Literature DB >> 25372899

UV absorption probing of the conformer-dependent reactivity of a Criegee intermediate CH3CHOO.

Leonid Sheps1, Ashley M Scully, Kendrew Au.   

Abstract

We measure the UV absorption spectrum of a Criegee intermediate acetaldehyde oxide, CH3CHOO, using time-resolved broadband cavity-enhanced spectrometry. We separate the spectra of the two possible structural isomers, syn- and anti-CH3CHOO, based on their different reactivity towards H2O and SO2. Despite significant overlap, the spectra of the two conformers are sufficiently separated to allow direct conformer-specific probing of the reactions of CH3CHOO with other important tropospheric species.

Entities:  

Year:  2014        PMID： 25372899     DOI： 10.1039/c4cp04408h

Source DB:  PubMed          Journal:  Phys Chem Chem Phys        ISSN： 1463-9076            Impact factor:   3.676


  6 in total

1.  Direct kinetic measurements and theoretical predictions of an isoprene-derived Criegee intermediate.

Authors:  Rebecca L Caravan; Michael F Vansco; Kendrew Au; M Anwar H Khan; Yu-Lin Li; Frank A F Winiberg; Kristen Zuraski; Yen-Hsiu Lin; Wen Chao; Nisalak Trongsiriwat; Patrick J Walsh; David L Osborn; Carl J Percival; Jim Jr-Min Lin; Dudley E Shallcross; Leonid Sheps; Stephen J Klippenstein; Craig A Taatjes; Marsha I Lester
Journal:  Proc Natl Acad Sci U S A       Date:  2020-04-22       Impact factor: 11.205

2.  Kinetics of a Criegee intermediate that would survive high humidity and may oxidize atmospheric SO2.

Authors:  Hao-Li Huang; Wen Chao; Jim Jr-Min Lin
Journal:  Proc Natl Acad Sci U S A       Date:  2015-08-17       Impact factor: 11.205

3.  Infrared identification of the Criegee intermediates syn- and anti-CH₃CHOO, and their distinct conformation-dependent reactivity.

Authors:  Hui-Yu Lin; Yu-Hsuan Huang; Xiaohong Wang; Joel M Bowman; Yoshifumi Nishimura; Henryk A Witek; Yuan-Pern Lee
Journal:  Nat Commun       Date:  2015-05-11       Impact factor: 14.919

4.  An Estimation of the Levels of Stabilized Criegee Intermediates in the UK Urban and Rural Atmosphere Using the Steady-State Approximation and the Potential Effects of These Intermediates on Tropospheric Oxidation Cycles.

Authors:  M Anwar H Khan; William C Morris; Matthew Galloway; Beth M A Shallcross; Carl J Percival; Dudley E Shallcross
Journal:  Int J Chem Kinet       Date:  2017-06-12       Impact factor: 1.462

5.  Unimolecular decomposition rates of a methyl-substituted Criegee intermediate syn-CH3CHOO.

Authors:  Yu-Lin Li; Mei-Tsan Kuo; Jim Jr-Min Lin
Journal:  RSC Adv       Date:  2020-02-28       Impact factor: 4.036

6.  Unimolecular Kinetics of Stabilized CH3CHOO Criegee Intermediates: syn-CH3CHOO Decomposition and anti-CH3CHOO Isomerization.

Authors:  Callum Robinson; Lavinia Onel; James Newman; Rachel Lade; Kendrew Au; Leonid Sheps; Dwayne E Heard; Paul W Seakins; Mark A Blitz; Daniel Stone
Journal:  J Phys Chem A       Date:  2022-09-22       Impact factor: 2.944
  6 in total

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