH Formation from Ozonolysis of Isoprene:  A Quantum-Chemical Study journal March 2002
UV Spectroscopic Characterization of Dimethyl- and Ethyl-Substituted Carbonyl Oxides journal March 2014
Ab Initio Computations and Active Thermochemical Tables Hand in Hand: Heats of Formation of Core Combustion Species journal August 2017
Unimolecular dissociation dynamics of vibrationally activated CH3CHOO Criegee intermediates to OH radical products journal April 2016
Computational Studies of the Isomerization and Hydration Reactions of Acetaldehyde Oxide and Methyl Vinyl Carbonyl Oxide journal September 2010
Global data set of biogenic VOC emissions calculated by the MEGAN model over the last 30 years journal January 2014
Stabilization of the Simplest Criegee Intermediate from the Reaction between Ozone and Ethylene: A High-Level Quantum Chemical and Kinetic Analysis of Ozonolysis journal May 2015
Ultraviolet Spectrum and Photochemistry of the Simplest Criegee Intermediate CH 2 OO journal December 2012
How does substitution affect the unimolecular reaction rates of Criegee intermediates? journal January 2017
Deep tunneling in the unimolecular decay of CH 3 CHOO Criegee intermediates to OH radical products journal December 2016
Quantum Chemical and Master Equation Studies of the Methyl Vinyl Carbonyl Oxides Formed in Isoprene Ozonolysis journal December 2005
Electron affinities of the first‐row atoms revisited. Systematic basis sets and wave functions journal May 1992
UV–visible spectra and gas-phase rate coefficients for the reaction of 2,3-pentanedione and 2,4-pentanedione with OH radicals journal April 2015
Mechanism of HO x Formation in the Gas-Phase Ozone-Alkene Reaction. 2. Prompt versus Thermal Dissociation of Carbonyl Oxides to Form OH journal May 2001
Absolute UV absorption cross sections of dimethyl substituted Criegee intermediate (CH 3 ) 2 COO journal June 2016
Gas-phase tropospheric chemistry of biogenic volatile organic compounds: a review journal January 2003
Kinetic and Theoretical Investigation of the Gas-Phase Ozonolysis of Isoprene:  Carbonyl Oxides as an Important Source for OH Radicals in the Atmosphere journal August 1997
Formation Yields of Methyl Vinyl Ketone and Methacrolein from the Gas-Phase Reaction of O3 with Isoprene journal August 1994
Effects of the substituents on the reactivity of carbonyl oxides. A theoretical study on the reaction of substituted carbonyl oxides with water journal January 2011
Unimolecular Decay of the Dimethyl-Substituted Criegee Intermediate in Alkene Ozonolysis: Decay Time Scales and the Importance of Tunneling journal August 2017
Semiclassical limit of quantum mechanical transition state theory for nonseparable systems journal March 1975
Investigation of the reaction of ozone with isoprene, methacrolein and methyl vinyl ketone using the HELIOS chamber journal January 2017
A new atmospherically relevant oxidant of sulphur dioxide journal August 2012
Direct kinetic measurement of the reaction of the simplest Criegee intermediate with water vapor journal January 2015
Competition between H 2 O and (H 2 O) 2 reactions with CH 2 OO/CH 3 CHOO journal January 2016
Tunneling effects in the unimolecular decay of (CH 3 ) 2 COO Criegee intermediates to OH radical products journal April 2017
A novel and facile decay path of Criegee intermediates by intramolecular insertion reactions via roaming transition states journal March 2015
Ab Initio Reaction Rate Constants Computed Using Semiclassical Transition-State Theory: HO + H 2 → H 2 O + H and Isotopologues journal May 2011
Formation of highly oxidized multifunctional compounds: autoxidation of peroxy radicals formed in the ozonolysis of alkenes – deduced from structure–product relationships journal January 2015
Unimolecular Decay of Criegee Intermediates to OH Radical Products: Prompt and Thermal Decay Processes journal March 2018
Energy transfer in master equation simulations: A new approach journal December 2009
OH Yields in the Gas-Phase Reactions of Ozone with Alkenes journal September 1999
The gas-phase ozonolysis of unsaturated volatile organic compounds in the troposphere journal January 2008
Direct Kinetic Measurements of Criegee Intermediate (CH2OO) Formed by Reaction of CH2I with O2 journal January 2012
MRCISD Studies of the Dissociation of Vinylhydroperoxide, CH 2 CHOOH: There Is a Saddle Point journal May 2012
Impact of the water dimer on the atmospheric reactivity of carbonyl oxides journal January 2016
