Chemical Physics Letters, Vol.343, No.5-6, 527-534, 2001
Rate constant determinations by laser photolysis/diode laser infrared absorption: examples of HCO+O-2 -> HO2+CO and CH2OH+O-2 -> HCH(O)+HO2 reactions at 294 K
The reactions of formyl (HCO) and hydroxymethyl (CH2OH) radicals with O-2 have been studied at room temperature (294 +/-2 K) using pulsed laser photolysis (PLP)/tunable diode laser (TDL) absorption spectroscopy. The formation of the stable molecular product, CO or HCH(O), has been monitored. The derived values, k(1) = (5.0 +/-0.7) x 10(-12) cm(3) molecule(-1) s(-1) and k(2) = (10 +/-1.4) x 10(-12) cm(3) molecule(-1) s(-1), are in excellent agreement with previously published values obtained with different techniques.