Infrared laser spectroscopy of the CH3OO radical formed from the reaction of CH3 and O2 within a helium nanodroplet

The Journal of Physical Chemistry. a
Alexander M MorrisonGary E Douberly

Abstract

Helium nanodroplet isolation and infrared laser spectroscopy are used to investigate the CH(3) + O(2) reaction. Helium nanodroplets are doped with methyl radicals that are generated in an effusive pyrolysis source. Downstream from the introduction of CH(3), the droplets are doped with O(2) from a gas pick-up cell. The CH(3) + O(2) reaction therefore occurs between sequentially picked-up and presumably cold CH(3) and O(2) reactants. The reaction is known to lead barrierlessly to the methyl peroxy radical, CH(3)OO. The ~30 kcal/mol bond energy is dissipated by helium atom evaporation, and the infrared spectrum in the CH stretch region reveals a large abundance of droplets containing the cold, helium solvated CH(3)OO radical. The CH(3)OO infrared spectrum is assigned on the basis of comparisons to high-level ab initio calculations and to the gas phase band origins and rotational constants.

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Citations

May 24, 2013·The Journal of Chemical Physics·Paul L RastonGary E Douberly
May 10, 2013·The Journal of Chemical Physics·Paul L RastonGary E Douberly
Feb 8, 2013·The Review of Scientific Instruments·Alexander M MorrisonGary E Douberly
Nov 21, 2012·The Journal of Chemical Physics·Paul L RastonGary E Douberly
Aug 22, 2016·The Journal of Chemical Physics·Daniel LeichtMartina Havenith
Jun 8, 2017·Physical Chemistry Chemical Physics : PCCP·Andrew M LaunderHenry F Schaefer
Apr 22, 2015·Physical Chemistry Chemical Physics : PCCP·Andreas KautschWolfgang E Ernst
Jul 28, 2016·Physical Chemistry Chemical Physics : PCCP·Marissa L Estep, Henry F Schaefer Iii
May 1, 2019·Physical Chemistry Chemical Physics : PCCP·Peter R FrankeGary E Douberly
May 17, 2021·Mass Spectrometry Reviews·Simon AlbertiniPaul Scheier
Sep 20, 2017·The Journal of Physical Chemistry. a·H Dushanee M Sriyarathne, Bruce S Ault
Dec 12, 2012·The Journal of Physical Chemistry. a·Alexander M MorrisonGary E Douberly
Apr 16, 2019·The Journal of Physical Chemistry. a·Alaina R BrownGary E Douberly
Apr 5, 2019·The Journal of Physical Chemistry. a·Peter R FrankeGary E Douberly
Feb 5, 2013·The Journal of Physical Chemistry. a·Paul L RastonGary E Douberly

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