%0 Journal Article
%A Morrison, Alexander
M.
%A Agarwal, Jay
%A Schaefer, Henry F.
%A Douberly, Gary E.
%D 2012
%T Infrared Laser Spectroscopy
of the CH3OO
Radical Formed from the Reaction of CH3 and O2 within a Helium Nanodroplet
%U https://acs.figshare.com/articles/journal_contribution/Infrared_Laser_Spectroscopy_of_the_CH_sub_3_sub_OO_Radical_Formed_from_the_Reaction_of_CH_sub_3_sub_and_O_sub_2_sub_within_a_Helium_Nanodroplet/2515750
%R 10.1021/jp3026368.s001
%2 https://ndownloader.figshare.com/files/4158679
%K CH 3OO
%K CH 3
%K ab initio calculations
%K helium solvated CH 3OO
%K gas phase band origins
%K helium atom evaporation
%K O 2 reaction
%K Infrared Laser Spectroscopy
%K Helium NanodropletHelium nanodroplet isolation
%K O 2
%K CH 3OO Radical
%K CH stretch region
%K O 2 reactants
%X Helium nanodroplet isolation and infrared laser spectroscopy
are
used to investigate the CH3 + O2 reaction. Helium
nanodroplets are doped with methyl radicals that are generated in
an effusive pyrolysis source. Downstream from the introduction of
CH3, the droplets are doped with O2 from a gas
pick-up cell. The CH3 + O2 reaction therefore
occurs between sequentially picked-up and presumably cold CH3 and O2 reactants. The reaction is known to lead barrierlessly
to the methyl peroxy radical, CH3OO. 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 CH3OO radical. The
CH3OO 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.
%I ACS Publications