Comparison of the fragmentations and reactivities of positive and negative ions. Thiocarboxylate ions
摘要:
Abstract(1) Thiocarboxylate anions [RCOS]− formed by dissociative secondary electron capture are either stable or fragment to yield [R]−. (2) Thiocarboxylate cations [RCOS]+ formed by charge stripping from [RCOS]−, fragment to form [R]+, [COS]+. and [RCO]+ (not when R=CF3). (3) Aryl hydrogen scrambling is observed in the case of the thiobenzoate cation. Aliphatic hydrogen scrambling is not detected for the thiopropionate cation.