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Fig. 4

image

Fragmentation pattern for the coronene (panel a), ovalene (panel b) and circumcoronene (panel c) cations. They are taken at 10, 100 and 1000 G0, respectively.–12H corresponds to the point in all molecules where aliphatic loss is no longer possible. Solo hydrogens are still left in the molecule at this stage in ovalene and circumcoronene (two and six, respectively).

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