A practical implementation of semi-classical transition state theory for polyatomics journal October 2010
Effect of the damping function in dispersion corrected density functional theory journal March 2011
Multiple-Well, multiple-path unimolecular reaction systems. I. MultiWell computer program suite journal January 2001
Measurement of OH radical formation from the reaction of ozone with several biogenic alkenes journal October 1998
Research frontiers in the chemistry of Criegee intermediates and tropospheric ozonolysis journal January 2014
Direct observation of OH formation from stabilised Criegee intermediates journal January 2014
Quantum Chemical and Statistical Rate Theory Studies of the Vinyl Hydroperoxides Formed in trans -2-Butene and 2,3-Dimethyl-2-butene Ozonolysis journal February 2018
Regional and global impacts of Criegee intermediates on atmospheric sulphuric acid concentrations and first steps of aerosol formation journal January 2013
Selective deuteration illuminates the importance of tunneling in the unimolecular decay of Criegee intermediates to hydroxyl radical products journal November 2017
Reaction Paths of Keto−Enol Tautomerization of β-Diketones journal April 2004
Keto-enol tautomerism in linear and cyclic β-diketones: A DFT study in vacuo and in solution journal January 2008
Semiclassical transition state theory. A new perspective journal October 1993
UV spectroscopic characterization of an alkyl substituted Criegee intermediate CH 3 CHOO journal June 2013
Formation of OH radicals in the gas phase reactions of O 3 with a series of terpenes journal January 1992
Adventures in ozoneland: down the rabbit-hole journal January 2011
Measurements of OH and HO2 yields from the gas phase ozonolysis of isoprene journal January 2010
Photodissociation dynamics of acetylacetone: The OH product state distribution journal June 1999
The OH production from the π–π* transition of acetylacetone journal January 1999
Reformulation and Solution of the Master Equation for Multiple-Well Chemical Reactions journal May 2013
Kinetics of a Criegee intermediate that would survive high humidity and may oxidize atmospheric SO 2 journal August 2015
Unimolecular decay strongly limits the atmospheric impact of Criegee intermediates journal January 2017
UV absorption probing of the conformer-dependent reactivity of a Criegee intermediate CH 3 CHOO journal January 2014
Pressure-Dependent Criegee Intermediate Stabilization from Alkene Ozonolysis journal April 2016
Direct Measurements of Conformer-Dependent Reactivity of the Criegee Intermediate CH3CHOO journal April 2013
Hydroxyacetone Production From C 3 Criegee Intermediates journal December 2016
Theoretical studies of atmospheric reaction mechanisms in the troposphere journal January 2012
Infrared-driven unimolecular reaction of CH3CHOO Criegee intermediates to OH radical products journal September 2014
Direct observation of unimolecular decay of CH 3 CH 2 CHOO Criegee intermediates to OH radical products journal July 2016
Atmospheric Chemistry of Biogenic Organic Compounds journal September 1998
Quantum chemical and RRKM/master equation studies of isoprene ozonolysis: Methacrolein and methacrolein oxide journal January 2008
Infrared Absorption Spectrum of the Simplest Criegee Intermediate CH2OO journal April 2013
Atmospheric Degradation of Volatile Organic Compounds journal December 2003
Direct evidence for a substantive reaction between the Criegee intermediate, CH 2 OO, and the water vapour dimer journal January 2015
Communication: Real time observation of unimolecular decay of Criegee intermediates to OH radical products journal February 2016
Atmospheric photooxidation of isoprene part II: The ozone-isoprene reaction journal January 1992
Chemistry of secondary organic aerosol: Formation and evolution of low-volatility organics in the atmosphere journal May 2008
Direct production of OH radicals upon CH overtone activation of (CH 3 ) 2 COO Criegee intermediates journal December 2014
Gas-Phase Ozonolysis of Alkenes:  Formation of OH from Anti Carbonyl Oxides journal July 2002
Theoretical Studies on Isoprene Ozonolysis under Tropospheric Conditions. 1. Reaction of Substituted Carbonyl Oxides with Water journal July 2003
Efficient and Accurate Double-Hybrid-Meta-GGA Density Functionals—Evaluation with the Extended GMTKN30 Database for General Main Group Thermochemistry, Kinetics, and Noncovalent Interactions journal December 2010
Unimolecular Reaction Dynamics book August 1996

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