Probing Criegee intermediate reactions with methanol by FTMW spectroscopy

Physical Chemistry Chemical Physics : PCCP
Carlos Cabezas, Yasuki Endo

Abstract

Criegee intermediates (CIs) are carbonyl oxides generated from ozonolysis of unsaturated hydrocarbons in the atmosphere. The relatively long lifetime of CIs makes possible the bimolecular reactions with other atmospheric agents. These reactions can potentially be fast enough to contribute significantly to the tropospheric budgets of those species or to alter the rate of generation of secondary organic aerosols (SOAs). In particular, the new adducts formed in these reactions contribute SOA formation because they have larger molecular weights and lower vapor pressures than the reactants and are more condensable. α-alkoxyalkyl hydroperoxides are the nascent products derived from the insertion reactions of CIs with alcohols. In this work we report the direct detection of methoxymethyl hydroperoxide (HOOCH2OCH3, MMHP) and methoxyethyl hydroperoxide (HOOC(CH3)HOCH3, MEHP) as the reaction products between the CIs, CH2OO and CH3CHOO and methanol. High resolution Fourier transform microwave spectroscopy has been used to identify one and two conformers of MMHP and MEHP, respectively. The pre-reactive complex CH2OO-CH3OH was not observed in this experiment, which indicates that CH2OO shows a different reactivity toward methanol than that ...Continue Reading

References

Sep 21, 2013·The Journal of Chemical Physics·Masakazu Nakajima, Yasuki Endo
Nov 28, 2013·Proceedings of the National Academy of Sciences of the United States of America·Mingxi YangChristopher Fairall
Apr 10, 2014·The Journal of Chemical Physics·Masakazu Nakajima, Yasuki Endo
Sep 27, 2014·Physical Chemistry Chemical Physics : PCCP·Manoj KumarWard H Thompson
Jul 23, 2015·Physical Chemistry Chemical Physics : PCCP·Fang LiuMarsha I Lester
Aug 13, 2015·The Journal of Physical Chemistry Letters·Mica C SmithJim Jr-Min Lin
Jun 17, 2016·Physical Chemistry Chemical Physics : PCCP·Josep M Anglada, Albert Solé
Oct 7, 2016·Physical Chemistry Chemical Physics : PCCP·Liang-Chun LinJim Jr-Min Lin
Nov 17, 2016·The Journal of Chemical Physics·Carlos CabezasYasuki Endo
Aug 15, 2017·Physical Chemistry Chemical Physics : PCCP·Leonid ShepsCarl J Percival
Nov 10, 2017·Physical Chemistry Chemical Physics : PCCP·Roman A MotiyenkoJean-Claude Guillemin
Dec 30, 2017·The Journal of Physical Chemistry. a·Sara V TadayonCraig Murray
Jan 8, 2018·The Journal of Chemical Physics·Carlos Cabezas, Yasuki Endo
Sep 9, 2018·The Journal of Chemical Physics·Carlos CabezasYasuki Endo
Dec 7, 2018·The Journal of Physical Chemistry. a·Nathan A I WatsonJoseph M Beames
Dec 5, 2018·The Journal of Physical Chemistry Letters·Yen-Hsiu LinJim Jr-Min Lin
Jun 13, 2019·Physical Chemistry Chemical Physics : PCCP·Wen ChaoJim Jr-Min Lin
Aug 2, 2019·Physical Chemistry Chemical Physics : PCCP·Gustavo J R AroeiraHenry F Schaefer
Nov 21, 2019·Physical Chemistry Chemical Physics : PCCP·Carlos Cabezas, Yasuki Endo

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Citations

Mar 10, 2021·The Journal of Physical Chemistry. a·Maofa GeMingyuan Liu
May 22, 2021·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Carlos CabezasYasuki Endo

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