Some of the most reactive O-2((1) Delta(g)) scavengers have been used as substrates to explore the chemical reactivity of O-2((1) Sigma(g)(+)) in CCl4. No chemical deactivation channel could be found. However, an additional physical deactivation by the substrate was observed, which competes with the collision-induced deactivation of O-2((1) Sigma(g)(+)) by the substrate and which also leads to the formation of O-2((1) Delta(g)). The sate constant of this additional deactivation of O-2((1) Sigma(g)(+)) is very similar to the rate constant of the deactivation of O-2((1) Delta(g)) by the substrate.