Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

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
DOI:https://doi.org/10.1021/jacs.8b06010· OSTI ID:1477500

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. This study reports the initial laboratory synthesis and direct detection of MVK-OO through reaction of a photolytically generated, resonance-stabilized monoiodoalkene radical with O-2. 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 reveal an additional 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:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
DOE Contract Number:
AC02-06CH11357
OSTI ID:
1477500
Journal Information:
Journal of the American Chemical Society, Vol. 140, Issue 34; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English

References (78)

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

Cited By (9)

Formation of Criegee intermediates and peroxy acids: a computational study of gas-phase 1,3-cycloaddition of ozone with catechol January 2019
Electronic spectroscopy of methyl vinyl ketone oxide: A four-carbon unsaturated Criegee intermediate from isoprene ozonolysis December 2018
Calculation of the absolute photoionization cross-sections for C1–C4 Criegee intermediates and vinyl hydroperoxides April 2019
Differentiation between Enamines and Tautomerizable Imines Oxidation Reaction Mechanism using Electron-Vibration-Vibration Two Dimensional Infrared Spectroscopy March 2019
Kinetics and Thermodynamics of Reactions Involving Criegee Intermediates: An Assessment of Density Functional Theory and Ab Initio Methods Through Comparison with CCSDT(Q)/CBS Data November 2019
Gauging stability and reactivity of carbonyl O -oxide Criegee intermediates January 2019
Gas-phase ozonolysis of furans, methylfurans, and dimethylfurans in the atmosphere January 2018
Experimental and computational studies of Criegee intermediate reactions with NH 3 and CH 3 NH 2 January 2019
Ozonolysis of 3-carene in the atmosphere. Formation mechanism of hydroxyl radical and secondary ozonides January 2019