We measured time-of-flight (TOF) spectra of products from the reaction O(P-3/D-1) + C2H4 at collision energy 6.4 kcal mol(-1) using a quadrupole mass filter and tunable vacuum-ultraviolet light for ionization. All carbon-containing products from five exit channels CH2CHO + H, CH2CO + H-2, CH3 + HCO, CH2 + HCHO, and CH2CO + 2H - were identified. Product channels CH2CHO + H and CH2CO + 2H associate with 3 P and D-1 atomic oxygen reactants, respectively. Both P-3 and D-1 oxygen reactants might be responsible for the other reactions. The ionization threshold of nascent vinoxy radicals is 9.3 +/- 0.1 eV. (C) 2007 Elsevier B.V. All rights reserved.