Abstract

Accurate data on the Gibbs energies of gas-phase fullerene anion/fullerene molecule exchange reactions have been obtained from equilibrium constant measurements using the Knudsen cell mass spectrometry method. The electron affinities (EA) for the series of [70 + 2 n]fullerenes ( n = 0, 1,…, 18) were determined. The EA values show an increase with the size of the molecule over the whole range, although disruption from the monotonic change was observed in the series of [70]-, [72]-,[74]- and [76]fullerenes. The correlation of the EA change in the larger fullerene series with their electronic structures is discussed.

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