Organic Reactions of Oxide-Free Carbon Surfaces, an Electroactive Derivative.

摘要

In the absence of the usual oxides, surfaces of graphite and related forms of carbon are quite reactive. For example, at room temperature a highly exothermic reaction occurs with molecular oxygen to regenerate surface oxides. This chemistry is known to occur exclusively in prismatic regions, that is, surfaces other than the basal plane, (0001). Although the structure of the reactive centers is unknown, those represented by I, II, and III seemed to us more likely on thermodynamic grounds than the various alternative possibilities. By analogy with structurally similar molecules, these surface functions might be expected to undergo cycloaddition reactions with olefinic substrates. Preliminary evidence presented here tends to support this description.