Abstract Nitrogen dioxide is used as a “radical scavenger” to probe the position of carbon- centered radicals within complex radical ions in the gas phase. As with analogous neutral radical reactions, this addition results in formation of an [M+ NO 2]+ adduct, but the structural identity of this species remains ambiguous. Specifically, the question remains: do such adducts have a nitro-(RNO 2) or nitrosoxy-(RONO) moiety, or are both isomers present in ...
