Hartmann, D.; Karthaeuser, J.; Zellner, R.:

The 248-nm photofragmentation of the peroxymethyl radical.

In: Journal of Physical Chemistry (J.Phys.Chem.), Jg. 94 (1990) ; Nr. 7, S. 2963-2966
ISSN: 0022-3654
Zeitschriftenaufsatz / Fach: Chemie
The products of the photodissocn. of CH3O2 in the 248-nm (KrF) excimer laser photolysis were investigated by both emission spectroscopy and laser-induced fluorescence (LIF). Among the products OH(A2S+), OH(X2P), and CH3O(~X2E) were identified with fractional yields of the latter 2 of j(OH) = 0.06 +- 0.03 and j(CH3O) = 0.2 +- 0.1. Formation of OH(A2S+) is suggested as a diabatic process involving an excited state of CH2OOH. The obsd. emission is sufficiently strong to utilize the 248-nm photodissocn. of CH3O2 as a monitor of this species in kinetic expts.